Exhibit 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Registration Statement of Isco, Inc. on Form S-8 of our report dated October 9, 1996 appearing in the Annual Report on Form 10-K of Isco, Inc. for the year ended July 26, 1996, and to the reference to us under the heading "Experts" in the Prospectuses, which are part of such Registration Statement. DELOITTE & TOUCHE LLP Lincoln, Nebraska November 20, 1996 -7-