Three-Dimensional Printing of High-Content Graphene Scaffolds for Electronic and Biomedical Applications

The exceptional properties of graphene enable applications in electronics, optoelectronics, energy storage, and structural composites. Here we demonstrate a 3D printable graphene (3DG) composite consisting of majority graphene and minority polylactide-co-glycolide, a biocompatible elastomer, 3D-printed from a liquid ink. This ink can be utilized under ambient conditions via extrusion-based 3D printing to create graphene structures with features as small as 100 μm composed of as few as two layers (10 cm thick object). The resulting 3DG material is mechanically robust and flexible while retaining electrical conductivities greater than 800 S/m, an order of magnitude increase over previously reported 3D-printed…

• UD
  U.S. Department of Defense
• NU
  Northwestern University
• OO
  Office of Naval Research

  Award: N00014-11-1- 0690
• NC
  National Cancer Institute

  Awards: NCI CCSG P30 CA060553, NCI CA060553
• DO
  Division of Materials Research

  Award: NSF DMR-1121262
• DO
  Division of Engineering Education and Centers

  Award: EEC-0118025|003
• MR
  Medical Research and Materiel Command
• AR
  Army Research Office