Graphene fibers with predetermined deformation as moisture-triggered actuators and robots

Angew Chem Int Ed Engl. 2013 Sep 27;52(40):10482-6. doi: 10.1002/anie.201304358. Epub 2013 Aug 14.

Abstract

Enough to make your hair curl! Moisture-responsive graphene (G) fibers can be prepared by the positioned laser reduction of graphene oxide (GO) counterparts. When exposed to moisture, the asymmetric G/GO fibers display complex, well-controlled motion/deformation in a predetermined manner. These fibers can function not only as a single-fiber walking robot under humidity alternation but also as a new platform for woven devices and smart textiles.

Keywords: actuators; carbon; graphene fibers; laser reduction; mechanical properties.