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Peter Diamandis

Gecko inspired mess free super adhesive can stick a TV to the wall

Posted in Science on 18th Feb, 2012 05:42 PM by APM

Everyone knows geckos have extraordinary powers of adhesion, able to clamber up vertical windows with remarkable ease. With the "Geckskin", a team of scientists have replicated the effect to produce a flat, index-card sized piece of material capable of carrying a 700-pound (318-kg) load - easily enough for a flatscreen television. It can be removed with ease and leaves no unpleasant oomska. And interestingly, it doesn't work as you might think.


Hair today, gone tomorrow
You probably know that a gecko's toes have millions of microscopic hair-like setae that exploit van der Waals interactions that cause attraction and repulsion at the molecular level. Past attempts to replicate gecko superpowers have tended to focus on these setae as a means of making materials adhere, such as adhesive tapes, stickybots and wall-climbing robots. However, the team of researchers at the University of Massachusetts Amherst discovered that setae are not necessary to solve the problem, being but one part of a gecko's climbing toolkit.


The game's afoot
The research team is mainly comprised of polymer scientists, but also includes biologist Duncan Irschick who has been observing and thinking about geckos' climbing ability for more than 20 years. Taking a more holistic approach to the problem, the team realize that a gecko's skin, bones and tendons work in unison to remarkable and sticky effect.


The Geckskin is a stiff woven fabric incorporating a soft adhesive pad, woven into a "synthetic tendon" like that of a gecko's foot. "Our design for Geckskin shows the true integrative power of evolution for inspiring synthetic design that can ultimately aid humans in many ways," said Irschick. The team is aiming to further improve the Gecksin by looking at the wide variation evident in the evolution of gecko feet.


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Author: Guest
Posted: 2013-10-25
nlY34M Thanks a lot for the blog.Much thanks again. Reply


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