Patent ID: 7959791
Filing Date: 2011-06-14
Classification: C12Q

Abstract:
1. An enzyme sensor for determining the concentration of an analyte in a fluid sample, comprising an electrode, at least one enzyme layer and a cover membrane layer for the at least one enzyme layer, wherein the cover membrane comprises at least one porous polymeric material having an average pore size in the range of 10 to 250 nm and a pore density in the range of 4×10 wherein the outer surface and pore mouths of at least one face of the cover membrane are covered by a continuous layer of a hydrophilic polymer extending over the outer surface and pore mouths, and wherein the hydrophilic polymer is selected from hydrophilic polyurethanes and hydrophilic poly(meth)acrylates having a water content when wetted in the range of 10 to 95% (w/w).