A film deflects from a magnetic field when exposed to light.
Credit: SilkLab, Tufts University
Elastomeric composites can flex, grip, release, or rotate when exposed to lasers, diffuse light or sunlight. Researchers at Tufts University School of Engineering have developed magnetic elastomeric composites that move in different ways when exposed to light, raising the possibility that these materials could enable a wide range of products that perform simple to complex movements, from tiny engines and valves to solar arrays that bend toward the sunlight. The research is described in an article published today in the Proceedings of the National Academy of Sciences.
In biology, there are many examples where light induces movement or change – think of flowers and leaves turning toward sunlight...
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