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Science Magazine: Carbon-based paper that walks when hit with a laser

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Carbon-based paper folds itself up, walks away. Advance could lead to artificial muscles for robots.

Researchers around the globe have developed a variety of sheetlike polymers and gels capable of folding in response to changes in temperature, pH, or other stimuli. Now, a team in China reports today in Science Advances that it has designed a carbon-based paper that takes the next step forward, literally. In this case, the sheet is made from an ultrathin carbon-based material called graphene oxide that folds, walks, and even turns corners on its own (as seen in the video above).