Gold-coated magnetic particles for solid-phase immunoassays: enhancing immobilized antibody binding efficiency and analytical performance.


The preparation and characterization of gold-coated magnetic particles are described for use as more efficient solid-phase materials in immunoassay development. A thin gold coating on commercial tosylated magnetic polystyrene particles (4.5 microm) is achieved via an electroless plating method involving initial reaction of the particles with Sn(II… (More)


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