Patent ID: 8980074
Filing Date: 2015-03-17
Classification: C12Q,G01N,Y10T

Abstract:
1. A biosensor for quantifying a substrate in a sample liquid, the biosensor comprising: an insulating support; an electrode pattern and an identification pattern formed of an electrically conductive material on a surface of the insulating support and having a thickness from 3 nm to 100 nm; a reagent layer covering a portion of the electrode pattern; a spacer layer covering a portion of the reagent layer; and a cover on the spacer layer; wherein: the spacer layer defines a supply path for bringing the sample liquid into contact with the reagent layer; a portion of the reagent layer is in the supply path, and the supply path is narrower than the reagent layer; the electrically conductive material comprises a noble metal; the electrode pattern defines at least a working electrode and a counter electrode; a portion of the working electrode and a portion of the counter electrode are in the supply path; and no portion of the identification pattern is in the supply path.