AGREEMENT AND PLAN OF MERGER
                                      Among
                          SILVER RIVER VENTURES, INC.,
                        SILVER RIVER ACQUISITIONS, INC.,
                           BIOFORCE NANOSCIENCES, INC.
                                       AND
                     H. ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ AND ▇▇▇▇▇▇ ▇. ▇▇▇▇▇
                          AGREEMENT AND PLAN OF MERGER
       THIS AGREEMENT AND PLAN OF MERGER (this  "Agreement") is made and entered
into as of this 30th day of November  2005 by and among SILVER  RIVER  VENTURES,
INC., a Nevada Corporation ("Silver River"), SILVER RIVER ACQUISITIONS,  INC., a
Nevada  corporation  ("Merger  Sub"),  BIOFORCE  NANOSCIENCES,  INC., a Delaware
corporation  ("BioForce") and H. ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ and ▇▇▇▇▇▇ ▇. ▇▇▇▇▇, principal
stockholders of Silver River who will make certain  representations,  warranties
and covenants herein ("Principal Stockholders") (the "SR Stockholders").
       WHEREAS,  Silver  River  desires to acquire  BioForce  as a wholly  owned
subsidiary  and to issue  shares of Silver  River  common  stock to the security
holders of BioForce upon the terms and conditions  set forth herein.  Merger Sub
is a  newly-created,  wholly-owned  subsidiary  corporation of Silver River that
will be merged with and into BioForce,  whereupon BioForce will be the surviving
corporation and will become the wholly owned subsidiary of Silver River.  Merger
Sub and BioForce are sometimes  collectively  hereinafter  referred to herein as
the "Constituent Corporations");
       WHEREAS,  the  boards  of  directors  of  Silver  River,  Merger  Sub and
BioForce,  respectively,  deem it  advisable  and in the best  interests of such
corporations and their respective  stockholders  that Merger Sub merges with and
into BioForce  pursuant to this Agreement and the  Certificate of Merger (in the
form attached hereto as Attachment "A") and pursuant to applicable provisions of
law (such transaction is hereafter referred to as the "Merger");
       WHEREAS, the SR Stockholders own,  beneficially and of record,  1,746,610
shares of common  stock of Silver  River,  representing  87.3% of the issued and
outstanding common stock of Silver River; and
       WHEREAS,  each of the parties to this  Agreement  desires to make certain
representations,  warranties and agreements in connection with the  transactions
contemplated herein and also to prescribe various conditions thereto.
       NOW THEREFORE, in consideration of the premises, mutual covenants set out
herein and other good and valuable  consideration,  the  sufficiency of which is
hereby acknowledged, the parties agree as follows:
       SECTION 1 Acquisition of BioForce Nanosciences,  Inc. The parties to this
Agreement do hereby agree that Merger Sub will be merged with and into  BioForce
upon the terms  and  conditions  set forth  herein  and in  accordance  with the
provisions  of the Nevada  Revised  Statutes  ("NRS") and the  Delaware  General
Corporation  Law (the "DGCL").  It is the  intention of the parties  hereto that
this  transaction   qualifies  as  a  tax-free   reorganization   under  Section
368(a)(2)(E)  of the  Internal  Revenue  Code of 1986,  as amended,  and related
sections thereunder.
       SECTION 2 Terms of Merger.  In  accordance  with the  provisions  of this
Agreement and the requirements of applicable law, Merger Sub will be merged with
and into  BioForce as of the Effective  Time of the Merger (the terms  "Closing"
and  "Effective  Time of the Merger" are defined in Section 6 hereof).  BioForce
will be the  surviving  corporation  (hereinafter  sometimes  referred to as the
                                      -2-
"Surviving  Corporation") and the separate existence of Merger Sub will cease at
the Effective Time of the Merger.  BioForce, as the Surviving Corporation,  will
succeed to and assume all the rights and obligations of Merger Sub in accordance
with the NRS and the DGCL, as described  below.  Consummation of the Merger will
be upon the following terms and subject to the conditions set forth herein:
       (a) Corporate Existence.  Commencing at the Effective Time of the Merger,
       the  separate  corporate  existence  of  Merger  Sub will  cease  and the
       Surviving Corporation will continue its corporate existence as a Delaware
       corporation; and
             (i)   it  will  thereupon  and   thereafter   possess  all  rights,
                   privileges,  powers,  franchises and property (real, personal
                   and mixed) of each of the Constituent Corporations;
             (ii)  all debts due to either of the Constituent  Corporations,  on
                   whatever  account,  all causes in action and all other things
                   belonging  to either of the  Constituent  Corporations  will,
                   except as otherwise set forth herein,  be taken and deemed to
                   be  transferred  to and  will  be  vested  in  the  Surviving
                   Corporation  by virtue of the Merger  without  further act or
                   deed; and
             (iii) all  rights of  creditors  and all  liens,  if any,  upon any
                   property  of any  of the  Constituent  Corporations  will  be
                   preserved  unimpaired,   limited  in  lien  to  the  property
                   affected  by such liens  immediately  prior to the  Effective
                   Time of the Merger, and all debts,  liabilities and duties of
                   the Constituent  Corporations will thenceforth  attach to the
                   Surviving Corporation.
       (b) Effective Time of the Merger. At the Effective Time of the Merger,
             (i)   the Certificate of Incorporation  and the Bylaws of BioForce,
                   as existing and in effect  immediately prior to the Effective
                   Time of the  Merger,  will be and remain the  Certificate  of
                   Incorporation and Bylaws of the Surviving Corporation;
             (ii)  the members of the Board of  Directors  of  BioForce  holding
                   office  immediately prior to the Effective Time of the Merger
                   will remain as the members of the Board of  Directors  of the
                   Surviving  Corporation until their respective  successors are
                   elected  or  appointed  and  qualified  (if on or  after  the
                   Effective Time of the Merger a vacancy exists on the Board of
                   Directors  of the  Surviving  Corporation,  such  vacancy may
                   thereafter be filled in a manner  provided by applicable  law
                   and the Bylaws of the Surviving Corporation); and
             (iii) until the Board of  Directors  of the  Surviving  Corporation
                   otherwise  determines,   all  persons  who  hold  offices  of
                   BioForce at the Effective Time of the Merger will continue to
                   hold the same offices of the Surviving Corporation.
       (c)  Conversion of  Securities.  At the Effective  Time of the Merger and
       without any action on the part of Silver River,  Merger Sub,  BioForce or
       the holders of any of the securities of any of these  corporations,  each
       of the following will occur:
             (i)    The  13,397,425  shares of BioForce  common stock issued and
                    outstanding  immediately  prior to the Effective Time of the
                    Merger,  which  amount  includes  shares  to  be  issued  by
                    BioForce prior to the Closing upon the conversion of certain
                    outstanding  options and  warrants to acquire  shares of Bio
                                      -3-
                    Force  common  stock,  will be  converted  into the right to
                    receive an  aggregate of  16,000,000  shares of Silver River
                    common  stock,  which shares will reflect the two (2) shares
                    for one (1) share forward  stock split to be effected  prior
                    to the Closing of the Merger and as depicted in Section 4(d)
                    below.  Accordingly,  each one (1) share of BioForce  common
                    stock is to be converted  into the right to receive  1.19426
                    shares  of  Silver  River  common  stock  (the   "Conversion
                    Ratio").  No  fraction of any share of Silver  River  common
                    stock will be issued to any former holder of BioForce common
                    stock;  rather,  the number of shares of Silver River common
                    stock otherwise issuable, if other than a whole number, will
                    be rounded to the nearest whole number.  The holders of such
                    certificates previously evidencing shares of BioForce common
                    stock outstanding immediately prior to the Effective Time of
                    the Merger  will cease to have any  rights  with  respect to
                    such shares of  BioForce's  common stock except as otherwise
                    provided  herein  or by law.  (ii) Any  shares  of  BioForce
                    capital  stock held in the treasury of BioForce  immediately
                    prior to the Effective Time of the Merger will automatically
                    be canceled and extinguished  without any conversion thereof
                    and no payment  will be made with  respect  thereto.  At the
                    Effective  Time of the Merger,  the stock  transfer books of
                    BioForce  will be closed  and  thereafter,  there will be no
                    further  registration  of  transfers  on the stock  transfer
                    books of the Surviving Corporation of any shares of BioForce
                    common stock which were outstanding immediately prior to the
                    Effective Time.
             (iii)  Each  share  of  common  stock  of  Merger  Sub  issued  and
                    outstanding  immediately  prior to the Effective Time of the
                    Merger will remain in existence as one share of common stock
                    of the Surviving Corporation,  which will be owned by Silver
                    River.
             (v)    The 1,999,975 shares of Silver River common stock issued and
                    outstanding  prior  to the  Merger,  which  shares  will  be
                    increased  to  3,999,950  shares as a result of the 2 shares
                    for 1 share  Forward  Stock Split  described in Section 2(d)
                    below,   will  remain  issued  and  outstanding   after  the
                    Effective Time of the Merger.
       (d) Forward Stock Split. Prior to the Closing of the Merger, Silver River
       will take all requisite  and  necessary  action to effect a forward stock
       split (the "Forward Stock Split") of its issued and outstanding shares of
       common  stock on a 2 shares for 1 share  basis,  the effect of which will
       increase  the number of issued  and  outstanding  shares of Silver  River
       common stock to 3,999,950  shares.  In connection  with the Forward Stock
       Split,  no  fraction  of any share  Silver  River  Shares will be issued;
       rather,  the number of shares otherwise  issuable,  if other than a whole
       number, will be rounded up to the next whole number.
       (e) Restricted Securities.
             (i)    None of the shares of Silver  River  common stock into which
                    the  shares of  BioForce  common  stock are to be  converted
                    will,  at the  Effective  Time of the Merger,  be registered
                    under  the   Securities   Act  of  1933,   as  amended  (the
                    "Securities  Act") but, rather,  will be deemed to have been
                    issued  pursuant to an  exemption  or  exemptions  therefrom
                    (subject  to the  satisfaction  of certain  other  terms and
                                      -4-
                    conditions  hereof)  and  will  be  considered   "restricted
                    securities" within the meaning of Rule 144 promulgated under
                    the Securities  Act. All shares of Silver River common stock
                    to be issued  pursuant to this Agreement will be exempt from
                    registration  under the  Securities  Act pursuant to Section
                    4(2)  of  that  Act  and  Regulation  D -  Rule  506  and/or
                    Regulation  S  promulgated   thereunder,   and  certificates
                    representing  the  shares  will  bear a  restrictive  legend
                    worded  substantially  as follows  and as may  otherwise  be
                    required:
                         "The shares  represented by this  certificate  have not
                         been  registered  under the Securities Act of 1933 (the
                         "Act") and are "restricted  securities" as that term is
                         defined  in Rule 144 under the Act.  The shares may not
                         be  offered  for sale,  sold or  otherwise  transferred
                         except pursuant to an exemption from registration under
                         the Act, the availability of which is to be established
                         to the satisfaction of the corporation."
