Microengineered Hollow Graphene Tube Systems Generate Conductive Hydrogels with Extremely Low Filler Concentration

The fabrication of electrically conductive hydrogels is challenging as the introduction an filler often changes mechanical hydrogel matrix properties. Here, we present approach for preparation composites with outstanding electrical conductivity at extremely low loadings (0.34 S m–1, 0.16 vol %). Exfoliated graphene and polyacrylamide are microengineered to 3D such that pathways pervade similar artificial nervous system. This makes it possible combine both exceptional exfoliated adaptable properties polyacrylamide. demonstrated highly versatile regarding porosity, material, well important difference other approaches keep original matrix, while ensuring through graphene-coated microchannels. novel generating very promising, particular applications in fields bioelectronics biohybrid robotics.