Composition comprising magnetic metal oxide ultrafine particles and derivatized polysaccharides
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United States of America Patent
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Jul 12, 1994
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N/A
app pub date -
Sep 17, 1992
filing date -
Jan 19, 1991
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Abstract
A composition containing magnetic metal oxide ultrafine particles, which comprises an aqueous sol of a complex of the magnetic metal oxide ultrafine particles with a polysaccharide, a polysaccharide derivative and/or a protein; and an organic monocarboxylic acid. The composition is free of side effects such as platelet aggregation, is safe for use with living bodies, and, in the case of intravascular administration, has no harmful effects on living bodies, and is useful in fields such as medicine and diagnostic drugs.
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