MEMBRANE-TYPE SURFACE STRESS SENSOR HAVING ANTIBODY OR ANTIGEN IMMOBILIZED THEREON, METHOD FOR PRODUCING SAME, AND IMMUNOASSAY METHOD USING SAME

摘要

A membrane-type surface stress sensor characterized in that a thin silicone membrane having an antibody or antigen immobilized thereon is supported at multiple points by a supporting member comprising a piezo-resistance element, and the deformation of the thin silicone membrane, which is induced by the binding of the antibody or antigen to an antigen or antibody in a sample solution, is detected by the piezo-resistance element so that the antigen-antibody biding can be detected or the binding amount thereof can be determined.