            (ii)    At the Closing,  Silver River will direct its transfer agent
                    to record,  as soon as  practicable  after the Closing,  the
                    issuance  of Silver  River  common  stock to the  holders of
                    BioForce's common stock pursuant to the provisions set forth
                    above.  The  transfer  agent will  annotate  its  records to
                    reflect the restrictions on transfer  embodied in the legend
                    set forth  above.  There  will be no  requirement  of Silver
                    River to  register  under the  Securities  Act any shares of
                    Silver River common stock in connection with the Merger.
       (f)   Other Matters.
             (i)    mmediately  prior  to the  Effective  Time  of  the  Merger,
                    BioForce  will  have  no  more  than  14,785,588  shares  of
                    BioForce  common  stock  issued and  outstanding,  which may
                    include  the  13,397,425  shares of  BioForce  common  stock
                    referenced in Section 2(c)(i) above and 1,388,163  shares of
                    BioForce  common stock which may be issued upon  exercise or
                    conversion of certain  options and warrants  outstanding  on
                    the date hereof.  Immediately prior to the Effective Time of
                    the Merger,  Silver  River will have no more than  3,999,950
                    shares of Silver  River  common stock and no other series of
                    common stock issued and outstanding.
             (ii)   From  and  after  the  Closing  and  with a view  to  making
                    available to holders of Silver  River common stock  issuable
                    hereunder the benefits of Rule 144 of the Securities Act, or
                    any other similar rule or regulation of the  Securities  and
                    Exchange  Commission  ("SEC"),  Silver  River  will take all
                    action as may be required as a condition to the availability
                    of Rule  144  under  the  Securities  Act (or any  successor
                    exemptive rule hereinafter in effect) with respect to Silver
                    River common stock and furnish to any holder of Silver River
                    common stock forthwith, upon request, a written statement by
                    Silver  River  as  to  its  compliance  with  the  reporting
                    requirements  of Rule 144, a copy of the most recent  annual
                    or  quarterly  report of Silver  River as filed with the SEC
                    and  such  other  reports  and  documents  as a  holder  may
                    reasonably  request  in  availing  itself  of  any  rule  or
                    regulation  of the SEC  allowing  a holder  to sell any such
                    Silver  River  common  stock  without   registration,   upon
                    satisfaction  of all  applicable  provisions  of  Rule  144.
                                      -5-
                    Silver River agrees to facilitate and expedite  transfers of
                    the shares of Silver River common stock pursuant to Rule 144
                    under the Securities  Act, which efforts will include timely
                    notice to its transfer  agent to expedite such  transfers of
                    such shares.
             (iii)  Immediately prior to the Closing,  the Silver River Board of
                    Directors will nominate and elect to the Silver River Board,
                    ▇▇▇▇   ▇▇▇▇▇▇▇▇▇,   ▇▇▇▇-▇▇▇▇▇▇▇   ▇▇▇▇▇▇  and  ▇▇▇▇▇  ▇▇▇▇,
                    effective  immediately  upon the  Closing,  and Silver River
                    will cause all of the persons then serving as directors  and
                    officers of Silver River immediately prior to the Closing to
                    tender  their   resignations   as  directors  and  executive
                    officers of Silver  River,  effective  immediately  upon the
                    Closing.  Following the Closing, the Silver River Board will
                    be  granted  the  right to  appoint  up to three  additional
                    Directors to the Silver River Board of  Directors.  All such
                    directors  shall  serve in such  capacities  until  the next
                    meeting of  stockholders  of Silver River at which directors
                    are elected.
            (iv)    The parties hereto  acknowledge  and agree that,  subject to
                    Section  2(g),  at the Closing of this  Agreement,  ▇▇▇▇▇▇▇▇
                    Investment  Company,  a private company having its principal
                    offices  in Salt Lake  City,  Utah will have  earned  and be
                    entitled to a one-time fee of $250,000 in consideration  for
                    certain   services   rendered   in   connection   with   the
                    consummation  of this Agreement and other  services.  Silver
                    River and BioForce agree that the $250,000 fee is to be paid
                    as set forth below in Section 2(g) below.
             (v)    Following  the  Closing  of this  Agreement,  as  defined in
                    Section  2(g)  below,  current  holders  of  BioForce  stock
                    options and  warrants  will have their  options and warrants
                    converted  into new options  and  warrants,  exercisable  to
                    purchase  shares of Silver River common stock,  on terms and
                    conditions  equivalent to the existing  terms and conditions
                    of the  respective  BioForce  options and/or  warrants.  The
                    parties hereto acknowledge and agree that the maximum number
                    of shares of Silver River  common stock to be available  for
                    the  conversion  of  existing  BioForce  stock  options  and
                    warrants  following  the Closing will be  1,657,828  shares.
                    This number has been determined by taking the maximum number
                    of  BioForce  shares  (1,388,163)  into  which the  existing
                    BioForce  stock  options and warrants  may be converted  and
                    multiplying by 1.19426  (Conversion  Ratio).  Also, each new
                    option or warrant will be exercisable or convertible  into a
                    number  of  Silver  River  shares  equal  to the  number  of
                    BioForce  shares subject to the existing  option or warrant,
                    multiplied by the Conversion  Ratio.  Further,  the exercise
                    price per shares for each new option or warrant to  purchase
                    Silver  River  shares  will equal the  conversion  price per
                    share of the existing BioForce options or warrants,  divided
                    by the Conversion Ratio. -
            (vi)    If, at any time after the  Closing,  any  further  action is
                    necessary  or  desirable  to carry out the  purposes of this
                    Agreement,  the officers  and  directors of Silver River are
                    hereby  fully   authorized  to  take,  and  will  use  their
                    reasonable  efforts to take,  all such lawful and  necessary
                    action.
                                      -6-
       (g)   Financing.
             (i)    Following  the  execution  of this  Agreement,  the  parties
                    hereto  agree that Silver River will use its best efforts to
                    arrange for financing in the form of a private  placement of
                    its  securities  for a minimum of $2.5 million and a maximum
                    of $6.0 million for the benefit of BioForce and Silver River
                    (the "Private Placement").  The parties hereto further agree
                    that  ▇▇▇▇▇▇▇▇  Investment  Company will assist in arranging
                    for  this  financing.   ▇▇▇▇▇▇▇▇   Investment  Company  will
                    participate  only as a finder in any  prospective  financing
                    and will not negotiate for or participate in the actual sale
                    of any securities.
             (ii)   The  Private   Placement   will  be  made   pursuant  to  an
                    equity-based  security  in the form of a  "Unit,"  each Unit
                    consisting  of  one  share  of  Silver  River  common  stock
                    (post-split)  and one stock purchase warrant to purchase one
                    additional share of Silver River common stock  (post-split).
                    Each Unit will be offered at a price of $1.50 per Unit. Each
                    common  stock  purchase  warrant  included  in the Unit will
                    entitle  the  holder to  purchase  one  additional  share of
                    Silver  River  common  stock at the price of $1.75 per share
                    for a 45-day period  beginning on the effective  date of the
                    registration  statement described in Section 2(g)(vi) below,
                    and each  common  stock  purchase  warrant  will  expire  if
                    unexercised  at the end of such  45-day  period.  All  other
                    terms of the Private  Placement  and the  warrants  shall be
                    approved by BioForce in its reasonable discretion.
             (iii)  In connection with the Private Placement, BioForce agrees to
                    assist  Silver River in the  preparation  of a  confidential
                    private  placement  memorandum  (the  "PPM")  to be  used in
                    connection  with the offering of Units and to provide Silver
                    River  with  all   information,   documents   and  financial
                    statements  with respect to BioForce  required and necessary
                    to be included in the PPM.
             (iv)   All funds realized from the Private Placement financing will
                    be placed into a special escrow account with an escrow agent
                    reasonably  acceptable  to both  Silver  River and  BioForce
                    until both (A) the minimum of $2,500,000  in gross  proceeds
                    has been realized  pursuant to the Private Placement and (B)
                    the  Merger  has  been  completed  and the  Closing  of this
                    Agreement has occurred.  Upon the  satisfaction of the above
                    criteria,  the funds will be released to BioForce and Silver
                    River.
             (v)    Upon realizing the minimum $2,500,000 in gross proceeds from
                    the  Private  Placement  and  effecting  the Closing of this
                    Agreement,  the $250,000  one-time fee  described in Section
                    2(f)(iv)  above  will  be  payable  to  ▇▇▇▇▇▇▇▇  Investment
                    Company  and the parties  hereto  agree that the fee will be
                    paid immediately upon the escrowed funds being released from
                    the special escrow account.
            (vi)    Following  completion  of  the  Private  Placement  and  the
                    Closing of this  Agreement,  the parties hereto agree to use
                    their best effort to cause  Silver River to prepare and file
                    with the SEC a registration statement on Form SB-2, or other
                    equivalent and appropriate form,  relating to certain issued
                                      -7-
                    and outstanding  shares of Silver River common stock.  Those
                    shares of Silver  River common stock that may be included in
                    the  registration  statement  will be (x)  shares  of Silver
                    River common stock  included  within the Units sold pursuant
                    to the Private  Placement,  including those shares of common
                    stock underlying the stock purchase warrants;  (y) shares of
                    certain  current  BioForce  stockholders  that have existing
                    registration  rights  relating to their BioForce  shares and
                    who will receive Silver River shares pursuant to the Merger;
                    and (z) such other shares as may be determined by the Silver
                    River Board of Directors following the Closing.
       SECTION 3 Delivery  of  Shares.  On or as soon as  practicable  after the
Effective Time of the Merger,  BioForce will use reasonable efforts to cause all
holders of BioForce's common stock (the "BioForce Stockholders") to surrender to
Silver River's transfer agent for cancellation  certificates  representing their
shares of BioForce's common stock, against delivery of certificates representing
the shares of Silver River common stock for which BioForce's  common stock is to
be  converted in the Merger  pursuant to Section 2 hereof.  Each of the BioForce
Stockholders  will be required,  prior to or upon  surrender  of their  BioForce
common stock, to deliver to Silver River an "investment letter" or other written
instrument  acceptable  to the parties  hereto,  providing,  among other things,
whether  or not the  investor  is an  "accredited  investor"  as  defined  under
Regulation D of the  Securities  Act, and whether or not the investor is a "U.S.
Person" as defined by Regulation S of the Securities Act. Until  surrendered and
exchanged as herein provided,  each outstanding  certificate which, prior to the
Effective Time of the Merger,  represented BioForce common stock, will be deemed
for all corporate purposes to evidence ownership of the same number of shares of
Silver  River  common  stock  into  which the shares of  BioForce  common  stock
represented by such BioForce certificate will have been so converted.
