Process for making organic/inorganic composites
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United States of America Patent
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Apr 7, 2009
Grant Date -
Dec 18, 2003
app pub date -
Apr 18, 2003
filing date -
Apr 18, 2002
priority date (Note) -
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Abstract
The subject invention concerns a composite comprising an organic fluid-swellable matrix, such as collagen, and mineral phase, such as calcium carbonate or phosphate mineral phase, for use as a biomimetic of bone. In another aspect, the subject invention concerns a process for making a composite involving the inclusion of acidic polymers to a supersaturated mineralizing solution, in order to induce an amorphous liquid-phase precursor to the inorganic mineral, which is then absorbed (pulled by capillary action) into the interstices of the organic matrix, and subsequently mineralizes via solidification and crystallization of the precursor phase. The present invention further concerns a method of treating a patient suffering from a bone defect by applying a biomimetic composite to the bone defect site.
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