Exhibit 2.1
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                 FIRST AMENDMENT TO AGREEMENT AND PLAN OF MERGER


         This First Amendment to Agreement and Plan of Merger  ("Amendment")  is
dated  June  29,  2006  by and  among  Dauphin  Technology,  Inc.,  an  Illinois
corporation  ("Dauphin"),  GeoVax Acquisition  Corp., a Georgia  corporation and
wholly-owned  subsidiary of Dauphin ("Merger  Subsidiary"),  and GeoVax, Inc., a
Georgia corporation ("GeoVax").

         WHEREAS, the parties to this Amendment entered into a certain Agreement
and Plan of Merger dated January 20, 2006 ("Merger Agreement"); and

         WHEREAS,  the  parties  to this  Amendment  desire to amend the  Merger
Agreement as hereinafter provided;

         NOW,  THEREFORE,  in  consideration  of the premises and other good and
valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby
acknowledged, the parties to this Amendment agree as follows:

         1. All  capitalized  terms not defined herein shall have the respective
meanings assigned to them in the Merger Agreement.

         2. Section 1.4 (e) is hereby modified to read as follows:

              "(e) Immediately prior to Closing,  Dauphin will have no more than
         243,000,000  shares of Dauphin  common stock  outstanding.  Immediately
         prior to the Closing,  Dauphin will have Dauphin Convertible Securities
         issued and  outstanding  in an amount not  greater  than the amount set
         forth on Schedule 1.10.  Immediately  after the Closing,  there will be
         approximately   733,332,879   shares  of  Dauphin   Stock   issued  and
         outstanding,  not including  any shares  issued in connection  with the
         GeoVax's Convertible Securities or the Dauphin Convertible Securities."

         3. Section 1.10 is hereby modified to read as follows:

              "1.10  Dauphin  Securities  and  Dauphin  Convertible  Securities.
         Schedule 1.10 attached hereto describes all Dauphin  securities,  debts
         and other  interests that are to be converted into Dauphin Common Stock
         prior to or at the Closing.  Schedule  1.10 also  describes all Dauphin
         stock purchase  warrants (the "Dauphin  Convertible  Securities")  that
         will not be converted  prior to Closing but that will remain issued and
         outstanding according to their current terms and conditions.

              Notwithstanding anything else contained herein to the contrary, at
         the time of Closing,  exclusive of any Dauphin  securities to be issued
         in the Merger,  the number of shares of Dauphin  Common Stock shall not
         exceed  243,000,000  and the number of Dauphin  Convertible  Securities
         shall not exceed the amount set forth in Schedule 1.10."

         4.  Schedule  1.10 is deleted and replaced  with the attached  Schedule
1.10.




         5. Section 6.1 (b) is hereby modified to read as follows:

              "(b) As a condition to the  execution of this  Amendment,  Dauphin
         shall pay to GeoVax no less than $2,000,000 in net cash proceeds,  free
         and clear of any  Encumbrance,  resulting  from a private  placement of
         Dauphin's common stock or convertible notes, occurring at, or prior to,
         the Closing, as a non-refundable  deposit in furtherance of the Closing
         of  the  transaction  described  herein  and  in  satisfaction  of  the
         condition to raise any  additional  net cash proceeds from such private
         placement.  Notwithstanding  the foregoing,  Dauphin shall use its best
         efforts to raise an additional  $11,000,000 in net cash proceeds,  free
         and clear of any  Encumbrance,  resulting  from a private  placement of
         Dauphin's common stock or convertible notes, occurring at, or prior to,
         or within ninety (90) days  following  the Closing.  At any time at, or
         within ninety (90) days  following  the Closing,  Dauphin shall provide
         GeoVax  with new  signature  cards  provided by the bank where any such
         additional  funds are deposited  naming one or more designees of GeoVax
         to be the new  signatories  with  full  power  of  disposition  of such
         account from and after the Closing."


         6. Section 8.1 (a) (3) is modified to read as follows:

              "(3) if the  Closing  Conditions  have not been  satisfied  by the
         close of business on September 1, 2006;"

         7. Section 8.1 (b) (3) is modified to read as follows:

              "(3) if the  Closing  Conditions  have not been  satisfied  by the
         close of business on September 1, 2006;"

         8. This  Amendment  shall be  effective  upon  GeoVax's  receipt of the
payment  referenced in Section 5 hereof.  Except as amended  hereby,  the Merger
Agreement shall continue in full force and effect in accordance with its terms.



         IN WITNESS WHEREOF,  the parties have executed this Amendment as of the
date set forth above.

Dauphin Technology, Inc.,                   GeoVax, Inc.,
an Illinois corporation                     a Georgia corporation

By: /s/ Andrew J. Kandalepas
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President and Chief
Executive Officer
                                             By: /s/ Donald Hildebrand
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                                             President and Chief Executive
                                             Officer
GeoVax Acquisition Corp.,
a Georgia corporation

By: /s/ Andrew J. Kandalepas
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President and Chief Executive Officer