New findings reveal that organosulfate groups, not carboxyls, control graphene oxide's surface charge in water, challenging long-standing models and reshaping its chemical profile. (Nanowerk Spotlight ...

An evaporating colloidal particle–laden droplet leaves behind a ring-like residue after drying. We routinely observe this ubiquitous phenomenon for dried coffee drops; thus, it is known as the "coffee ...

The synthesis, characterization, investigation, and utilization of nanomaterials are the main topics in nanotechnologies. A "marvel substance," graphene is indeed the world's strongest, thinnest, and ...

Graphene-based nanoparticle composites attract considerable attention due to their unique properties and the large variety of possible applications, such as sensing, energy storage, and catalysis. The ...

Researchers have found a new way to synthesize graphene oxide which has significantly fewer defects compared to materials produced by most common method. Similarly good graphene oxide could be ...