Researchers 3D print graphene-oxide soft robots

Researchers from China’s Harbin Institute of Technology have 3D printed a soft robot from graphene-oxide that is capable of moving backward and forwards when exposed to moisture. The scientists combined Direct Ink Writing (DIW) 3D printing and constrained drying techniques to fabricate the soft robot, and were able to overcome the porosity, shrinkage and structure uniformity challenges previously observed when 3D printing graphene-oxide objects.