       SECTION 4  Representations  of BioForce.  BioForce hereby makes as of the
date  hereof  and  as of  the  Effective  Time  of  the  Merger,  the  following
representations and warranties:
       (a) As of the date  hereof  and for the  purpose of this  Agreement,  the
       total number of shares of BioForce common stock issued and outstanding is
       13,397,425 shares,  which amount includes shares to be issued by BioForce
       prior to the Closing upon the conversion of certain  outstanding  options
       and warrants to acquire shares of Bio Force common stock.
       (b) BioForce common stock  constitutes duly authorized and validly issued
       shares  of common  stock of  BioForce.  All  shares  are  fully  paid and
       nonassessable.
       (c) The audited  financial  statements of BioForce as of and for the year
       ended  December 31, 2004 and unaudited  interim  financial  statements of
       BioForce for the period ended October 31, 2005, which have been delivered
       to Silver River, or will be delivered  prior to the Closing  (hereinafter
       referred to as the "BioForce Financial  Statements"),  fairly present the
       financial  condition of BioForce as of the dates  thereof and the results
       of its  operations  for the periods  covered  thereby.  Other than as set
       forth in any  schedule  or  exhibit  attached  hereto,  and except as may
       otherwise  be set  forth or  referenced  herein,  there  are no  material
       liabilities or obligations,  either fixed or contingent, not disclosed or
       referenced  in BioForce  Financial  Statements or in any exhibit or notes
       thereto  other than  contracts or  obligations  occurring in the ordinary
       course of business  since  October 31,  2005;  and no such  contracts  or
       obligations occurring in the ordinary course of business constitute liens
       or other  liabilities  which materially alter the financial  condition of
       BioForce as reflected in BioForce Financial Statements.  BioForce has, or
       will  have at the  Closing,  good  title  to all  assets,  properties  or
       contracts  shown  on  BioForce  Financial   Statements  subject  only  to
       dispositions  and other  transactions in the ordinary course of business,
       the disclosures set forth therein and liens and encumbrances of record.
                                      -8-
       (d) Except as disclosed  in writing to Silver  River,  since  October 31,
       2005,  there has not been any material  adverse  changes in the financial
       position of BioForce  except  changes  arising in the ordinary  course of
       business,  which changes will not  materially  and  adversely  affect the
       financial position of BioForce.
       (e) Except as and to the extent set forth in Attachment 4(e), BioForce is
       not a party to any material  pending  litigation  or, to the knowledge of
       its  executive  officers  (herein,  the  "BioForce's   Knowledge"),   any
       governmental  investigation  or  proceeding,  not  reflected  in BioForce
       Financial  Statements,   and,  to  BioForce's   Knowledge,   no  material
       litigation,  claims,  assessments  or any  governmental  proceedings  are
       threatened in writing against BioForce.
       (f) Neither  BioForce nor any of its officers,  employees or agents,  nor
       any  other  person  acting  on  behalf  of  BioForce,   has  directly  or
       indirectly,  within the past five years, given or agreed to give any gift
       or similar  benefit to any person who is or may be in a position  to help
       or hinder BioForce's business, or assist it in connection with any actual
       or  proposed  transaction,  which (i)  might be  reasonably  expected  to
       subject it to any  material  damage or penalty in any action or to have a
       material adverse effect on BioForce or its business,  assets, properties,
       financial  condition  or  results  of  operations  (a  "Material  Adverse
       Effect"),  (ii) if not  given in the past,  might  have  reasonably  been
       expected to have had a Material Adverse Effect, or (iii) if not continued
       in the future,  might be reasonably  expected to have a Material  Adverse
       Effect or to subject BioForce to material suit or penalty in any action.
       (g) BioForce is in good standing in its state of incorporation, and is in
       good  standing  and duly  qualified  to do  business  in each state where
       required to be so qualified, except where the failure to so qualify would
       have no Material Adverse Effect.
       (h) BioForce has, or by the Effective Time of the Merger will have, filed
       all  material  tax,  governmental  and/or  related  forms and reports (or
       extensions thereof) due or required to be filed in the ordinary course of
       business and has (or will have) paid or made adequate  provisions for all
       taxes or  assessments  which have become due as of the Effective  Time of
       the Merger.
       (i) BioForce has not materially  breached any material agreement to which
       it is a party.  BioForce has  previously  given Silver River copies of or
       access to all material contracts,  commitments and/or agreements to which
       BioForce is a party.
       (j) BioForce has the  requisite  corporate  power and  authority to enter
       into this  Agreement  together with such other  agreements  and documents
       requisite to this Agreement (the "Transaction  Documents") to which it is
       a party and to perform its  obligations  hereunder  and  thereunder.  The
       execution and delivery of this Agreement and other Transaction  Documents
       to  which  it  is a  party  and  the  consummation  of  the  transactions
       contemplated  hereby and thereby have been,  or will prior to the Closing
       and the  Effective  Time of the Merger be, duly  authorized by BioForce's
       Board of Directors and by BioForce's  stockholders  (if  necessary).  The
       execution of this  Agreement  and other  Transaction  Documents  does not
       materially  violate or breach any material agreement or contract to which
       BioForce is a party, and BioForce,  to the extent required,  has, or will
       have by Closing, obtained all necessary approvals or consents required by
       any agreement to which BioForce is a party. The execution and performance
       of this  Agreement and other  Transaction  Documents  will not violate or
       conflict with any provision of BioForce's Certificate of Incorporation in
       effect as of the date hereof, or Bylaws of BioForce.
                                      -9-
       (k) Information  regarding  BioForce which has been delivered by BioForce
       to Silver  River for use in  connection  with the Merger,  including  the
       preparation  of the  Information  Statement and the PPM, was, at the time
       provided,  to  BioForce's  Knowledge,  true and  accurate in all material
       respects.
       (l) To BioForce's  Knowledge,  BioForce has and at the Closing will have,
       disclosed  in writing to Silver  River all events,  conditions  and facts
       materially affecting the business,  financial  conditions  (including any
       liabilities,  contingent  or  otherwise)  or  results  of  operations  of
       BioForce.
       (m) To  BioForce's  Knowledge  BioForce  is,  and has  been  in  material
       compliance with, and BioForce has conducted any business previously owned
       or operated by it in  material  compliance  with,  all  applicable  laws,
       orders,  rules and regulations of all  governmental  bodies and agencies,
       including  applicable  securities laws and regulations and  environmental
       laws and  regulations,  except where such  noncompliance in the aggregate
       has not had,  and would not be  reasonably  expected to have,  a Material
       Adverse  Effect.  BioForce has not received  notice of any  noncompliance
       with the foregoing, nor is it aware of any claims or claims threatened in
       writing in connection therewith.
       (n) To BioForce's Knowledge without limiting the foregoing,  (i) BioForce
       and any other person or entity for whose conduct BioForce is legally held
       responsible are and have been in material  compliance with all applicable
       federal, state, regional,  local laws, statutes,  ordinances,  judgments,
       rulings and regulations relating to any matters of pollution,  protection
       of the  environment,  health or safety,  or  environmental  regulation or
       control, and (ii) neither BioForce nor any other person for whose conduct
       BioForce  is  legally  held  responsible  has  manufactured,   generated,
       treated, stored, handled, processed, released, transported or disposed of
       any  hazardous  substance  on,  under,  from  or  at  any  of  BioForce's
       properties or in connection with BioForce's operations.
       (o) Except as, and to the extent specifically disclosed in this Agreement
       and as may be specifically  disclosed or reserved against it as to amount
       in the latest balance sheet contained in BioForce  Financial  Statements,
       there is no basis for any  assertion  against  BioForce  of any  material
       liabilities  or  obligations of any nature,  whether  absolute,  accrued,
       contingent  or  otherwise  and whether  due or to become due,  including,
       without limitation,  any liability for taxes (including  e-commerce sales
       or other  taxes),  interest,  penalties  and other  charges  payable with
       respect thereto.  Neither the execution and delivery of this Agreement or
       other Transaction  Documents to which it is a party, nor the consummation
       of the transactions contemplated hereby or thereby will
             (i)    result in any payment (whether  severance pay,  unemployment
                    compensation or otherwise) becoming due from BioForce to any
                    person or entity, including without limitation any employee,
                    director, officer or affiliate or former employee, director,
                    officer or affiliate of BioForce;
            (ii)    increase  any  benefits  otherwise  payable to any person or
                    entity, including without limitation any employee, director,
                    officer or affiliate or former employee,  director,  officer
                    or affiliate of BioForce; or
             (iii)  result in the acceleration of the time of payment or vesting
                    of any such benefits.
                                      -10-
       (p) Except as disclosed to Silver River in writing and annexed  hereto as
       Attachment  4(p),  to  BioForce's  Knowledge  BioForce  has  no  material
       contracts,  commitments,  arrangements, or understandings relating to its
       business, operations,  financial condition,  prospects, or otherwise. For
       purposes of this Section 4(p), "material" means payment or performance of
       a contract,  commitment,  arrangement  or  understanding  in the ordinary
       course of business,  which is expected to involve  payments from BioForce
       to any third party in excess of $100,000.
       (q) To BioForce's  Knowledge,  no  representation or warranty by BioForce
       contained in this Agreement  contains any untrue  statement of a material
       fact or omits to state a  material  fact  necessary  in order to make the
       statements  therein  not  misleading.  Except as  specifically  indicated
       elsewhere  in this  Agreement,  all  documents  delivered  by BioForce in
       connection  herewith have been and will be complete  originals,  or exact
       copies thereof.
       SECTION  5  Representations  of  Silver  River,  Merger  Sub  and  the SR
Stockholders.  Silver  River,  Merger Sub and the SR  Stockholders  hereby  make
jointly and severally, as of the date hereof and as of the Effective Time of the
Merger, the following representations and warranties:
       (a) As of the date  hereof  and the  Effective  Time of the  Merger,  the
       shares of Silver  River  common  stock to be issued and  delivered to the
       security holders of BioForce  hereunder and in connection  herewith will,
       when so issued and delivered,  constitute  duly  authorized,  validly and
       legally issued,  fully-paid,  nonassessable shares of Silver River common
       stock, free of all liens and encumbrances.
