Nanosheres comprising a biocompatible polysaccharide
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United States of America Patent
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Apr 10, 2001
Grant Date -
N/A
app pub date -
Sep 26, 1997
filing date -
Mar 28, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Microspheres, having a size lower than 1.mu. and comprising a biocompatible polysaccharidic polymer, are prepared with a process comprising the precipitation of polymer induced by means of a supercritical antisolvent (SAS). These microspheres are used as vehicling agents or carriers in the preparation of pharmaceutical compositions administrable by oral, nasal, pulmonary, vaginal or rectal route. These microspheres can also be advantageously used as vehicling agent or carriers in the preparation of pharmaceutical compositions for the treatment of human diseases associated with genic defects, for the preparation of diagnostics and in the agro-alimentary industry.
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