Biosensor
First Claim
1. A biosensor comprising a substrate, a reagent layer containing a reagent, and an electrode system including a working electrode and a counter electrode, the electrode system being disposed on the substrate, and the reagent layer being formed on the electrode system,wherein the reagent layer further comprises expansive inorganic particulates and is a laminate comprising a reagent-containing layer containing the reagent and a particulate-containing layer containing the expansive inorganic particulates.
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Accused Products
Abstract
A biosensor is constituted by disposing an electrode system including a working electrode and a counter electrode on a substrate, forming an inorganic particulate-containing layer containing inorganic particulates thereon, and forming a reagent layer containing a reagent thereon. The inorganic particulates make it possible to prevent impurities in a sample from being in contact with the electrode system and being adsorbed therein, so that measurement is performed with high precision. The inorganic particulate-containing layer can be formed by applying a dispersion system of inorganic particulates and drying them, and it is preferable that the inorganic particulates are contained in the form of aggregates.
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Citations
20 Claims
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1. A biosensor comprising a substrate, a reagent layer containing a reagent, and an electrode system including a working electrode and a counter electrode, the electrode system being disposed on the substrate, and the reagent layer being formed on the electrode system,
wherein the reagent layer further comprises expansive inorganic particulates and is a laminate comprising a reagent-containing layer containing the reagent and a particulate-containing layer containing the expansive inorganic particulates.
Specification