       (b) Each of Silver River and Merger Sub has the requisite corporate power
       to enter into this  Agreement and to perform its  respective  obligations
       hereunder.   The  execution  and  delivery  of  this  Agreement  and  the
       consummation  of the  transactions  contemplated  hereby (i) have been or
       will prior to the  Closing and the  Effective  Time of the Merger be duly
       authorized  by the  respective  Boards of  Directors  of Silver River and
       Merger Sub and by Silver River as the sole stockholder of Merger Sub, and
       (ii)  except  as set  forth in  Section  7(e)  hereof,  do not have to be
       approved or authorized by the stockholders of Silver River. The execution
       and  performance of this Agreement will not constitute a material  breach
       of any agreement,  indenture,  mortgage,  license or other  instrument or
       document to which Silver River,  Merger Sub or the SR  Stockholders  is a
       party or to which  it is  otherwise  subject  and  will not  violate  any
       judgment,   decree,  order,  writ,  law,  rule,  statute,  or  regulation
       applicable to Silver River, Merger Sub or their properties. The execution
       and  performance  of this Agreement will not violate or conflict with any
       provision of the respective  Certificates of  Incorporation  or Bylaws of
       either  Silver  River or Merger Sub.  Each of the SR  Stockholders  is an
       individual  and each has the  authority  and  capacity  to enter into and
       execute this  Agreement  and to be obligated to the terms and  conditions
       set forth herein.
       (c) Silver River has  delivered  to BioForce a true and complete  copy of
       its audited financial  statements for the fiscal years ended December 31,
       2004,  and 2003,  and unaudited  financial  statements for the nine-month
       period   ended   September   30,  2005  (the  "Silver   River   Financial
       Statements").   The  Silver  River  Financial  Statements  are  complete,
       accurate and fairly present the financial condition of Silver River as of
       the dates thereof and the results of its  operations for the periods then
       ended.  There are no material  liabilities or obligations either fixed or
       contingent not reflected therein.  The Silver River Financial  Statements
       have been prepared in accordance  with United States  generally  accepted
       accounting  principles  applied on a consistent  basis  (except as may be
                                      -11-
       indicated  therein  or in the  notes  thereto)  and  fairly  present  the
       financial  position  of  Silver  River as of the  dates  thereof  and the
       results of its  operations  and  changes in  financial  position  for the
       periods  then ended.  Silver River  agrees to provide  updated  quarterly
       financial  statements as required by the SEC. Merger Sub has no financial
       statements  because it was  recently  formed  solely  for the  purpose of
       effectuating  the Merger  and it has been,  is and will  remain  inactive
       except for  purposes  of the  Merger  and it has no assets,  liabilities,
       contracts  or  obligations  of any kind  other  than as  incurred  in the
       ordinary course in connection with its  incorporation  in Nevada.  Silver
       River has no subsidiaries or affiliates  except for Merger Sub and Merger
       Sub has no subsidiaries or affiliates.
       (d) Since  September 30, 2005,  there have not been any material  adverse
       changes in the business,  financial  condition or results of operation of
       Silver River.  At the Closing,  neither  Silver River nor Merger Sub will
       have any material  assets and neither such  corporation now has, nor will
       it have, any  liabilities  of any kind other than those  reflected in the
       most  recent  balance  sheet  set  forth in the  Silver  River  Financial
       Statements and any costs or liabilities  incurred in connection  with the
       Merger  (which  costs  and  liabilities,   including  those   liabilities
       reflected in the most recent  balance sheet set forth in the Silver River
       Financial  Statements,  collectively will be paid in full by Silver River
       prior to the Closing so that at Closing,  Silver River has no outstanding
       liabilities).
       (e) Neither Silver River nor Merger Sub is a party to, or the subject of,
       any material pending litigation, claims, or governmental investigation or
       proceeding not reflected in the Silver River Financial Statements, and to
       the  knowledge  of the  executive  officers of Silver River and of the SR
       Stockholders (herein "Silver River's  Knowledge"),  there are no material
       lawsuits,  claims,  assessments,   investigations,  or  similar  matters,
       threatened in writing against Merger Sub, Silver River, or the management
       or properties of Silver River or Merger Sub.
       (f) Silver River and Merger Sub are each duly organized, validly existing
       and in  good  standing  under  the  laws  of the  jurisdiction  of  their
       respective  incorporation;  each  has  the  corporate  power  to own  its
       property and to carry on its business as now being  conducted and is duly
       qualified  to do business in any  jurisdiction  where so required  except
       where the failure to so qualify would have no material  negative  impact.
       Neither  corporation  is required to be  qualified  to do business in any
       state other than the State of Nevada.
       (g) To Silver River's  Knowledge,  Silver River and Merger Sub have filed
       all federal,  state, county and local income, excise,  property and other
       tax, governmental and/or other returns, forms, filings, or reports, which
       are due or  required  to be filed by it prior to the date hereof and have
       paid or made adequate provision in the Silver River Financial  Statements
       for the  payment of all taxes,  fees,  or  assessments  which have or may
       become due  pursuant to such  returns,  filings or reports or pursuant to
       any  assessments  received.  Neither  Silver  River  nor  Merger  Sub  is
       delinquent or obligated for any tax,  penalty,  interest,  delinquency or
       charge and there are no tax liens or  encumbrances  applicable  to either
       corporation.  Neither  Silver  River nor Merger Sub is deemed to be an "S
       Corporation" as defined by Internal Revenue Code of 1986, as amended.
       (h) As of the date of this Agreement,  Silver River's  authorized capital
       stock consists solely of 100,000,000  shares of common stock,  $0.001 par
       value, of which 1,999,975  shares are presently  issued and  outstanding.
       Prior to the Closing, Silver River will have outstanding 1,999,975 shares
       of common stock (prior to the Forward  Stock Split) and no other  capital
                                      -12-
       stock.  Prior to the Closing,  Silver River will amend its Certificate of
       Incorporation  to  increase  its  authorized  capitalization  to  include
       10,000,000  shares of "blank check" preferred stock, and to reflect the 2
       shares  for 1 share  forward  stock  split  to be  effected  prior to the
       Closing.  Merger Sub's capitalization consists solely of 1,000 authorized
       shares of $0.001 par value common stock ("Merger Sub's Common Stock"), of
       which  1,000  shares  are  outstanding,  all of which are owned by Silver
       River,  free  and  clear  of all  liens,  claims  and  encumbrances.  All
       outstanding  shares of common  stock of Silver  River and Merger Sub are,
       and will be at the Closing,  duly authorized,  validly issued, fully paid
       and  nonassessable.   There  are  no  existing  options,  calls,  claims,
       warrants,  preemptive rights,  registration  rights or commitments of any
       character  relating  to the  issued or  unissued  capital  stock or other
       securities of either Silver River or Merger Sub.
       (i) The financial records,  minute books, and other documents and records
       of Silver River and Merger Sub have been made available to BioForce prior
       to the Closing The records and  documents  of Silver River and Merger Sub
       that have been  delivered  to  BioForce  constitute  all of the  material
       records and  documents of Silver River and Merger Sub that they are aware
       of or that are in their  possession or in the  possession of Silver River
       or Merger Sub.
       (j)  Neither  Silver  River nor Merger Sub has  materially  breached  any
       material  agreement  to which  it is or has  been a  party.  Prior to the
       execution of the Agreement,  Silver River has given to BioForce copies or
       access to all material contracts,  commitments and/or agreements to which
       Silver River is a party. There are no currently existing  agreements with
       any affiliates,  related or controlling persons or entities. Silver River
       has no leasehold interest or other ownership interest, and no obligations
       under any real estate or any mining claims.
       (k)  Silver  River  has  complied  with all  provisions  relating  to the
       issuance of shares and for the registration  thereof under the Securities
       Act and all applicable state  securities  laws, or appropriate  exemption
       from  registration  therefrom.  To the best of Silver River's  Knowledge,
       there are no  outstanding,  pending or  threatened  stop  orders or other
       actions or  investigations  relating thereto  involving federal and state
       securities laws.
       (l) Silver  River  currently  has no, and for the past five years has not
       had, any employees, consultants or independent contractors other than its
       attorneys, accountants and transfer agent. ▇▇▇▇▇ ▇▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇ ▇▇▇▇▇
       and ▇▇▇▇▇ ▇▇▇▇▇ are, and will be at the Closing,  the sole  directors and
       sole executive  officers of Silver River, and ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ and ▇▇▇▇▇ ▇▇
       ▇▇▇▇▇  will be at the  Closing  the sole  directors  and  sole  executive
       officers of Merger Sub.
       (m)  Silver  River and  Merger Sub have,  and at the  Closing  will have,
       disclosed  in  writing  to  BioForce  all  events,  conditions  and facts
       materially affecting the business,  financial  conditions,  including any
       liabilities,  contingent or otherwise, or results of operations of either
       Silver River or Merger Sub, since September 30, 2005.
       (n) To Silver River's  Knowledge,  Silver River was originally  organized
       for the  purposes  of, and with a  specific  plan for the  ownership  and
       operations  of mining  claims.  Subsequently,  Silver  River  revised its
       business  to  seeking   potential   operating   businesses  and  business
       opportunities with the intent to acquire or merge with such businesses.
       (o) To Silver River's knowledge,  all information  regarding Silver River
                                      -13-
       which has been provided to BioForce by Silver River,  or set forth in any
       document or other communication,  disseminated to any former, existing or
       potential  stockholders  of Silver River, to the public or filed with the
       SEC or any state securities regulators or authorities, is true, complete,
       accurate in all material respects, not misleading, and was and is in full
       compliance with all securities laws and regulations. Without limiting the
       generality of the foregoing, Silver River has filed all required reports,
       schedules,  forms,  statements and other documents with the SEC since the
       filing of its registration  statement on Form 10-SB on December 14, 2004,
       including  all filed  reports,  schedules,  forms,  statements  and other
       documents  whether or not  required  (the "SEC  Documents").  As of their
       respective  dates,  the SEC Documents  complied in all material  respects
       with the  requirements  of the Securities Act or the Securities  Exchange
       Act of 1934, as amended (the "Exchange Act"), as the case may be, and the
       rules and regulations of the SEC promulgated thereunder applicable to the
       SEC Documents. Except to the extent that information contained in any SEC
       Document has been revised or  superseded  by a later filed SEC  Document,
       none of the SEC  Documents  contains  any untrue  statement of a material
       fact or omits to state any material fact required to be stated therein or
       necessary  in  order  to make  the  statements  therein,  in light of the
       circumstances  under which they were made, not misleading.  The financial
       statements  of Silver River  included in the SEC  Documents  are true and
       complete and comply as to form in all material  respects with  applicable
       accounting  requirements  and the published  rules and regulations of the
       SEC with respect thereto.
       (p) To  Silver  River's  Knowledge,  Silver  River  is and  has  been  in
       compliance  with,  and Silver River has conducted  any business  owned or
       operated by it in compliance with, all applicable laws, orders, rules and
       regulations of all governmental bodies and agencies, including applicable
       securities  laws and  regulations,  including,  but not  limited  to, the
       ▇▇▇▇▇▇▇▇-▇▇▇▇▇  Act of 2002,  and  environmental  laws  and  regulations,
       except where such  noncompliance has and will have, in the aggregate,  no
       material  adverse  effect.  Silver River has not  received  notice of any
       noncompliance  with  the  foregoing,  nor is it aware  of any  claims  or
       threatened claims in connection therewith. To its Knowledge, Silver River
       has  never   conducted   any   operations  or  engaged  in  any  business
       transactions  of a material nature other than as set forth in the reports
       Silver River has previously filed with the SEC.
