Ali Javey, professor of electrical engineering and computer science at the University of California, Berkeley, has built low-power tactile sensors based on arrays of inorganic nanowire transistors. The transistors are arranged beneath, and connected to, a layer of a commercially available conductive rubber that contains carbon nanoparticles. When the rubber is compressed, its electrical resistance changes, and this can be detected by the transistors. "The nanowires are being used as active electronics to run the tactile sensor on top," he explains.
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