POWER OF ATTORNEY

     Know all these presents, that the undersigned, David A.
Zopf, M.D., hereby constitutes and appoints each of A. Brian
Davis, Debra J. Poul, Wendy L. Nagy and J. Peter Wolf, signing
singly, the undersigned's true and lawful attorney-in-fact to:

     1.   Execute for an on behalf of the undersigned, in the
       undersigned's capacity as an officer and/or director of Neose
       Technologies, Inc. (the "Company"), Forms 3, 4, and 5 (and any
       amendments thereto) in accordance with Section 16(a) of the
       Securities Exchange Act of 1934 and the rules thereunder;

     2.   Do and perform any and all acts for and on behalf of the
       undersigned that may be necessary or desirable to complete and
       execute any such Form 3, 4, or 5 and timely file such form with
       the United States Securities and Exchange Commission and any
       stock exchange or similar authority; and

     3.   Take any other action of any type whatsoever in connection
       with the foregoing that, in the opinion of such attorney-in-fact,
       may be of benefit to, in the best interest of, or legally
       required by, the undersigned, it being understood that the
       documents executed by such attorney-in-fact on behalf of the
       undersigned pursuant to this Power of Attorney shall be in such
       form and shall contain such terms and conditions as such attorney-
       in-fact may approve in such attorney-in-fact's discretion.

     The undersigned hereby grants to each such attorney-in-fact
full power and authority to do and perform any and every act and
thing whatsoever requisite, necessary, or proper to be done in
the exercise of any of the rights and powers herein granted, as
fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution
or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of
this power of attorney and the rights and powers herein granted.
The undersigned acknowledges that the foregoing attorneys-in-fact
may rely entirely on information furnished orally or in writing
by the undersigned, or a representative of the undersigned, to
such attorney-in-fact. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the
request of the undersigned, are not assuming, nor is the Company
assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934. This
Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with
respect to the undersigned's holdings of and transactions in
securities issued by the Company, unless earlier revoked by the
undersigned in a signed writing delivered to the foregoing
attorneys-in-fact at the Company's address.

     IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 6th day of August, 2002.


                              /s/ David A. Zopf
                              David A. Zopf, M.D.