       (q)  The  certificates  of the  Chief  Executive  Officer  and  Principal
       Accounting Officer of Silver River required by Rules 13a-14 and 15d-14 of
       the  Exchange Act or Section 906 of the  ▇▇▇▇▇▇▇▇-▇▇▇▇▇  Act of 2002 with
       respect to the SEC Documents,  as applicable,  are true and correct as of
       the date of this  Agreement as they relate to a particular  SEC Document,
       as  though  made as of the  date  of this  Agreement.  Silver  River  has
       established  and  maintains  disclosure  controls  and  procedures,   has
       conducted the procedures in accordance with their terms and has otherwise
       operated in  compliance  with the  requirements  under  Rules  13a-15 and
       15d-15 of the Exchange Act.
       (r) Except as and to the extent specifically  disclosed in this Agreement
       and as may be specifically  disclosed or reserved against as to amount in
       the  latest  balance  sheet  contained  in  the  Silver  River  Financial
       Statements,  there is no basis for any assertion  against Silver River of
       any material liabilities or obligations of any nature,  whether absolute,
       accrued,  contingent  or  otherwise  and  whether  due or to become  due,
       including,   without  limitation,  any  liability  for  taxes,  including
       e-commerce  sales or other taxes,  interest,  penalties and other charges
       payable with respect thereto.  Neither the execution and delivery of this
       Agreement nor the  consummation of the transactions  contemplated  hereby
       will
                                      -14-
             (i)    result in any payment,  whether severance pay,  unemployment
                    compensation or otherwise, becoming due from Silver River to
                    any  person or  entity,  including  without  limitation  any
                    employee, director, officer;
            (ii)    increase  any  benefits  otherwise  payable to any person or
                    entity, including without limitation any employee, director,
                    officer or affiliate; or
             (iii)  result in the acceleration of the time of payment or vesting
                    of any such benefits.
       (s) To Silver River's  Knowledge,  no aspect of Silver River's  business,
       operations  or  assets  is of  such a  character  as  would  restrict  or
       otherwise  hinder or impair Silver River from carrying on the business of
       Silver  River  as it is  presently  being  conducted  and as  anticipated
       following consummation of the Merger.
       (t) To Silver River's  Knowledge,  other than  retention of  accountants,
       attorney,  and  transfer  agent,  Silver  River  has no other  contracts,
       commitments,  arrangements,  or understandings  relating to its business,
       operations, financial condition, prospects or otherwise.
       (u) None of Silver River,  Merger Sub or any other affiliate  thereof has
       or  maintains  any  employee  benefit,   bonus,  incentive  compensation,
       profit-sharing,  equity,  stock bonus,  stock option,  stock appreciation
       rights,   restricted  stock,  other  stock-based   incentive,   executive
       compensation  agreement,  employment  agreement,  deferred  compensation,
       pension,  stock purchase,  employee stock  ownership,  savings,  pension,
       retirement,      supplemental     retirement,      employment     related
       change-in-control,   severance,  salary  continuation,   layoff,  welfare
       (including, without limitation,  health, medical,  prescription,  dental,
       disability, salary continuation, life, accidental death, travel accident,
       and other insurance),  vacation,  holiday, sick leave, fringe benefit, or
       other benefit plan, program, or policy, whether qualified or nonqualified
       and any trust,  escrow, or other agreement related thereto,  covering any
       present or former employees, directors, or their respective dependents.
       (v) There are no actions,  proceedings or  investigations  pending or, to
       Silver  River's   Knowledge  after  making   appropriate   investigation,
       threatened before any federal or state environmental  regulatory body, or
       before any federal or state court, alleging noncompliance by Silver River
       or any  predecessor  in  interest  with the  Comprehensive  Environmental
       Response,  Compensation and Liability Act of 1990 ("CERCLA") or any other
       Environmental Laws. To Silver River's Knowledge after due investigation;
             (i)    there is no  reasonable  basis  for the  institution  of any
                    action,  proceeding or  investigation  against  Silver River
                    under any Environmental Law;
            (ii)    Silver River is not responsible  under any Environmental Law
                    for any release by any person at or in the  vicinity of real
                    property of any hazardous  substance (as defined by CERCLA),
                    caused by the spilling, leaking, pumping, pouring, emitting,
                    emptying,   discharging,   injecting,   escaping,  leaching,
                    dumping or disposing of any such  hazardous  substance  into
                    the environment;
           (iii)    Silver  River  is  not  responsible  for  any  costs  of any
                    remedial  action  required  by virtue of any  release of any
                    toxic or hazardous substance,  pollutant or contaminant into
                    the environment including, without limitation, costs arising
                    from security fencing, alternative water supplies, temporary
                    evacuation  and  housing  and  other  emergency   assistance
                    undertaken by any environmental regulatory body;
                                      -15-
            (iv)    Silver River is in material  compliance  with all applicable
                    Environmental Laws; and
             (v)    no real property,  now or in the past, used, owned,  managed
                    or  controlled  by  Silver  River   contains  any  toxic  or
                    hazardous  substance  including,   without  limitation,  any
                    asbestos,  PCBs or petroleum  products or  byproducts in any
                    form,  the  presence,  location  or  condition  of which (x)
                    violates any Environmental  Law, or (y) cannot be cleaned by
                    ordinary reclamation procedures customary in the oil and gas
                    industry.
       For  purposes  of this  Agreement,  "Environmental  Laws"  will  mean any
       federal, state, local or municipal statute,  ordinance or regulation,  or
       order,  ruling or other decision of any court,  administrative  agency or
       other  governmental  authority  pertaining  to the  release of  hazardous
       substances (as defined in CERCLA) into the environment.
       (w) To Silver River's Knowledge,  no representation or warranty by Silver
       River  or  Merger  Sub  contained  in  this  Agreement  and no  statement
       contained in any certificate,  schedule or other communication  furnished
       pursuant to or in connection with the provisions hereof, contains or will
       contain  any  untrue  statement  of a  material  fact or omits to state a
       material  fact  necessary  in order to make the  statements  therein  not
       misleading. Except as specifically indicated elsewhere in this Agreement,
       all documents  delivered by Silver River in connection herewith have been
       and will be complete originals, or exact copies thereof.
       SECTION 6 Closing.  The Closing of the transactions  contemplated  herein
will take  place on such date (the  "Closing")  as  mutually  determined  by the
parties hereto,  but no later than five (5) days after all conditions  precedent
have been satisfied or waived and all required  documents  have been  delivered.
The parties will use their reasonable commercial efforts to cause the Closing to
occur on or before February 15, 2006. The "Effective Time of the Merger" will be
that date and time  specified in the  Certificate of Merger as the date on which
the Merger will become effective.
       SECTION 7 Actions Prior to Closing.
       (a) Prior to the Closing,  BioForce on the one hand, and Silver River and
       Merger  Sub  on  the  other   hand,   will  be   entitled  to  make  such
       investigations of the assets, properties,  business and operations of the
       other party and to examine the books,  records,  tax  returns,  financial
       statements and other  materials of the other party as such  investigating
       party  deems   necessary  in  connection  with  this  Agreement  and  the
       transactions  contemplated hereby. Any such investigation and examination
       will be conducted at reasonable times and under reasonable circumstances,
       and the parties hereto will cooperate fully therein.  The representations
       and warranties contained in this Agreement will not be affected or deemed
       waived by  reason of the fact that  either  party  hereto  discovered  or
       should  have  discovered  any  representation  or warranty is or might be
       inaccurate  in any  respect.  Until the Closing,  the parties  hereto and
       their  respective  affiliates will keep  confidential and will not use in
       any  manner  inconsistent  with  the  transactions  contemplated  by this
       Agreement any information or documents obtained from the other concerning
       its assets,  properties,  business or operations. If the Closing will not
       occur  for any  reason  (including,  without  limitation,  pursuant  to a
       termination of this  Agreement),  the parties hereto and their respective
       affiliates  will not  disclose,  nor use for their own benefit,  any such
       information or documents  obtained from the other, in either case, unless
       and to the extent
                                      -16-
             (i)    readily ascertainable from public or published  information,
                    or trade sources;
            (ii)    received  from a third party not under an obligation to such
                    BioForce or Silver  River,  as the case may be, to keep such
                    information confidential; or
           (iii)    required by any applicable  law,  rule,  regulation or court
                    order.
       If the  Closing  does not occur for any  reason,  each of the parties and
       their  respective  affiliates  will  promptly  return or destroy all such
       confidential information and compilations thereof as is practicable,  and
       will certify such destruction or return to the other party.
       (b) Prior to the Closing,  any written news releases or public disclosure
       by either party  pertaining  to this  Agreement  will be submitted to the
       other  party  for its  review  and  approval  prior  to such  release  or
       disclosure, provided, however, that
             (i)    such approval will not be unreasonably withheld, and
            (ii)    such review and approval will not be required of disclosures
                    required to comply, in the judgment of counsel, with federal
                    or state securities or corporate laws or policies.
       (c) Prior to the  Effective  Time of the Merger,  Silver River will amend
       its  Certificate  of   Incorporation  in  the  form  attached  hereto  as
       Attachment "A" to (i) increase its authorized  capitalization  to include
       10,000,000  shares of "blank  check"  preferred  stock,  and (ii)  change
       Silver River's corporate name to BioForce Nanosciences Holdings, Inc.
       (d)  Except as  contemplated  by this  Agreement,  there will be no stock
       dividend,  stock  split,  recapitalization,  or  exchange  of shares with
       respect to or rights issued in respect of Silver River common stock after
       the date  hereof and there will be no  dividends  or other  distributions
       paid on Silver River's  common stock after the date hereof,  in each case
       through and including the Effective Time of the Merger.  Silver River and
       Merger Sub will conduct no business activities prior to the Closing other
       than in the  ordinary  course of business or as may be necessary in order
       to consummate the transactions contemplated hereby.
       (e) Silver River,  acting through its Board of Directors,  will authorize
       the effectuation of the 2 shares for 1 share Forward Stock Split and take
       all requisite  and  necessary  action to finalize the stock split and, in
       accordance  with  applicable law, give notice of and submit for action by
       written consent of its stockholders;
             (i)    an amendment to its Certificate of Incorporation to increase
                    the  authorized  capitalization  of Silver  River to include
                    10,000,000 shares of "blank check" preferred stock;
             (ii)   a proposal  to prepare  and  approve an employee / directors
                    incentive compensation plan and allocate 5,000,000 shares of
                    Silver  River  common  stock  to  the  plan  (the  "BioForce
                    Nanosciences Incentive Compensation Plan"); and
             (iii)  an amendment to its Certificate of  Incorporation  to change
                    Silver  River's  corporate  name  to  BioForce  Nanosciences
                    Holdings, Inc.
