Biosensor
First Claim
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1. A biosensor comprising:
- an insulated base;
a hydrogen peroxide electrode formed on the insulated base,a first film which is formed on the hydrogen peroxide electrode and in which the major constituent is γ
-aminopropyltriethoxysilane;
a second film which is formed on the first film and in which the major constituent is a cellulose derivative;
a third film which is formed on the second film and in which the major constituent is an ion exchange resin having a perfluorocarbon skeleton; and
a fourth film which is formed on the third film and in which the major constituent is an organic macromolecular film incorporating an immobilized enzyme with catalytic properties for producing hydrogen peroxide.
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Abstract
A drop in measurement accuracy of biosensors, due to interferents in a measurement sample is avoided by an arrangement wherein: a hydrogen peroxide electrode 2 is formed on an insulated base 1, and then a γ-aminopropyltriethoxysilane film 3, an acetylcellulose film 4, a perfluorocarbonsulfonic acid resin film 5, an organic macromolecular film 6 incorporating an immobilized enzyme with catalytic properties, and a polyalkylsiloxane film 7, are sequentially formed on the electrode 2.
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Citations
9 Claims
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1. A biosensor comprising:
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an insulated base; a hydrogen peroxide electrode formed on the insulated base, a first film which is formed on the hydrogen peroxide electrode and in which the major constituent is γ
-aminopropyltriethoxysilane;a second film which is formed on the first film and in which the major constituent is a cellulose derivative; a third film which is formed on the second film and in which the major constituent is an ion exchange resin having a perfluorocarbon skeleton; and a fourth film which is formed on the third film and in which the major constituent is an organic macromolecular film incorporating an immobilized enzyme with catalytic properties for producing hydrogen peroxide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification