German researchers armed with smoking candles have come up with a cheap and easy way to coat surfaces so that oil droplets bounce or roll right off. The advance could eventually lead to eyeglass coatings and tablet computer screens that can evade the mark of even the greasiest fingerprints.
Making surfaces able to repel fluids—whether water- or oil-based—is also important for industrial and biomedical applications. But it's harder to make a surface that repels oil or organic solvents as opposed to water because oil has a far lower surface tension than water.
To read the full, original article click on this link: A New Coating Promises the End of Smudges - Technology Review
