SENSOR AND BIOLOGICAL SUBSTANCE DETECTION METHOD

• Main Authors: DOI TOSHIHIRO, HIROSE DAISUKE, TAKAMURA ZEN
• Format: Patent
• Language: English; Japanese
• Published: 04.01.2023
• Subjects: APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS OR TEST PAPERS THEREFOR; COMPOSITIONS THEREOF; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES; CULTURE MEDIA; ENZYMOLOGY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PHYSICS; PROCESSES OF PREPARING SUCH COMPOSITIONS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; TESTING; VINEGAR; WINE

To provide a sensor that is excellent in selectivity for a detection object and has high sensitivity and a low detection limit, and provide a biological substance detection method.SOLUTION: A sensor has a first electrode, a second electrode, a third electrode, a semiconductor film that connects the first electrode and the second electrode to each other, and a solid electrolyte membrane that covers the first electrode, the second electrode, and the semiconductor film. The solid electrolyte membrane has an exposed surface that is exposed to the outside. The third electrode is configured to be arranged at a position where, when the exposed surface of the solid electrolyte membrane is in contact with conductive liquid, the electrode can apply an electric field to the exposed surface of the solid electrolyte membrane through the conductive liquid.SELECTED DRAWING: Figure 1 【課題】検出目的物に対する選択性に優れ、かつ高感度で検出限界が低いセンサおよび生体物質検出方法を提供する。【解決手段】センサは、第１電極、第２電極、第３電極、前記第１電極と前記第２電極とを接続する半導体膜、前記第１電極と前記第２電極と前記半導体膜とを被覆する固体電解質皮膜を有し、前記固体電解質皮膜は、外部に露出する露出面を有し、前記第３電極は、前記固体電解質皮膜の前記露出面が導電性液と接触しているときに、前記導電性液を介して、前記固体電解質皮膜の前記露出面に電界を印加可能な位置に配置されるように構成されている。【選択図】図１