Disclosed are an immobilized enzyme film, characterized in that said film is formed using an enzyme solution prepared by adding 1 to 3 parts by weight of a 50 to 100 wt % water-soluble crosslinking agent having at least two epoxy groups in the molecule and 1 to 3 parts by weight of a 1 to 2 wt % glutaraldehyde...http://www.google.ca/patents/US5356757?utm_source=gb-gplus-sharePatent US5356757 - Immobilized enzyme film, protein immobilized film and process for forming the same
