Charged collagen particle-based delivery matrix
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United States of America Patent
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Oct 14, 1997
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N/A
app pub date -
Jun 6, 1995
filing date -
Jun 6, 1995
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Abstract
A collagen-based delivery matrix including collagen particles, wherein each of the particles has a diameter between 5 .mu.m and 850 .mu.m and, when suspended in an aqueous solution at a pH of about 7.0, has a net charge density between -20 moles/mole collagen and -500 moles/mole collagen, or between +20 moles/mole collagen and +250 moles/mole collagen. Also disclosed are methods of preparing and using such a delivery matrix.
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