Microparticles and their therapeutic or diagnostic use
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United States of America Patent
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Jul 9, 2002
Grant Date -
N/A
app pub date -
Jul 20, 2000
filing date -
Dec 22, 1997
priority date (Note) -
Expired
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Abstract
Microcapsules having a wall thickness of no more than 500 nm, and a bulk density of no more than 0.2 g.cm.sup.-3, are suitable for therapeutic or diagnostic use. They are aerodynamically light, and can be used for delivery to the lung, or diagnosis by ultrasound.
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