Patent ID: 6830669
Filing Date: 2004-12-14
Classification: C12Q,G01N

Abstract:
A biosensor comprising a cavity into which a liquid sample is drawn by capillary phenomenon, side walls facing the cavity, a support, and electrodes formed on a surface of at least one of said side walls facing the cavity, said electrodes being operable to detect a reaction between the drawn liquid sample and a reagent, and said biosensor being operable to analyze a component in the liquid sample based on the detected reaction,wherein a surface itself of at least a portion of said side walls facing the cavity has hydrophilicity, wherein said side walls facing the cavity are made of a resin material in which a surfactant is mixed by an amount of 0.01 weight % or more of the resin material, wherein the surface of said at least one of said side walls facing the cavity on which said electrodes are formed has hydrophilicity, and wherein a surface of said support is made of a rough surface whose level is 0.001 &mgr;m to 1 &mgr;m.