Research ArticleMATERIALS SCIENCE

Origami-inspired active graphene-based paper for programmable instant self-folding walking devices

Science Advances  06 Nov 2015:
Vol. 1, no. 10, e1500533
DOI: 10.1126/sciadv.1500533

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Abstract

Origami-inspired active graphene-based paper with programmed gradients in vertical and lateral directions is developed to address many of the limitations of polymer active materials including slow response and violent operation methods. Specifically, we used function-designed graphene oxide as nanoscale building blocks to fabricate an all-graphene self-folding paper that has a single-component gradient structure. A functional device composed of this graphene paper can (i) adopt predesigned shapes, (ii) walk, and (iii) turn a corner. These processes can be remote-controlled by gentle light or heating. We believe that this self-folding material holds potential for a wide range of applications such as sensing, artificial muscles, and robotics.

Keywords
  • Origami
  • graphene paper
  • wearable device
  • self-folding

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