from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The quality of being extremely hydrophobic or repellent to water or of not being wetted.
The researchers, professor Orlin Velev and graduate student researcher Vinayak Rastogi at North Carolina State University, made the jewel-like formation by allowing nanoparticles mixed into a solution to dry on a surface that repels water like the plague, a characteristic known as superhydrophobicity.
The latter case is exactly what happens here when they achieve superhydrophobicity.
"We call this effect 'superhydrophobicity,'" said Brookhaven physicist Benjamin Ocko.
This superhydrophobicity holds at all pH levels, so anything coated with it would be protected from even the strongest acids and alkalies.
Research in superhydrophobicity recently accelerated with a letter that reported man-made superhydrophobic samples produced by allowing alkylketene dimer (AKD) to solidify into a nanostructured fractal surface.
"Mechanical abrasion to the surface can destroy the superhydrophobicity.