Optimization of Communication Protocols by stochastic Delay Mechanisms

A method is provided which is highly sensitive and specific, and is suitable as a clinical test for the determination of physiological substances and trace components in humoral fluid. The method employs a conjugate of an enzyme capable of acting on a water-insoluble macromolecular substance and an antibody against the ligand (1) to be measured or a ligand (2) having an antigenic determinant common to one of the antigenic determinant(s) of the ligand (1). In the method of the invention, steric hindrance of the conjugate is emphasized by the enzyme reaction which is carried out at the boundary between solid phase and liquid phase.