Electron conducting crosslinked polyaniline-based redox hydrogel, and method of making
First Claim
1. An electrode, comprising:
- a conductive substrate and a crosslinked polymeric matrix deposited thereon comprising a polyaniline crosslinked with a polymer acid and a redox enzyme through a crosslinker.
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Abstract
A polymer matrix that may coated on an electrode is created by co-crosslinking (1) an adduct of a polyaniline formed by templated oxidative polymerization on a polymer acid; (2) a water-soluble crosslinker; and (3) a redox enzyme. The polymer matrix may be hydrated, and the absorbed water may make it permeable to, for example, glucose. The polyaniline may be polyaniline itself or a substituted polyaniline; the water-soluble crosslinker may be poly(ethylene glycol)diglycidyl ether, and the redox enzyme may be glucose oxidase. The polymer matrix may be produced by co-crosslinking (1) an adduct of an electrically conductive polymer and a polymer acid; (2) a water-soluble crosslinker; and (3) a redox enzyme in a single step at an about neutral pH, curing by drying. After hydration, the crosslinked polymer matrix may form a 3-dimensional glucose-permeable bioelectrocatalyst, catalyzing the electrooxidation of glucose.
18 Citations
17 Claims
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1. An electrode, comprising:
a conductive substrate and a crosslinked polymeric matrix deposited thereon comprising a polyaniline crosslinked with a polymer acid and a redox enzyme through a crosslinker. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
Specification