At this stage, the organization of the dispersion seems to be strongly assisted by the interaction between the functionalized regions of Geh and the solvents applied. Although Geh is stable also in pure water, we have noticed that water:isopropanol mixtures produce more ordered and stable dispersions. Then, the supernatant was applied for film formation via direct solvent casting on a Teflon mold and via vacuum filtration using a PTFE filtration membrane (0.2-1 µm pore sizes, depending on the lateral size of the source graphene used).