Biosensor, method of forming thin-film electrode, and method and apparatus for quantitative determination
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United States of America Patent
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Apr 5, 2005
Issued Date -
N/A
app pub date -
Oct 1, 2001
filing date -
Nov 15, 1999
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Abstract
The invention provides a biosensor comprising a support; a conductive layer composed of a electrical conductive material such as a noble metal, for example gold or palladium, and carbon; slits parallel to and perpendicular to the side of the support; working, counter, and detecting electrodes; a spacer which covers the working, counter, and detecting electrodes on the support; a rectangular cutout in the spacer forming a specimen supply path; an inlet to the specimen supply path; a reagent layer formed by applying a reagent containing an enzyme to the working, counter, and detecting electrodes, which are exposed through the cutout in the spacer; and a cover over the spacer. The biosensor can be formed by a simple method, and provides a uniform reagent layer on the electrodes regardless of the reagent composition.
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