Glucose sensor
First Claim
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1. An enzyme-containing membrane comprising a semi-interpenetrating polymer network of fibrillated polytetrafluoroethylene and a silicon compound wherein the network is infiltrated with an enzyme.
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Abstract
A sensor that is capable of accurately measuring glucose and other analytes in low oxygen environments is provided. The sensor employs an enzyme-containing membrane comprising a semi-interpenetrating polymer network which is infiltrated by an enzyme. The enzyme-containing membrane increases oxygen transport to the enzyme such that oxygen is not a limiting factor in the oxidation taking place at the enzyme.
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31 Claims
- 1. An enzyme-containing membrane comprising a semi-interpenetrating polymer network of fibrillated polytetrafluoroethylene and a silicon compound wherein the network is infiltrated with an enzyme.
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11. A membrane system comprising:
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an outer membrane; and an inner membrane, wherein the inner membrane is an enzyme-containing membrane having a semi-interpenetrating polymer network of fibrillated polytetrafluoroethylene and a silicon compound, wherein the network is infiltrated with an enzyme.
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22. A glucose sensor comprising:
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a membrane system having an outer membrane and an inner membrane, wherein the inner membrane is an enzyme-containing membrane which includes a semi-interpenetrating polymer network of fibrillated polytetrafluoroethylene and a silicon compound, wherein the network is infiltrated by an enzyme, and wherein the outer membrane restricts the flow of glucose into the inner membrane; an electrode which oxidizes hydrogen peroxide; and wherein the inner membrane is disposed between the outer membrane and the electrode. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification