Kentaro Yoda, Rintaro Urakabe, Toshio Tsuchida: Enzyme electrode provided with immobilized enzyme membrane. Toyo Boseki Kabushiki Kaisha, Jones Tullar & Cooper, December 23, 1980: US04240889 (469 worldwide citation)

An enzyme electrode comprising an anode, a cathode, an immobilized enzyme membrane, and an electrolyte, which is characterized in that said membrane consists of a dense skin layer having selective hydrogen peroxide permeability and a porous layer wherein the enzyme is immobilized onto the porous lay ...