Sensor chip and sensor system

G - Physics – 01 – N

Patent

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Details

G01N 27/327 (2006.01) G01N 27/26 (2006.01) G01N 27/416 (2006.01)

Patent

CA 2600433

Provided are a sensor chip which permits deterioration status of an agent applied on a reacting section of the sensor chip to be detected at the time of measuring concentration of a material to be measured, and a sensor system which can perform accurate measurement while detecting the deterioration status of the agent by using such sensor chip. In the sensor chip, two substrates facing each other and a spacer layer between the substrates are provided, a plurality of reacting sections are provided in the spacer layer, and on the surface of the substrate on the spacer layer side, an electrode system for detection is arranged to expose in the reacting section. The sensor chip is characterized in that the same agent (A) is applied on two or more reacting sections among the reacting sections, and furthermore, on at least one reacting section of the two or more reacting sections, another agent (B) which reacts with the agent (A) is applied. The sensor system is characterized in that the system is provided with a measuring means which compares current values from the sensor chip and each of the two or more reacting sections.

Cette invention concerne une puce de capteur permettant de détecter un état de dégradation d~un agent appliqué sur une zone de réaction de la puce lors d~une mesure d~une concentration de substance à mesurer, et un système de détection pouvant effectuer une mesure précise pendant la détection de l~état de dégradation de l~agent à l~aide d~une telle puce. La puce de capteur comprend deux substrats se faisant face et une couche d~espacement entre les substrats, ladite couche comprend une pluralité de zones de réaction et, sur la surface du substrat au contact de la couche d~espacement, un système d~électrodes de détection est disposé à découvert dans la zone de réaction. La puce de capteur se caractérise en ce que le même agent (A) est appliqué sur deux ou plusieurs des zones de réaction et également en ce que, sur au moins une zone de réaction parmi les précédentes, un autre agent (B) réagissant avec le premier (A) est appliqué. Le système de détection se caractérise en ce qu~il comprend un moyen de mesure qui compare les valeurs actuelles de la puce de capteur et de chacune des zones de réaction.

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