Immunoreactive carriers having a novel intermediate biocompatible coating and its method of manufacture.

This invention provides an immunoreactive CARRIER ELEMENT WITH A antigen or antibody ONE PAIR OF UNION covalently attached to a biocompatible MEDIUM PROTEIN comprising a gel or polysaccharide coating the surface of a body CARRIER AND METHOD OF PRODUCING THE CARRIER immunoreactive. WHEN THE MEDIUM IS A GEL PROTEIN biocompatible, it is applied on the body surface CARRIER FOR INTERACTION hydrophobic or covalent attachment. When the medium is a polysaccharide biocompatible, it is applied on the surface of the carrier by covalent attachment. Immunoreactive CARRIER MAY BE USED IN AN ESSAY ON INVOLVING A MEMBER OF ONE PAIR OF UNION AS A MEMBER antigen or antibody ONE PAIR OF UNION IN BIOLOGICAL a test sample.