ACRYLIC COPOLYMER MEMBRANES FOR BIOSENSORS

摘要

Homogeneous membranes (20) are disclosed which are composed of acryliccopolymers and are capable of absorbing% to 50 % of their dry weight of water. The copolymers include a hydrophiliccomponent which comprises acrylicesters having a poly(ethylene oxide) substituent as part of the alcoholmoiety. The copolymers further comprisemethacrylate and/or acrylate monomer units. The membranes (20) are useful inthe fabrication of biosensors, e.g., aglucose sensor (10) intended for in vivo use. Variations in the ratios of themonomeric components make possible thefabrication of membranes which have varying permeabilities.