Provigate Inc.

Yoshiyuki Yanagimoto

Narushi Ito

Taira Kajisa

Mitsumi Nishi

Norikazu Katayama

Yuuya Miyazawa

A sensor chip (), to be brought close to an organism to collect a body fluid in order to chemically measure the body fluid, is configured such that a surface () to be brought close to the organism is curved.

Sensor chip, sensing apparatus, cover, body fluid collection device, and sensor

The object of the invention is to increase the detection specificity of biosensors. The present invention provides a biosensor characterized in that it comprises an identifier substance that can bind to a detection target substance and an electrode that takes the charge of said identifier substance, wherein the biosensor detects the change in the charge density of said electrode generated by the binding of said detection target substance with said identifier substance, the surface of said electrode is coated with polycatecholamine, all or a part of said electrode surface coated with polycatecholamine further has a polymer layer formed thereon which has a molecular imprint having a structure complementary to the molecular structure of the detection target substance formed therein, said polymer layer comprises said identifier substance, and said polymer layer is an ultrathin film layer.

High-sensitivity biosensor

Provided is an electrical circuit for electrochemical measurement of a solution, said electrical circuit comprising: a voltage generation circuit; an operational amplifier that has an output (OUT), a non-inverting input (+IN), and an inverting input (&#x2212;IN), wherein the output (OUT) is connected to a counter electrode (CE) in contact with the solution, the inverting input (&#x2212;IN) is connected to a reference electrode (RE) in contact with the solution, and the non-inverting input (+IN) is connected to the voltage generation circuit; a capacitor that is connected between the output (OUT) and inverting input (&#x2212;IN) and has a capacitance of 1 &#x3bc;F or greater; and a current measurement circuit that is connected to a working electrode (WE) in contact with the solution.

Growing community of inventors

Tokyo, Japan

Yoshiyuki Yanagimoto