Single-layer graphene oxide (GO) is an exciting graphene-based nanomaterial with potential for use in a wide variety of industries and applications. GO’s good dissolvability in water, as well as in organic solvents, makes solution processing easy. Dispersions of graphene in water and ethanol facilitate environmentally safe handling of graphene for use in coatings, composites, and other advanced material applications. Single-layer graphene oxide from ACS Material has a pH of about 3-5 when dissolved into distilled water by sonication. Applications include transparent conductive films and coatings, solar energy storage cells, nanoelectronics, supercapacitors, biosensors, drug delivery systems, and many others.