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 ...

Finding new materials with useful properties is a primary goal for materials scientists, and it's central to improving ...

Scientists have twisted DNA into programmable nanostructures that form themselves — and could reshape future materials for light, sound, and electronics.

Concentration polarization of ion-exchange membranes in electrodialysis units limits operational current densities to the underlimiting regime, preventing process intensification by simply increasing ...