Heterocyclic nitrogen containing polymers coated analyte monitoring device and methods of use
First Claim
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1. An electrochemical sensor, comprising:
- a working electrode comprising;
a sensing layer in contact with a conductive material of the working electrode;
a diffusion limiting membrane layer disposed over the sensing layer, wherein the diffusion limiting membrane layer comprises a crosslinker and a polymer having the formula;
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Abstract
The present invention is directed to membranes composed of heterocyclic nitrogen groups, such as vinylpyridine and to electrochemical sensors equipped with such membranes. The membranes are useful in limiting the diffusion of an analyte to a working electrode in an electrochemical sensor so that the sensor does not saturate and/or remains linearly responsive over a large range of analyte concentrations. Electrochemical sensors equipped with membranes described herein demonstrate considerable sensitivity and stability, and a large signal-to-noise ratio, in a variety of conditions.
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Citations
20 Claims
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1. An electrochemical sensor, comprising:
a working electrode comprising; a sensing layer in contact with a conductive material of the working electrode; a diffusion limiting membrane layer disposed over the sensing layer, wherein the diffusion limiting membrane layer comprises a crosslinker and a polymer having the formula; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electrode for use in a biosensor, comprising:
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a sensing layer in contact with a conductive material of the electrode, and a diffusion limiting membrane layer disposed over the sensing layer, wherein the diffusion limiting membrane layer comprises a crosslinker and a polymer having the formula; - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification