Two-phase processing of thermosensitive polymers for use as biomaterials
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United States of America Patent
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Mar 20, 2002
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Mar 20, 2001
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Abstract
A two-step system for preparing biomaterials from polymeric precursors is disclosed. The method involves (a) shaping the polymeric precursors by inducing thermal gelation of an aqueous solution of the polymeric precursors and (b) curing the polymeric precursors by cross-linking reactive groups on the polymeric precursors to produce a cured material. The curing reaction involves either a Michael-type addition reaction or a free radical photopolymerization reaction in order to cross-link the polymeric materials. The biomaterials produced by this method have a variety of biomedical uses, including drug delivery, microencapsulation, and implantation.
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