Graphene Thinks Outside the Box
Inspired by origami, the ancient art of paper folding, Chinese researchers have created pre-programmed graphene-based paper that can self-fold into boxes, hand-like grippers, and even walking devices [Mu et al., Sci. Adv. (2015) 1, e1500533]. Folding and cutting two-dimensional materials is attracting new interest from materials scientists as an easy way of creating intricate three-dimensional