Biologically active materials
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United States of America Patent
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Nov 16, 2004
Grant Date -
N/A
app pub date -
Jul 30, 2002
filing date -
Jun 18, 1999
priority date (Note) -
Expired
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Abstract
The present disclosure concerns biologically active materials, particularly materials that comprise a biodegradeable polymer linked to a biologically active agent. The disclosure further concerns materials known as polymer-drug conjugates that typically contain a therapeutic agent, for instance a bioactive cytotoxic drug linked to a polymer backbone. The linkage typically is a convalent linkage. However, in some embodiments the disclosure concerns other polymer conjugates including those where the biologically active agent is an imaging agent, such as a tyrosinamide, a diagnostic agent, or a targeting agent, such as biotin.
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