| http://www.w3.org/ns/prov#value | - A number of classes of stabilizing agents are useful in the compositions and methods of the invention, including proteins (preferably hydrophilic proteins), nonionic detergents, polymeric surfactants (e.g., polyvinyl alcohol and polyvinyl pyrrolidone), cationic detergents, anionic detergents and fatty acids, although in certain embodiments, serum proteins (particularly bovine serum proteins), fatt
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