Panasonic Corporation

Panasonic Healthcare Holdings Co., Ltd.

Shinki Kojima

Tomohiro Yamamoto

Nobuhiko Ozaki

Shuhei Tanaka

Tomoharu Yamamura

Setuko Yano

Kazumasa Miyamoto

Kanako Matsushima

Junko Ikeda

Kunihiko Machida

The present invention relates to a biosensor, and it is an object thereof to suppress degradation by light. A biosensor () comprises a blood component measurement working electrode (), a blood component measurement counter electrode (), and a reagent component (). The reagent component () is provided near the blood component measurement working electrode () and the blood component measurement counter electrode (). The reagent component () includes a mediator, an oxidoreductase, and a substance that absorbs light with a wavelength of 400 to 500 nm. An insulated substrate () is provided, on the surface of which is disposed the blood component measurement working electrode () and/or the blood component measurement counter electrode (). The reagent component () is disposed on the one or more electrodes on the insulated substrate ().

Biosensor and method for manufacturing biosensor

To provide a method of analyzing a lipid component in serum which comprises: a first total acid concentration measurement step of electrochemically measuring the total acid concentration in a serum-containing analyte solution in the presence of a water-soluble quinone derivative; a fatty acid production step of allowing a lipid component in the serum to react with one or more kinds of enzymes which specifically act on the lipid component to produce a fatty acid; a second total acid concentration measurement step of electrochemically measuring the total acid concentration in the serum-containing analyte solution in the presence of the water-soluble quinone derivative; and a lipid component concentration calculation step of calculating the serum concentration of the lipid component based on the total acid concentration measured in the first total acid concentration measurement step and the total acid concentration measured in the second total acid measurement step.

Method and device for analyzing lipid component contained in serum

Provided is a measuring chip, which can spot a specimen liquid of a minute quantity for an immune agglutination easily and precisely to the measuring chip and which can prevent the flow of the specimen liquid and the contamination of the specimen. The measuring chip comprises at least two substrates, a spacer arranged between the substrates, at least one passage made of the substrates and the spacer into a hollow shape and having two open ends, counter electrodes for applying an electric field, and a specimen-spotted portion to be spotted with the specimen. The specimen-spotted portion has a structure made of a square, circular, elliptical or sector shape by that spacer. Moreover, the specimen-spotted portion has two open ends, one of which is connected to one open end of that passage.

Measuring chip

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Ehime, Japan

Shinki Kojima