Colloid and surface chemistry explores the behaviour of materials when one phase is dispersed within another or in contact at an interface. Colloids consist of particles roughly 1 nm to 1 µm in size ...

Colloidal stability in nonpolar media hinges on the generation and control of surface charge in a low-dielectric environment where free ions are scarce. Charge carriers are most often introduced via ...

Raymond Tu wears a polka dot shirt and tan blazer and smiles at the camera. Raymond Tu Credit: The City College of New York Raymond S. Tu has been a professor at the City College of New York (CCNY) ...

Occasionally referred to as ‘colloidal gold,’ gold colloid is a suspension comprising sub-micron gold nanoparticles suspended in a solvent - most commonly water. Gold nanoparticles' distinct ...