Patent ID: 7585400
Filing Date: 2009-09-08
Classification: C12Q,G01N

Abstract:
1. A chip for measuring an amount of target substances electrochemically using an immunoassay, the chip comprising: electrodes composed of a working electrode and a counter electrode, or of a working electrode, a counter electrode and a reference electrode, wherein, in the chip, at least one selected from NADP and NADPH, malate dehydrogenase, a substrate of malate dehydrogenase, potassium ferricyanide and diaphorase are immobilized, and wherein the malate dehydrogenase, the at least one selected from NADP and NADPH, and the substrate are mixed and immobilized together, and wherein the malate dehydrogenase and the potassium ferricyanide are immbolized so as to leave a space in between.