Biodegradable gel
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United States of America Patent
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Aug 10, 1993
Issued Date -
N/A
app pub date -
Sep 24, 1990
filing date -
Mar 9, 1989
priority date (Note) -
Expired
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Abstract
A new gel-like composition of matter containing a complex carbohydrate with a high degree of carboxyl substitution cross-linked by an organic cross-linker has been developed. The cross-linkers have complex ring structures, e.g., polynuclear or heterocyclic compounds, which permit development of two distinct partial positive charges under conditions where a carbohydrate is negatively charged. Antibiotics are the preferred cross-linking agents and a method of sustained release of the antibodies is also disclosed.
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