Stretchy, see-through material conducts electricity

Simple new device could find use in loudspeakers, artificial muscles or soft robots

By Meghan Rosen, 17:06 PM August 30, 2013

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A thin skin of Jell-O—like material made of salty gel and rubbery tape can work as a completely transparent loudspeaker. The new device can carry current — and it’s stretchier and more see-through than today’s best transparent electronic materials, Christoph Keplinger of Harvard University and colleagues report in the Aug. 30 Science.

The squishy sandwich could one day form the flesh of soft robots or merge with biological tissues to make artificial muscles or skin. People coul...

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