Biosensor membranes composed of polymers containing heterocyclic nitrogens
First Claim
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1. A polymer complex comprising:
- a first polymer comprising an analyte responsive enzyme and a mediator, wherein the mediator is chemically bonded to the first polymer; and
a second polymer disposed on top and in contact with the first polymer, the second polymer comprising a polymer having the formula;
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Abstract
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 an electrochemical sensor, thereby improving the functioning of the electrochemical sensor over a significant range of analyte concentrations. Electrochemical sensors equipped with such membranes are also described.
96 Citations
27 Claims
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1. A polymer complex comprising:
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a first polymer comprising an analyte responsive enzyme and a mediator, wherein the mediator is chemically bonded to the first polymer; and a second polymer disposed on top and in contact with the first polymer, the second polymer comprising a polymer having the formula; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An electrochemical sensor, comprising:
a working electrode comprising a polymer complex, the polymer complex comprising; a first polymer disposed on top and in contact with the working electrode, the first polymer comprising an analyte responsive enzyme and a mediator, wherein the mediator is chemically bonded to the first polymer; and a second polymer disposed on top and in contact with the first polymer, the second polymer comprising a polymer having the formula;
Specification