Biosensor, biosensor chip and biosensor device
AssigneePanasonic Corporation
InventorsHiroya UENO, Junji Nakatsuka
Life of this patent
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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.
Claims19
1-48. (canceled)
A measurement circuit for assaying a concentration of an assayed substance, the measurement circuit comprising:
- a voltage application circuit for generating an output voltage, the voltage application circuit comprising a first input for receiving a first voltage from external to the measurement circuit and a second input;
- and
- a voltage source for supplying a second voltage to the second input of the voltage application circuit;
- wherein the voltage application circuit generates the output voltage based on at least the first voltage and the second voltage.
A measurement circuit for assaying a concentration of an assayed substance, the measurement circuit comprising:
- a voltage application circuit for generating an output voltage, the voltage application circuit comprising a first input for receiving a first voltage from external to the measurement circuit and a second input;
- and
- a voltage source for supplying a second voltage to the second input of the voltage application circuit;
- wherein the voltage application circuit generates the output voltage such that the first voltage is substantially equal to the second voltage.
A measurement circuit for assaying a concentration of an assayed substance, the measurement circuit comprising:
- a voltage application circuit for generating an output voltage, the voltage application circuit comprising a first input for receiving a first voltage from external to the measurement circuit, wherein the first input has a high input impedance, and a second input;
- and
- a voltage source for supplying a second voltage to the second input of the voltage application circuit;
- wherein the voltage application circuit generates the output voltage such that the first voltage is substantially equal to the second voltage.
Dependencies are inferred from the claim text.