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In this image, engineered hydrogel is being pulled away from a glass surface. Engineers at MIT have developed a method to make synthetic, sticky hydrogel that is more than 90 percent water. The material shows a property called “tough wet adhesion” comparable to tendon and bone interface. The wavy edge instability at the interface is a hallmark of strongly adhered soft material on a rigid surface.
Image credit: Felice Frankel
