DEVELOPMENT OF A PIEZOELECTRIC IMMUNOSENSOR BY COVALENT BINDING METHOD
用共价偶联方法研制压电晶体免疫传感器

A piesoelectric immunosensor for detection of BSA and anti-BSA antibody, using APTES to immobilize the protein, is described. The optimum concentration of BSA used for immobilisation on the surface of the quartz Crystal and the blocking affeCt of the Gly to glutaraldehyde are tested. BSA spedfically binding to anti -BSA antibody can be removed by dtric add (0.2mol/L). The antibody coated Crystal can be used repeatedly, but its activity decreases.