Polysaccharide derivative/magnetic metal oxide composite
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United States of America Patent
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Dec 26, 2000
Grant Date -
N/A
app pub date -
Mar 1, 1999
filing date -
Aug 30, 1996
priority date (Note) -
Expired
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Abstract
The present invention provides a polysaccharide-magnetic metal oxide complex consisting of a polysaccharide derivative obtained by carboxyalkyl-etherifying and unsubstituted or substituted aminoalkyl-etherifying a polysaccharide (the above carboxy group and/or amino group may be of a salt form) and a magnetic metal oxide. The above complex has a slow blood clearance and a low toxicity and is useful as a nuclear magnetic resonance imaging contrast medium.
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