Origami-inspired graphene paper that can fold itself could be used to create anything from miniature robots to artificial muscles, according to a new study. Scientists from Donghua University in China have demonstrated that gently heating a sheet of graphene paper, which is extraordinarily strong (about 200 times stronger than steel by weight), could make it fold into a device that is able to walk forward and backward. And, in a first for this kind of self-folding material, they showed it could also change directions. The research could help scientists develop self-folding structures and devices for modern applications, including wirelessly controlled micro robots, artificial muscles and devices for tissue engineering, said Jiuke Mu, a Ph.D. student at Donghua University and one of the material’s inventors. [The 6 Strangest Robots Ever Created] "In the near future, it even could bring changes to people's lives," Mu told Live Science, giving the example...