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A chemical claw machine bends and stretches when exposed to vapors - EurekAlert
Scientists at King Abdullah University of Science and Technology (KAUST) in Saudi Arabia have developed a tiny “claw machine” that is able to pick up and drop a marble-sized ball in response to exposure to chemical vapors. The findings, published July 12 in the journal Chem, point to a technique that can enable soft actuators—the parts of a machine that make it move—to perform multiple tasks without the need for additional costly materials. While existing soft actuators can be “one-trick ponies” restricted to one type of movement, this novel composite film contorts itself in different ways depending on the vapor that it is exposed to.
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