Process for preparing biodegradable submicroscopic particles containing a biologically active substance and their use
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United States of America Patent
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Dec 18, 1984
Issued Date -
N/A
app pub date -
Feb 17, 1982
filing date -
Jul 19, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Biodegradable particles, with a diameter smaller than 500 nanometers, formed by the micellar polymerization of an alkyl-cyano-acrylate where the term 'alkyl' means a lower alkyl radical having 1 to 4 carbon atoms and containing a biologically active substance. Also provided are processes for making pharmaceutical compositions containing the biodegradable particles and using the particles in pharmaceutical and diagnostic applications.
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