Methods of bonding or modifying hydrogels using irradiation
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United States of America Patent
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Sep 11, 2012
Grant Date -
Jun 14, 2007
app pub date -
Dec 7, 2006
filing date -
Dec 7, 2005
priority date (Note) -
Expired
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Abstract
This invention provides methods and processes to attach or bond hydrogels to suitable surfaces using irradiation techniques and also provides methods and processes to create crosslinked regions in hydrogel articles using these irradiation techniques. Specifically, lasers at wavelengths tuned to the irradiation absorption bands of hydroxyl groups, carboxylic acid groups or water may be used to attach or bond hydrogels to surfaces such as soft tissue and hydrogel surfaces or to crosslink regions in hydrogel articles.
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