       (f) Silver River will take the requisite and necessary  actions to obtain
       the written consent for those actions  discussed in Section 7(e) above as
       soon as  practicable  after  the  execution  of this  Agreement  and,  as
       promptly as practicable thereafter will:
                                      -17-
             (i)    prepare  and  file  with the SEC a  preliminary  Information
                    Statement  to  be   disseminated  by  Silver  River  to  its
                    stockholders (the "Information  Statement")  relating to the
                    matters stated above;
            (ii)    take the  appropriate  action  to  obtain  and  furnish  the
                    information  required  by  the  SEC  to be  included  in the
                    definitive Information Statement; and
           (iii)    after   consultation  with  counsel  to  BioForce,   respond
                    promptly to any comments made by the SEC with respect to the
                    preliminary  Information  Statement and cause the definitive
                    Information  Statement to be mailed to its  stockholders  as
                    promptly as practicable following clearance from the SEC.
       (g) BioForce will provide to Silver River any  information  for inclusion
       in the Information  Statement which may be required under  applicable law
       and which is  reasonably  requested  by Silver  River.  Each of BioForce,
       Silver River and Merger Sub, respectively,  agree promptly to correct any
       information provided by any of them for use in the Information  Statement
       if, and to the extent that,  such  information  will have become false or
       misleading  in any material  respect and Silver River  further  agrees to
       take all  necessary  steps  to  cause  the  Information  Statement  as so
       corrected  to be  filed  with  the  SEC  and  to be  disseminated  to its
       stockholders  to the extent  required by  applicable  federal  securities
       laws.
       (h) Silver River hereby  represents  and  warrants  that the  information
       supplied or to be supplied by Silver River for inclusion or incorporation
       by reference in (i) the  Information  Statement or (ii) the Other Filings
       (as defined below) will, at the respective  times filed with the SEC and,
       in addition, in the case of the Information Statement,  as of the date it
       or any amendment or  supplement  thereto is mailed to  stockholders,  not
       contain  any untrue  statement  of a  material  fact or omit to state any
       material fact required to be stated therein or necessary in order to make
       the statements  therein,  in light of the circumstances  under which they
       are made, not  misleading.  The  Information  Statement will comply as to
       form in all material  respects with the  requirements of the Exchange Act
       and the rules and  regulations  promulgated  thereunder.  BioForce hereby
       represents and warrants that the  information  supplied or to be supplied
       by  BioForce  for  inclusion  or   incorporation   by  reference  in  the
       Information  Statement or Other  Filings will,  at the  respective  times
       filed  with  the SEC and,  in  addition,  in the case of the  Information
       Statement,  as of the date it or any amendment or  supplement  thereto is
       mailed to  stockholders,  not contain any untrue  statement of a material
       fact or omit to state any material fact required to be stated  therein or
       necessary  in  order  to make  the  statements  therein,  in light of the
       circumstances under which they are made, not misleading.
       (i) As soon as  practicable  following  the date hereof and following the
       Effective  Time of the Merger,  each of Silver  River and  BioForce  will
       properly  prepare and file any other filings  required under the Exchange
       Act or any other  federal,  state or foreign  law  relating to the Merger
       (collectively, the "Other Filings").
       (j)  Except as  required  by law,  Silver  River and  Merger Sub will not
       voluntarily take any action that would, or that is reasonably  likely to,
       result  in any of the  conditions  to the  Merger  not  being  satisfied.
       Without  limiting the generality of the foregoing Silver River and Merger
       Sub will not take any action that would result in
                                      -18-
             (i)    any of its  representations and warranties set forth in this
                    Agreement  that are  qualified  as to  materiality  becoming
                    untrue, or
             (ii)   any of such  representations  and warranties that are not so
                    qualified becoming untrue in any material respect.
       (k) Silver River common stock will  continue to be approved for quotation
       on the OTC Bulletin Board and Silver River will have continued to satisfy
       throughout  the period from the date hereof  through the Closing Date (i)
       its filing requirements under Section 13 of the Exchange Act and (ii) the
       requirements of Rule 15c2-11 as promulgated by the SEC under the Exchange
       Act.
       SECTION 8  Conditions  Precedent  to the  Obligations  of  BioForce.  All
obligations  of BioForce under this Agreement to effect the Merger and the other
transactions contemplated hereby are subject to the fulfillment,  prior to or as
of the Closing and/or the Effective Time of the Merger,  as indicated  below, of
each of the following conditions:
       (a) The  representations  and  warranties by or on behalf of Silver River
       and Merger Sub  contained in this  Agreement,  or in any  certificate  or
       document  delivered  pursuant to the  provisions  hereof or in connection
       herewith, will be true at and as of the Closing and Effective Time of the
       Merger as though such  representations and warranties were made at and as
       of such time.
       (b) Silver River and Merger Sub will have performed and complied with, in
       all material respects, all covenants, agreements, and conditions required
       by this Agreement to be performed or complied with by them prior to or at
       the  Closing.  No  preliminary  or permanent  injunction  or other order,
       decree or ruling  issued by a court or other  governmental  authority  of
       competent  jurisdiction  nor any statute,  rule,  regulation or executive
       order  promulgated or enacted by any governmental  authority of competent
       jurisdiction  will be in effect which would have the effect of (i) making
       the consummation of the Merger illegal, or (ii) otherwise prohibiting the
       consummation of the Merger.
       (c) On or before the  Closing,  the  directors of Silver River and Merger
       Sub,  and  Silver  River as sole  stockholder  of Merger  Sub,  will have
       approved  in  accordance  with  applicable  provisions  of  the  NRS  the
       execution  and delivery of this  Agreement  and the  consummation  of the
       transactions contemplated herein, and will have approved the amendment to
       its Certificate of Incorporation and the BioForce Nanosciences  Incentive
       Compensation Plan and submitted the same for approval by the stockholders
       of Silver River, as required.
       (d) On or before  the  Closing,  Silver  River and  Merger  Sub will have
       delivered  certified  copies of resolutions of the sole  stockholder  and
       directors of Merger Sub and of the directors and  stockholders  of Silver
       River approving and authorizing:
             (i)    the  execution,  delivery and  performance of this Agreement
                    and all necessary and proper  actions to enable Silver River
                    and Merger Sub to comply with the terms of this Agreement;
            (ii)    the  election  of  BioForce's   nominees  to  the  Board  of
                    Directors  of  Silver  River  and all  matters  outlined  or
                    contemplated herein;
                                      -19-
           (iii)    the Forward Stock Split; and
            (iv)    the  submission  of  the  amendment  to the  Certificate  of
                    Incorporation  and  the  BioForce   Nanosciences   Incentive
                    Compensation  Plan to the  stockholders  of Silver River and
                    the  filing  of  the   amendment  to  the   Certificate   of
                    Incorporation upon approval thereof.
       (e) Prior to the Closing,  either (x) Silver River must receive from each
       of the BioForce  Stockholders an "investment  letter" or other equivalent
       document  providing  whether  or  not  the  investor  is  an  "accredited
       investor,"  as defined  under  Regulation  D of the  Securities  Act, and
       whether  or not  the  investor  is a  "U.S.  Person,"  as  defined  under
       Regulation S of the Securities  Act, and evidencing  that no more than 35
       BioForce Stockholders are U.S. Persons, but not accredited investors;  or
       (y) in the  alternative,  if not all  BioForce  Stockholders  deliver  an
       investment  letter  or  equivalent  document,  then the  total  number of
       BioForce  Stockholders  not  delivering a letter plus the total number of
       BioForce Stockholders delivering a letter indicating that they are a U.S.
       Person, but not an accredited investor, may not exceed 35 persons.
       Each of the BioForce  Stockholders  delivering an investment  letter must
       also agree that the shares of Silver  River  common stock to be issued in
       the Merger are, among other things
             (i)    being acquired for  investment  purposes and not with a view
                    to public resale;
            (ii)    being acquired for the investor's own account; and
           (iii)    restricted  and may not be resold,  except in reliance of an
                    exemption under the Act.
       (f) The Merger will be permitted by applicable state law and Silver River
       will have  sufficient  shares of its common stock  authorized to complete
       the  Merger  at the  Effective  Time  and the  transactions  contemplated
       hereby.
       (g) Prior to the  Closing,  Silver River will have sold a minimum of $2.5
       million in the  Private  Placement  and gross  proceeds  of at least $2.5
       million will be held in the special  escrow  account as per the terms and
       conditions set forth in the PPM.
       (h) The  amendment  to the  Certificate  of  Incorporation  and  BioForce
       Nanosciences  Incentive  Compensation Plan will have been approved by the
       requisite  vote of the  stockholders  of Silver River,  acting by written
       consent in lieu of a special  meeting  thereof,  and the amendment to the
       Certificate of Incorporation  will have been filed in accordance with the
       applicable requirements of the NRS.
       (i) At Closing,  all of the  directors  and  officers of Silver River and
       Merger  Sub will  have  resigned  in  writing  from  their  positions  as
       directors  and  executive  officers  of  Silver  River  and  Merger  Sub,
       respectively,  effective  upon the election and  appointment  of BioForce
       nominees,  and the  directors of Silver River will have taken such action
       as may be deemed  necessary  or  desirable  by  BioForce  regarding  such
       election and appointment of the BioForce nominees.
       (j) At the Closing,  all  instruments  and documents  delivered by Silver
       River or Merger Sub, including to BioForce  Stockholders  pursuant to the
       provisions hereof,  will be reasonably  satisfactory to legal counsel for
       BioForce.
                                      -20-
       (k) The capitalization of Silver River and Merger Sub will be the same as
       described in Section 5(h) above and will reflect the effectiveness of the
       amendment to the Certificate of Incorporation  increasing  Silver River's
       authorized capitalization.
       (l) The  shares of Silver  River  common  stock to be issued to  BioForce
       Stockholders at Closing will be validly issued,  nonassessable  and fully
       paid under the  applicable  provisions of the NRS and will be issued in a
       nonpublic  offering in compliance with all federal,  state and applicable
       securities laws.
       (m) BioForce will have received all necessary and required  approvals and
       consents from required parties and from its stockholders.
