Microspheres for incorporation of therapeutic substances and methods of preparation thereof
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United States of America Patent
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Jun 9, 1987
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N/A
app pub date -
Feb 4, 1986
filing date -
Dec 13, 1983
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Expired
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Abstract
Novel hydrophilic protein or polypeptide microspheres prepared by dispersing an aqueous solution or dispersion of protein or polypeptide in an organic solvent solution of a high molecular weight polymer to form a stabilized dispersion of microspheres and cross-linking said microspheres with a polyfunctional cross-linking agent.
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