1
                                                                      Exhibit 24

                                POWER OF ATTORNEY



     KNOW BY ALL MEN BY THESE PRESENTS, that the undersigned director of
Demegen, Inc., a Colorado Corporation, does make, constitute and appoint RICHARD
D. EKSTROM, with full power and authority his true and lawful attorney-in-fact
and agent, for him and his name, place and stead in any and all capacities, to
sign the Initial Report of Demegen, Inc. on Form 10/A for the period ended
September 30, 1998, and to file such Initial Report, so signed, with all
exhibits thereto, with the Securities and Exchange Commission, hereby further
granting unto said attorney-in-fact full power and authority to do and perform
any and all acts and things requisite and necessary to be done in and about the
premises as fully to all intents and purposes as he might or could do in person;
the undersigned hereby ratifies and confirms all that said attorney and agent,
shall do or cause to be done by virtue hereof.


     IN WITNESS WHEREOF, THE UNDERSIGNED HAS HEREUNTO SET HIS HAND AND SEAL THIS
23rd day of April, 1999.







       /s/ Jesse M. Jaynes                   (SEAL)
       --------------------------------------
       Jesse M. Jaynes, Ph.D., Director



   2


                                POWER OF ATTORNEY



     KNOW BY ALL MEN BY THESE PRESENTS, that the undersigned director of
Demegen, Inc., a Colorado Corporation, does make, constitute and appoint RICHARD
D. EKSTROM, with full power and authority his true and lawful attorney-in-fact
and agent, for him and his name, place and stead in any and all capacities, to
sign the Initial Report of Demegen, Inc. on Form 10/A for the period ended
September 30, 1998, and to file such Initial Report, so signed, with all
exhibits thereto, with the Securities and Exchange Commission, hereby further
granting unto said attorney-in-fact full power and authority to do and perform
any and all acts and things requisite and necessary to be done in and about the
premises as fully to all intents and purposes as he might or could do in person;
the undersigned hereby ratifies and confirms all that said attorney and agent,
shall do or cause to be done by virtue hereof.


     IN WITNESS WHEREOF, THE UNDERSIGNED HAS HEREUNTO SET HIS HAND AND SEAL THIS
23rd day of April, 1999.






/s/ James Colker

                                      (SEAL)
- --------------------------------------
James Colker, Director



   3


                                POWER OF ATTORNEY



     KNOW BY ALL MEN BY THESE PRESENTS, that the undersigned director of
Demegen, Inc., a Colorado Corporation, does make, constitute and appoint RICHARD
D. EKSTROM, with full power and authority his true and lawful attorney-in-fact
and agent, for him and his name, place and stead in any and all capacities, to
sign the Initial Report of Demegen, Inc. on Form 10/A for the period ended
September 30, 1998, and to file such Initial Report, so signed, with all
exhibits thereto, with the Securities and Exchange Commission, hereby further
granting unto said attorney-in-fact full power and authority to do and perform
any and all acts and things requisite and necessary to be done in and about the
premises as fully to all intents and purposes as he might or could do in person;
the undersigned hereby ratifies and confirms all that said attorney and agent,
shall do or cause to be done by virtue hereof.


     IN WITNESS WHEREOF, THE UNDERSIGNED HAS HEREUNTO SET HIS HAND AND SEAL THIS
23rd day of April, 1999.






/s/ Donald A. Guthrie

                                      (SEAL)
- --------------------------------------
Donald A. Guthrie, Ph.D., Director



   4


                                POWER OF ATTORNEY



     KNOW BY ALL MEN BY THESE PRESENTS, that the undersigned director of
Demegen, Inc., a Colorado Corporation, does make, constitute and appoint RICHARD
D. EKSTROM, with full power and authority his true and lawful attorney-in-fact
and agent, for him and his name, place and stead in any and all capacities, to
sign the Initial Report of Demegen, Inc. on Form 10/A for the period ended
September 30, 1998, and to file such Initial Report, so signed, with all
exhibits thereto, with the Securities and Exchange Commission, hereby further
granting unto said attorney-in-fact full power and authority to do and perform
any and all acts and things requisite and necessary to be done in and about the
premises as fully to all intents and purposes as he might or could do in person;
the undersigned hereby ratifies and confirms all that said attorney and agent,
shall do or cause to be done by virtue hereof.


     IN WITNESS WHEREOF, THE UNDERSIGNED HAS HEREUNTO SET HIS HAND AND SEAL THIS
23rd day of April, 1999.






/s/ John Bridwell

                                      (SEAL)
- --------------------------------------
John Bridwell, Director



   5


                                POWER OF ATTORNEY



     KNOW BY ALL MEN BY THESE PRESENTS, that the undersigned director of
Demegen, Inc., a Colorado Corporation, does make, constitute and appoint RICHARD
D. EKSTROM, with full power and authority his true and lawful attorney-in-fact
and agent, for him and his name, place and stead in any and all capacities, to
sign the Initial Report of Demegen, Inc. on Form 10/A for the period ended
September 30, 1998, and to file such Initial Report, so signed, with all
exhibits thereto, with the Securities and Exchange Commission, hereby further
granting unto said attorney-in-fact full power and authority to do and perform
any and all acts and things requisite and necessary to be done in and about the
premises as fully to all intents and purposes as he might or could do in person;
the undersigned hereby ratifies and confirms all that said attorney and agent,
shall do or cause to be done by virtue hereof.


     IN WITNESS WHEREOF, THE UNDERSIGNED HAS HEREUNTO SET HIS HAND AND SEAL THIS
23rd day of April, 1999.






/s/ Alfonse Love-Cordero

                                      (SEAL)
- --------------------------------------
Alfonso Lovo-Cordero, LL.D, Director



   6


                                POWER OF ATTORNEY



     KNOW BY ALL MEN BY THESE PRESENTS, that the undersigned director of
Demegen, Inc., a Colorado Corporation, does make, constitute and appoint RICHARD
D. EKSTROM, with full power and authority his true and lawful attorney-in-fact
and agent, for him and his name, place and stead in any and all capacities, to
sign the Initial Report of Demegen, Inc. on Form 10/A for the period ended
September 30, 1998, and to file such Initial Report, so signed, with all
exhibits thereto, with the Securities and Exchange Commission, hereby further
granting unto said attorney-in-fact full power and authority to do and perform
any and all acts and things requisite and necessary to be done in and about the
premises as fully to all intents and purposes as he might or could do in person;
the undersigned hereby ratifies and confirms all that said attorney and agent,
shall do or cause to be done by virtue hereof.


     IN WITNESS WHEREOF, THE UNDERSIGNED HAS HEREUNTO SET HIS HAND AND SEAL THIS
23rd day of April, 1999.







/s/ Konrad M. Weis                    (SEAL)
- --------------------------------------
Konrad M. Weis, Ph.D., Director