       (n) At the Closing,  Silver  River and Merger Sub will have  delivered to
       BioForce  an  opinion of Silver  River's  legal  counsel  dated as of the
       Closing to the effect that:
             (i)    Each of Silver  River and Merger Sub is a  corporation  duly
                    organized,  validly  existing and in good standing under the
                    laws of the jurisdiction of its incorporation;
            (ii)    Silver River and Merger Sub each has the corporate  power to
                    execute,  deliver  and perform  its  respective  obligations
                    under this Agreement;
           (iii)    This  Agreement  has  been  duly  authorized,  executed  and
                    delivered  by Silver River and Merger Sub and is a valid and
                    binding   obligation   of  Silver   River  and   Merger  Sub
                    enforceable  in  accordance  with  its  terms,   subject  to
                    applicable  bankruptcy,   insolvency,  moratorium  or  other
                    similar  laws  relating  to  creditors'  rights and  general
                    principles of equity;
            (iv)    Silver  River  and  Merger  Sub each  through  its  Board of
                    Directors and/or stockholders,  as required,  have taken all
                    corporate  action  necessary  for  performance   under  this
                    Agreement;
             (v)    The  documents  executed  by Silver  River and  delivered to
                    BioForce and BioForce  Stockholders  hereunder are valid and
                    binding in accordance  with their terms and vest in BioForce
                    Stockholders  all right,  title and  interest  in and to the
                    shares of Silver River's common stock to be issued  pursuant
                    to Section 2 hereof,  and the shares of Silver  River common
                    stock when  issued will be duly and  validly  issued,  fully
                    paid and nonassessable;
            (vi)    The shares of Silver River  common stock issued  pursuant to
                    this Agreement will be deemed  "restricted  securities"  and
                    may be sold or otherwise  transferred  upon the satisfaction
                    of the  provisions  of Rule 144,  or  pursuant  to any other
                    appropriate  exemption or registration  under the Securities
                    Act;
           (vii)    Silver  River  has  satisfied  its  reporting   requirements
                    pursuant  to  the  Exchange  Act  and  has   fulfilled   all
                    disclosure   obligations   under  such  Act  and  applicable
                    securities laws; and
          (viii)    Current  stockholders of Silver River common stock will have
                    no appraisal or similar  rights as a result of  consummation
                    of this Agreement and the transactions contemplated hereby.
                                      -21-
       (o) BioForce  will have  completed  its financial and legal due diligence
       investigation  of Silver  River  with  results  thereof  satisfactory  to
       BioForce in its sole discretion.
       Section 9  Conditions  Precedent to the  Obligations  of Silver River and
Merger Sub. All  obligations of Silver River and Merger Sub under this Agreement
are subject to the fulfillment,  prior to or at the Closing and/or the Effective
Time of the Merger, of each of the following conditions:
       (a) The  representations  and  warranties  by BioForce  contained in this
       Agreement or in any  certificate  or document  delivered  pursuant to the
       provisions  hereof or in connection  herewith,  will be true at and as of
       the  Closing  and  the  Effective  Time  of the  Merger  as  though  such
       representations and warranties were made at and as of such times.
       (b)  BioForce  will have  performed  and complied  with,  in all material
       respects,  all covenants,  agreements,  and  conditions  required by this
       Agreement  to be  performed  or  complied  with by it  prior to or at the
       Closing.
       (c) On or  before  the  Closing,  the  directors  of  BioForce  will have
       approved  in  accordance  with  applicable  state   corporation  law  the
       execution  and delivery of this  Agreement  and the  consummation  of the
       transactions  contemplated herein and will have submitted the same to the
       stockholders of BioForce.
       (d) On or before the Closing Date, BioForce will have delivered certified
       copies of  resolutions  of the  stockholders  and  directors  of BioForce
       approving and authorizing the execution, delivery and performance of this
       Agreement and the other Transaction  Documents and authorizing all of the
       necessary and proper  action to enable  BioForce to comply with the terms
       of this Agreement.
       (e) The Merger will be permitted by applicable state law.
       (f) Prior to the Closing,  either (x) Silver River must receive from each
       of the BioForce  Stockholders an "investment  letter" or other equivalent
       document  providing  whether  or  not  the  investor  is  an  "accredited
       investor,"  as defined  under  Regulation  D of the  Securities  Act, and
       whether  or not  the  investor  is a  "U.S.  Person,"  as  defined  under
       Regulation S of the Securities  Act, and evidencing  that no more than 35
       BioForce Stockholders are U.S. Persons, but not accredited investors;  or
       (y) in the  alternative,  if not all  BioForce  Stockholders  deliver  an
       investment  letter  or  equivalent  document,  then the  total  number of
       BioForce  Stockholders  not  delivering a letter plus the total number of
       BioForce Stockholders delivering a letter indicating that they are a U.S.
       Person, but not an accredited investor, may not exceed 35 persons.
       Each of the BioForce  Stockholders  delivering an investment  letter must
       also agree that the shares of Silver  River  common stock to be issued in
       the Merger are, among other things
             (i)    being acquired for  investment  purposes and not with a view
                    to public resale;
            (ii)    being acquired for the investor's own account; and
           (iii)    restricted  and may not be resold,  except in reliance of an
                    exemption under the Act.
                                      -22-
       (g) At the Closing,  all instruments and documents  delivered by BioForce
       pursuant to the  provisions  hereof will be  reasonably  satisfactory  to
       legal counsel for Silver River. (h) The  capitalization  of BioForce will
       be the same as described  in Section 4(a) hereof,  subject to exercise or
       conversion   of  currently   outstanding   exercisable   or   convertible
       securities.
       (i) Silver River will have received all necessary and requisite approvals
       and consents from required  parties and from its  stockholders,  and this
       Agreement  and the Merger  will have been  adopted  and  approved  by the
       requisite vote of BioForce Stockholders.
       (j) At the  Closing,  BioForce  will have  delivered  to Silver  River an
       opinion of BioForce's legal counsel dated as of the Closing to the effect
       that:
             (i)    BioForce  is a  corporation  validly  existing  and in  good
                    standing  under  the  laws  of  the   jurisdiction   of  its
                    incorporation;
             (ii)   This  Agreement  has  been  duly  authorized,  executed  and
                    delivered by BioForce and is a valid and binding  obligation
                    of  BioForce  enforceable  in  accordance  with  its  terms,
                    subject to applicable bankruptcy,  insolvency, moratorium or
                    other similar laws relating to creditors' rights and general
                    principles of equity;
           (iii)    BioForce,  through its Board of Directors  and  stockholders
                    has taken all corporate  action necessary for performance of
                    its obligations under this Agreement; and
            (iv)    BioForce  has the  corporate  power to execute,  deliver and
                    perform its obligations under this Agreement.
       (k)  Silver  River will have an  exemption  from  registration  under the
       Securities Act and the  securities  laws of the State of Delaware and the
       various states of residence of BioForce  Stockholders for issuance of the
       shares of Silver River common stock to be issued to BioForce Stockholders
       in the Merger.
       SECTION 10 Survival; Indemnification.
       (a) From and after the Closing,  and subject to the limitations set forth
       in this  Section 10, the SR  Stockholders  shall  indemnify  Silver River
       against and from all liabilities,  demands,  claims, actions or causes or
       action,  losses,  damages,  costs and expenses which arise out of (i) any
       breach of any  representation and warranty contained in Section 5 hereof;
       or (ii) any  breach  by the SR  Stockholders  or,  prior to the  Closing,
       Silver  River or  Merger  Sub,  of any of its  covenants  or  obligations
       contained in this Agreement.
       (b) Silver  River shall not be entitled to recover  under  Section  10(a)
       until,  and then only to the extent  that,  the total amount which Silver
       River would  recover  under Section  10(a),  but for this Section  10(b),
       exceeds $250,000 in the aggregate.
       (c) Silver  River shall not be entitled to recover  under  Section  10(a)
       unless a claim has been  asserted by written  notice,  setting  forth the
       basis for such claim, delivered to the SR Stockholders on or prior to the
       date which is two years after the Effective Time of the Merger.
                                      -23-
       (d) The SR Stockholders may satisfy any obligation under this Section 10,
       or any  portion  thereof,  by delivery  to Silver  River of  certificates
       representing  shares in Silver River,  which shall then be cancelled.  In
       any such event, such shares shall be valued at the average of the closing
       prices of Silver River common stock on the primary  exchange or market on
       which it is then  listed  or  traded  during  the ten (10)  trading  days
       immediately  preceding  the  date  on  which  such  certificates  are  so
       delivered.
       SECTION  11 Nature of  Representations.  All of the  parties  hereto  are
executing and carrying out the provisions of this  Agreement in reliance  solely
on the representations,  warranties,  covenants and agreements contained in this
Agreement  and the other  documents  delivered  at the  Closing and not upon any
representation,  warranty,  agreement, promise or information,  written or oral,
made by the other party or any other person other than as specifically set forth
herein.
       SECTION 12 Documents at Closing. At the Closing,  the following documents
will be delivered:
       (a) BioForce will deliver, or will cause to be delivered, to Silver River
the following:
             (i)    a  certificate  executed by the President of BioForce to the
                    effect  that  all  representations  and  warranties  made by
                    BioForce under this Agreement are true and correct as of the
                    Closing and as of the Effective Time of the Merger, the same
                    as though  originally given to Silver River or Merger Sub on
                    said date and that BioForce has performed or complied in all
                    material respects with all agreements and covenants required
                    by this  Agreement to be performed or complied with by it on
                    or prior to the Effective Time of the Merger;
            (ii)    a  certificate  from the state of  BioForce's  incorporation
                    dated within five business days of the Closing to the effect
                    that  BioForce  is in good  standing  under the laws of said
                    state;
           (iii)    such other instruments,  documents and certificates, if any,
                    as are required to be delivered  pursuant to the  provisions
                    of this Agreement and the other Transaction Documents;
            (iv)    executed  copy of the  Certificate  of Merger  for filing in
                    Delaware;
             (v)    certified   copies  of   resolutions   adopted  by  BioForce
                    Stockholders  and the  directors of BioForce  approving  the
                    Merger  Agreement  and  other   Transaction   Documents  and
                    authorizing the Merger;
            (vi)    the opinion of  BioForce's  counsel as  described in Section
                    9(i) above; and
           (vii)    all  other  items,  the  delivery  of which  is a  condition
                    precedent to the obligations of Silver River and Merger Sub,
                    as set forth herein.
