Posted on May 18, 2012 by Bennett Lee
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PHILADELPHIA, PA–Coatings capable of completely repelling water could raise the bar in the near future.
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……….A new startup, Nelum Sciences, has developed a transparent superhydrophobic coating based on silica nanoparticles to help surfaces repel water as well as other liquid nuisances.
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Superhydrophobicity, also known as the “lotus effect” gives a water contact angle over 150°. a superhydrophobic coating causes drops of water to bead up and roll right off. In addition, surfaces become self-cleaning, since the rolling droplets can carry with them any dirt or other unwanted particles. The technology was created through research done by Prof. Shu Yang at the University of Pennsylvania and is currently patent-pending.
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The technology is fun to watch with several demonstrations available on Youtube, including one where drops of water are seen accelerating right off of a pair of safety goggles.
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Prof. Yang sees vast potential in the technology with the potential for it to be applied in everything from car windshields, safety goggles, optical lens, and any other application that needs to quickly repel water to maintain clear sight. Other applications could even include solar panels, which could repel accruing materials that block sunlight and inhibit efficiency.
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Nelum has gained traction and already acquired an SBIR Phase I grant and is currently in the process of further developing this technology.
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About The Author: Bennett Lee is enrolled in The Jerome Fisher Program in Management and Technology – The Wharton School | School of Engineering and Applied Sciences, University of Pennsylvania Class of 2013 – Copyright 2012
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