Antimicrobial medical devices including silver nanoparticles
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United States of America Patent
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Issued Date -
Jul 31, 2008
app pub date -
Jan 29, 2008
filing date -
Jan 31, 2007
priority date (Note) -
Abandoned
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Abstract
The present invention provides methods for making an antimicrobial medical device, preferably an antimicrobial ophthalmic device, more preferably an antimicrobial extended-wear contact lens, which contains chloride-treated silver nanoparticles distributed uniformly therein. The antimicrobial medical device can exhibit antimicrobial activity over an extended period of time but is substantially free of the characteristic yellowish color of the untreated silver nanoparticles.
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