Abstract: A nylon matrix is partially hydrolyzed to form free amine end groups which are then linked to a protein molecule, e.g., an antigen or antibody, by a divalent radical which is the residue of a diimide molecule. The nylon carrying the protein can then be used in conventional manner in an immunoassay or an enzyme assay.
Abstract: The present invention describes an apparatus and method for conducting immunochemical reactions in a self-contained sealed unit that requires only the addition of an unknown sample and water. The apparatus comprises a test tube with at least three chambers each containing different chemicals, including a solid sphere, and separated from each other by a water-soluble barrier.
Abstract: A method of promoting the more rapid growth of an animal or plant, which comprises administering to said animal, to a food source for said animal, to a plant or to a plant habitat a growth-promoting effective amount of leupeptin. The leupeptin can be incorporated into an animal feed or supplement containing a food base. It apparently functions by inhibiting proteases which degrade proteins, and thus reduce the growth of the host.