Granular polymer composites - useful for immobilisation of antigens or antibodies

摘要

The following are claimed: (A) granular polymer composites comprising polymeric granules coated with a calcium phosphate (CP) cpd., at least a part of the CP cpd. penetrating the polymer granules; and (B) a diagnostic agent comprising: (a) a granular polymer composite comprising a plurality of dyed polymeric granules (which have a coated surface of a CP cpd.); and (b) an antigen or antibody adsorbed and immobilised on the composite, the unadsorbed sites of the composite body being treated with a blocking agent.