Biosensor, biosensor chip and biosensor device

摘要

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.

主权项

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; andthe 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.