"Spicy world of NanoScience"
Researchers from the University of Science and Technology of China developed a new robot that's made by layering a polyethylene film onto a glass layer and an adding a layer of graphene that is used to convert photothermal energy from infra red light. The robot can pick, move and drop objects. Such a design may be useful for surgery, for example. It can also inspire the design of transparent artificial muscles: