Novel membranes comprising various polymers containing heterocyclic nitrogen groups are described. These membranes are usefully employed in electrochemical sensors, such as amperometric biosensors. More particularly, these membranes effectively regulate a flux of analyte to a measurement electrode in...http://www.google.com.au/patents/US20030042137?utm_source=gb-gplus-sharePatent US20030042137 - Biosensor membranes composed of polymers containing heterocyclic nitrogens
