Scientists use lasers to make metals super water-repellent

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A new method for producing super water-repellent surfaces could lead to self-cleaning materials that are much more slippery than Teflon and never corrode. Researchers from the University of Rochester say they can make metals superhydrophobic (highly water-repellent) using powerful lasers to etch micro and nanoscale structures onto its surface. “The material is so strongly water-repellent, the water actually gets bounced off,” said Chunlei Guo, lead author of the study outlining the technique, in a statement. “Then it lands on the surface again, gets bounced off again, and then it will just roll off from the surface.”

Unlike chemical treatments, laser-etching can’t be rubbed off

Superhydrophobic surfaces have previously been created…

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