BIOSENSOR AND ITS MANUFACTURE

摘要

The present invention is directed to a biosensor provided with an insulating base plate, an electrode system mainly consisting of a working electrode and a counter electrode formed on the insulating base plate, and a reaction layer on the electrode system. The counter electrode is partially a circular arc. The invention also provides a manufacturing method for the biosensor comprising a step to form a base by arranging leads, an electrode system, and an insulating layer on an insulating base plate, and a step to form a reaction layer mainly composed of an enzyme on the electrode system. Advantages of the present invention include easy forming of the reaction layer and prevention of delamination, whereby measuring accuracy, preservative properties and reliability of the biosensor are improved. As well, the highly efficient biosensors can be mass produced at low costs.