Biosensor, biosensor chip and biosensor device
First Claim
Patent Images
1. A biosensor device, comprising:
- a biosensor, comprising;
a working electrode;
a counter electrode;
a working electrode terminal;
a counter electrode terminal;
a working reference terminal;
a counter reference terminal;
the working electrode connected to the working electrode terminal and to the working reference terminal; and
the counter electrode connected to the counter electrode terminal and to the counter reference terminal; and
a measurement circuit connected to the biosensor for performing an assay of a fluid to determine the concentration of a substance in the fluid,wherein the measurement circuit is adapted to maintain a predetermined voltage between the working reference terminal and the counter reference terminal.
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Abstract
A biosensor includes a working electrode 101, a counter electrode 102 opposing the working electrode 101, a working electrode terminal 103 and a working electrode reference terminal 10 connected to the working electrode 101 by wires, and a counter electrode terminal 104 connected to the counter electrode 102 by a wire. By employing a structure with at least three electrodes, it is possible to assay a target substance without being influenced by the line resistance on the working electrode side.
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Citations
20 Claims
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1. A biosensor device, comprising:
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a biosensor, comprising; a working electrode; a counter electrode; a working electrode terminal; a counter electrode terminal; a working reference terminal; a counter reference terminal; the working electrode connected to the working electrode terminal and to the working reference terminal; and the counter electrode connected to the counter electrode terminal and to the counter reference terminal; and a measurement circuit connected to the biosensor for performing an assay of a fluid to determine the concentration of a substance in the fluid, wherein the measurement circuit is adapted to maintain a predetermined voltage between the working reference terminal and the counter reference terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification