biosensor

Abstract

Abstract PURPOSE:To obtain a small-sized biosensor which can measure easily and quickly the specific component in a living body with high accuracy by providing a measuring electrode, counter electrode and reference electrode on an insulating substrate and coating the electrode system with a porous body contg. oxidation reduction enzyme and specific dye. CONSTITUTION:Platonum is embedded into an insulating substrate 10 consisting of a PVC resin to provide a measuring electrode 11, a counter electrode 12 and a reference electrode 13. A nonwoven nylon fabric 14 is provided to cover the electrode system. The fabric carries glucose oxidase as oxidation reduction enzyme and potassium ferricyanide as an oxidation type dye to be conjugated to the oxidation reduction enzyme in a dry state after the fabric is impregnated therein. A blood is added to such sensor and the voltage of the measuring electrode 11 is swept (0-0.5V) on the basis of the electrode 13 then the oxidation current is measured, by which the concn. of the glucose in the blood is detected. The small-sized biosensor which can measure easily and stably the specific component in a living body with high accuracy is thus obtd.

Inventors

• 👤 Mariko Kawaguri
• 👤 真理子 河栗
• 👤 Shiro Nankai
• 👤 史朗 南海
• 👤 Takashi Iijima
• 👤 孝志 飯島

Bibliographic Details