August 29, 2005
MIT scientists have developed a unique polymer coating made of silica nanoparticles that they say can create surfaces that never fog.
The coatings consist of alternating layers of silica nanoparticles and a polymer called polyallylamine hydrochloride. The super-hydrophilic nanoparticles in the coating strongly attract the water droplets and force them to form much smaller contact angles with the surface. As a result, the droplets flatten and merge into a… read more