BIOSENSOR AND PROCESS FOR PRODUCING SAME

摘要

The present invention provides a biosensor capable of measuring various blood components, in particular, the concentration of blood glucose with high accuracy even when a hematocrit level varies. The above-described object was achieved by a biosensor, which is a biosensor 10 that oxidizes a blood component with an oxidoreductase, detects an oxidation-reduction current generated by the reaction product with an electrode 104 and measures the blood component, and is characterized in that the electrode 104 is an interdigitated array electrode in which a working electrode 1042 and a counter electrode 1044 composed of a noble metal are alternately arranged, the total area of the interdigitated array electrode is from 1.8 to 4 mm2, an inter-electrode distance is less than 50 μm, an electrode width of the working electrode is from 5 to 50 μm, and an electrode width of the counter electrode is from 5 to 100 μm.

主权项

1. A biosensor which oxidizes a blood component with an oxidoreductase, detects an oxidation current generated by the reaction product with an electrode and measures the blood component, wherein
the electrode is an interdigitated array electrode in which a working electrode and a counter electrode composed of a noble metal are alternately arranged, the total area of the interdigitated array electrode is from 1.8 to 4 mm2, an inter-electrode distance is less than 50 μm, an electrode width of the working electrode is from 5 to 30 μm and an electrode width of the counter electrode is from 5 to 100 μm.