Replicating the self-cleaning attribute that naturally occurs when gecko feet accumulate particles from an exterior surface between setae. First synthetic gecko adhesive which cleans itself during use, as the natural gecko does. University of Akron Researchers have managed to mimic the biomechanics of gecko feet in a pair of climbing pads capable of supporting a human’s weight. Carbon nanotube arrays transferred onto a … The adhesion is based solely on the geometry of the fibers: sliding the tape against a surface uncurls the fibers to engage the adhesive while sliding the tape in the opposite direction causes it to unstick (check out this video demonstration ). So far, scientists have developed “gecko tape,” a dry unidirectional adhesive, based on the gecko’s remarkable “toe fuzz.” When you pull the tape one direction, it sticks; but when you pull it another direction, it releases. Three elements are at play: foot structure, surface material structure and the type of interaction between the two. In the present study, we demonstrate that gecko setae are a self-cleaning adhesive. After repeated contacts with clean glass, the microspheres are shed, and the fibers recover 30% of their original adhesion. Nanotube Adhesive Sticks Better than a Gecko’s Foot. Gecko's feet are able to stick to surfaces thanks to millions of microscopic hair-like projections known as setae. After contamination by microspheres, the microfiber array loses all adhesion strength. Although self-cleaning by water droplets occurs in plant and animal surfaces, no adhesive has been shown to self-clean. The latest innovation inspired by biomimicry is an adhesive inspired by the power of gecko feet. Geckos with dirty feet recovered their ability to cling to vertical surfaces after only a few steps. Gecko biomimicry produces adhesive better than the real thing. 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