first_imgWe’ve talked about superhydrophobic coatings before, most notably with a spray that was developed in 2011 that could mean an end to washing your clothes and MIT’s more recent coating for condiment bottles. Now, the University of Michigan has developed a new, superomniphobic nanoscale coating that looks to perform even better, but at the same time is formed of between 95 and 99 percent air.The coating is made up of millions of pockets of air. Dropping just about any liquid on to a superomniphobic coated surface sees the liquid just bounce or roll off. In fact, even if a liquid manages to sit on the surface, it is only ever touching between 1-5 percent of it. The rest is just air.It doesn’t seem to matter what type of liquid it is, either. The surface repels pretty much everything you’d come into contact with on a daily basis, including alcohol, oil, solvents, organic bases, and organic acids. That means coffee, paint, shampoo, ink, vegetable oil, soy sauce, and even blood just roll right off it. The only liquids it can’t stop are two chlorofluorocarbons, more specifically those found in refrigerators and air conditioning units.Uses for such a coating are wide and varied. Top of the list is applying it to fabrics as it allows a piece of clothing to remain breathable while keeping it completely dry and stain free. Other areas it would benefit include as a touchscreen coating to stop fingerprints, and as an omniphobic paint to allow ships less drag in water or to keep your car from getting dirty/wet.The coating is manufactured from a combination of plastic particles, carbon, flourine, oxygen, and silicon. The rubber particles are called polydimethylsiloxane, where as the other ingredients form a “liquid-resisting nanoscale cubes” that the Air Force developed. The Air Force also happen to be funding this research. The act of coating a material with this stuff requires electrospinning, which uses an electrical charge to turn the liquid solution into solid particles.For the moment, the superomniphobic coating remains a project in a research lab, but one that proves to have a lot of potential to revolutionise certain industries.More at University of Michiganlast_img read more