Durable Hydrophilic Dry Adhesives with Hierarchical Structure and Method of Making
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United States of America Patent
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Nov 6, 2014
app pub date -
Aug 2, 2012
filing date -
Aug 2, 2012
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Abstract
Provided is a method of making durable hydrophilic and hierarchical structures containing nano and micro features used as dry adhesives. The method includes introduction of hydrophilic, nanostructured features on the micro-scale tips of fibrillar arrays through UV/Ozone (UVO) and oxygen plasma treatment; the method also includes further coating of the hierarchical structure with a polyelectrolyte via electrostatically-driven self-assembly to improve the hydrophilic stability of the treated fibril tip surfaces.
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