       (b) Silver  River and Merger Sub will deliver or cause to be delivered to
BioForce:
             (i)   stock  certificates  representing  those securities of Silver
                   River to be issued as a part of the  Merger as  described  in
                   Section 2 hereof;
                                      -24-
            (ii)    a  certificate  of the  President of Silver River and Merger
                    Sub,  respectively,  to the effect that all  representations
                    and  warranties  of Silver  River and  Merger Sub made under
                    this  Agreement are true and correct as of the Closing,  the
                    same as though  originally  given to  BioForce on said date;
                    and that each of Silver  River and Merger Sub has  performed
                    or complied in all material respects with all agreements and
                    covenants  required by this  Agreement  to be  performed  or
                    complied with by it on or prior to the Effective Time of the
                    Merger;
           (iii)    certified  copies of  resolutions  adopted by Silver River's
                    and Merger  Sub's Board of  Directors  and Merger Sub's sole
                    stockholder  approving the Merger  Agreement and authorizing
                    the Merger and all related matters;  and certified copies of
                    resolutions  adopted  by the  stockholders  of Silver  River
                    approving the matters described in Section 7(e) above;
            (iv)    certificates  from  the  jurisdiction  of  incorporation  of
                    Silver River and Merger Sub dated within five  business days
                    of the  Closing  Date that each of said  corporations  is in
                    good standing under the laws of said state;
             (v)    executed  copy of the  Certificate  of Merger  for filing in
                    Nevada;
            (vi)    opinion of Silver  River's  counsel as  described in Section
                    8(m) above;
           (vii)    such other  instruments  and documents as are required to be
                    delivered pursuant to the provisions of this Agreement;
          (viii)    written  resignation of all of the officers and directors of
                    Silver River and Merger Sub; and
            (ix)    all  other  items,  the  delivery  of which  is a  condition
                    precedent to the  obligations  of BioForce,  as set forth in
                    Section 8 hereof.
       SECTION 13  Finder's  Fees.  Silver  River and Merger  Sub,  jointly  and
severally,  represent  and warrant to  BioForce,  and  BioForce  represents  and
warrants to Silver River and Merger Sub,  that none of them, or any party acting
on their behalf, has incurred any liabilities, either express or implied, to any
"broker" or "finder" or similar person in connection  with this Agreement or any
of the transactions contemplated hereby.
       SECTION 14 Additional Covenants. Between the date hereof and the Closing,
except with prior written consent of the other party:
       (a) Silver River,  Merger Sub and BioForce  will conduct  their  business
       only in the usual and ordinary  course and the character of such business
       will not be changed nor will any different business be undertaken;
       (b) No change will be made in the Certificate of  Incorporation or Bylaws
       of Silver River, Merger Sub or BioForce except as described herein;
       (c) No change will be made in the  authorized  or issued shares of Silver
       River except as set forth herein;
       (d) Neither  Silver River nor BioForce will discharge or satisfy any lien
       or encumbrance or obligation or liability, other than current liabilities
       shown  on the  financial  statements  heretofore  delivered  and  current
       liabilities  incurred since that date in the ordinary course of business;
       and
                                      -25-
       (e)  Silver  River  will not  make any  payment  or  distribution  to its
       stockholders  or purchase or redeem any shares or common  stock except as
       set forth herein.
       SECTION 15 Post-Closing Covenants. After the Closing and within four days
thereof,  BioForce will cause Silver River to timely file with the SEC a current
report on Form 8-K to report the Merger Closing. BioForce will also cause Silver
River to timely file, in connection  with the Private  Placement,  a Form D with
the SEC and such  other  reports or  fillings  that may be  required  by the SEC
and/or state regulatory agency. In addition, for a period of 12 months following
the Closing, BioForce will cause Silver River to use its commercially reasonable
efforts to timely file all reports and other  documents  required to be filed by
Silver River under the Exchange Act.
       SECTION 16  Termination.  This  Agreement  may be  terminated at any time
prior to the Effective Time of the Merger,  by action taken or authorized by the
Board of Directors of the  terminating  party or parties and, except as provided
below,  whether before or after approval of the matters  presented in connection
with the Merger by the stockholders of Silver River or BioForce:
       (a) By mutual written consent of Silver River and BioForce;
       (b) By either  Silver River or  BioForce,  if the  Effective  Time of the
       Merger  will not have  occurred  on or  before  February  15,  2006  (the
       "Termination Date"); provided,  however, that the right to terminate this
       Agreement  under this  Section  16(b) will not be  available to any party
       whose failure to fulfill any obligation under this Agreement has been the
       cause of or resulted in, the failure of the Effective  Time of the Merger
       to occur on or before the Termination Date;
       (c) By either Silver River or BioForce if any governmental entity
             (i)    will have  issued  an  order,  decree or ruling or taken any
                    other action  (which the parties  will use their  reasonable
                    best  efforts to resist,  resolve  or lift,  as  applicable)
                    permanently restraining,  enjoining or otherwise prohibiting
                    the  transaction  contemplated  by this  Agreement  and such
                    order, decree, ruling or other action will have become final
                    and nonappealable; or
            (ii)    will have  failed to issue an order,  decree or ruling or to
                    take any other  action and such denial of a request to issue
                    such order,  decree,  ruling or take such other  action will
                    have become final and  nonappealable  (which order,  decree,
                    ruling or other  action  the  parties  will have used  their
                    reasonable best efforts to obtain); if such action under (i)
                    and/or (ii) is necessary to fulfill the conditions set forth
                    in Sections 8 and 9, as applicable;
       (d)  By  either  Silver  River  or  BioForce,  if  the  approvals  of the
       respective  stockholders of either Silver River or BioForce  contemplated
       by this Agreement will not have been obtained by reason of the failure to
       obtain the required  vote of  stockholders  or consent to the  respective
       matters as to which such approval was sought;
       (e) By Silver River,  if BioForce will have breached or failed to perform
       any of its  representations,  warranties,  covenants or other  agreements
       contained  in this  Agreement,  such  that the  conditions  set  forth in
       Section 9 are not capable of being satisfied on or before the Termination
       Date; or
                                      -26-
       (f) By BioForce,  if Silver River will have breached or failed to perform
       any of its  representations,  warranties,  covenants or other  agreements
       contained  in this  Agreement,  such  that the  conditions  set  forth in
       Section 8 are not capable of being satisfied on or before the Termination
       Date.
       SECTION 17 Effect of  Termination.  In the event of  termination  of this
Agreement  by either  Silver  River or BioForce as provided in Section 16 (other
than Sections 16(e) or (f)), this Agreement will forthwith become void and there
will be no  liability or  obligation  on the part of any of the parties or their
respective officers or directors.
       SECTION  18 Miscellaneous.
       (a)  Further  Assurances.  At any time and from  time to time  after  the
       Effective  Time of the Merger,  each party will execute  such  additional
       instruments  and take such action as may be  reasonably  requested by the
       other  party to  confirm  or perfect  title to any  property  transferred
       hereunder  or  otherwise  to carry out the  intent and  purposes  of this
       Agreement.  (b) Waiver.  Any  failure on the part of any party  hereto to
       comply with any of its  obligations,  agreements or conditions  hereunder
       may be waived in  writing by the party (in its sole  discretion)  to whom
       such compliance is owed.
       (c) Amendment. This Agreement may be amended only in writing as agreed to
       by all parties hereto.
       (d) Notices.  All notices and other  communications  hereunder will be in
       writing and will be deemed to have been given if  delivered  in person or
       sent by prepaid first class registered or certified mail,  return receipt
       requested to the last known address of the noticed party.
       (e) Headings.  The section and subsection  headings in this Agreement are
       inserted for convenience  only and will not affect in any way the meaning
       or interpretation of this Agreement.
       (f) Counterparts. This Agreement may be executed simultaneously in two or
       more counterparts,  each of which will be deemed an original,  but all of
       which together will constitute one and the same instrument.
       (g)  Binding  Effect.  This  Agreement  will be binding  upon the parties
       hereto and inure to the benefit of the parties,  their respective  heirs,
       administrators, executors, successors and assigns.
       (h) Entire Agreement. This Agreement and the attached Exhibits, including
       the  Certificate  of  Merger,  is the  entire  agreement  of the  parties
       covering  everything agreed upon or understood in the transaction.  There
       are  no  oral  promises,  conditions,  representations,   understandings,
       interpretations  or terms of any kind as conditions or inducements to the
       execution hereof.
       (i)  Severability.  If  any  part  of  this  Agreement  is  deemed  to be
       unenforceable, the balance of the Agreement will remain in full force and
       effect.
       (j)  Responsibility  and Costs.  Whether the Merger is consummated or not
       and  except  as  otherwise  set  forth  below,  all  fees,  expenses  and
       out-of-pocket costs including, but not limited to, fees and disbursements
       of counsel,  financial  advisors and accountants and expenses  associated
       with  fulfillment of the obligations set forth herein,  that are incurred
                                      -27-
       by the parties hereto will be borne solely and entirely by the party that
       has incurred  such costs and  expenses,  unless the failure to consummate
       the Merger  constitutes a breach of the terms hereof,  in which event the
       breaching  party will be responsible for all costs of all parties hereto.
       Notwithstanding  the above,  the parties  agree that BioForce will pay to
       ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇,  Attorney at Law, all reasonable legal fees, expenses
       and costs associated with the preparation and execution of this Agreement
       and all  transactions,  agreements and documents  associated  thereto and
       contemplated hereby,  including  preparation of the PPM and all requisite
       filings and reports required pursuant to the Private  Placement  depicted
       in  Section  2(g)(i)  above,  or other  financing  that may be secured by
       BioForce and/or Silver River prior to the Closing,  which amount for such
       legal fees and expenses will not exceed  $50,000.  All printing  expenses
       and ▇▇▇▇▇  filing  expenses,  will be paid by  BioForce,  and any and all
       filing fees, finders' fees, commissions, sales costs and other reasonable
       expenses  associated with the Private  Placement will be paid by BioForce
       from  proceeds  from the Private  Placement.  No other  pre-Merger  fees,
       expenses or other costs  incurred by Silver River prior to the  Effective
       Time of the Merger will be the obligation of Silver River at or following
       the Effective Time of the Merger.
       (k)  Governing  Law.  This  Agreement  will be governed and  construed in
       accordance  with the laws of the  State of  Delaware  without  regard  to
       principles of conflicts of law.
                         [Signatures on Following Page]
                                      -28-
       IN WITNESS WHEREOF,  the parties have executed this Agreement the day and
year first above written.
                                     BioForce Nanosciences, Inc.
                                     By: /s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇▇, Ph.D.
                                         ---------------------------------------
                                           ▇▇▇▇ ▇▇▇▇▇▇▇▇▇, Ph.D.
                                     Its:  Chief Executive Officer
                                     Silver River Ventures, Inc.
                                     By: /s/ ▇▇▇▇▇ ▇▇▇▇▇▇▇▇
                                         ---------------------------------------
                                           ▇▇▇▇▇ ▇▇▇▇▇▇▇▇
                                     Its:  President
                                     Silver River Acquisitions, Inc.
                                     By: /s/ ▇▇▇▇▇ ▇▇▇▇▇▇▇▇
                                         ---------------------------------------
                                           ▇▇▇▇▇ ▇▇▇▇▇▇▇▇
                                     Its:  President
                                     SR Stockholders
                                     /s/ H. ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
                                     -------------------------------------------
                                           H. ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
                                     /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇
                                     -------------------------------------------
                                           ▇▇▇▇▇▇ ▇. ▇▇▇▇▇
                                      -29-