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Science & Technology

Water bounces off super-repellent material

By T.K. Randall
January 28, 2015 · Comment icon 13 comments

The material has a wide range of practical applications. Image Credit: sxc.hu
Scientists have developed a material so water repellent that water droplets simply bounce off it.
The sophisticated new material was created through a process that involves laser-etching a microscopic pattern on to a metal surface and is far more water repellent than conventional chemical coatings such as Teflon which is used in non-stick frying pans.

The new material could prove invaluable in a range of applications from keeping ice from forming on airplanes to the production of self-cleaning toilets, something that has drawn particular interest from the Bill and Melinda Gates Foundation.
There is still quite a lot of work to be done before the material is ready for consumer use however, especially given that it currently takes an hour to produce a single square inch. The science team is also looking in to a way to apply the same method to non-metal surfaces as well.

A video demonstrating the water-repellent properties of the material can be viewed below.



Source: Live Science | Comments (13)




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Recent comments on this story
Comment icon #4 Posted by paperdyer 10 years ago
Some other applications, besides a self-cleaning toilet, could be on a car. You'd never have to wash and wax it! Windows you'd never have to wash, except from the inside! If a durable enough road surface could be made, the etchings could keep ice from the roads. I guess a really efficient drainage system for the roads would need to be developed to keep from hydroplaning. If the water just sits there, I guess the roads could flood more easily or at least act the same as flooding. Typo fixed.
Comment icon #5 Posted by Sundew 10 years ago
That's some cool physics. Makes water look like mercury. Not unlike the leaf of the Lotus plant Nelumbo nucifera. Water slides around on the leaf surface as if quicksilver.
Comment icon #6 Posted by gailforce 10 years ago
who wants to buy a square mile and throw it in the see (any will do)
Comment icon #7 Posted by Atuke 10 years ago
Not unlike the leaf of the Lotus plant Nelumbo nucifera. Water slides around on the leaf surface as if quicksilver. A fellow nature nerd as myself. I have to look into that
Comment icon #8 Posted by clare256 10 years ago
Now why would Bill and Melinda Gates be excited about a self-cleaning toilet. Don't they have a maid?
Comment icon #9 Posted by Sundew 10 years ago
A fellow nature nerd as myself. I have to look into that Here you go: https://www.youtube.com/watch?v=mrxDk_wihTs
Comment icon #10 Posted by Atuke 10 years ago
Wow thanks much
Comment icon #11 Posted by Sundew 10 years ago
Wow thanks much No sweat.
Comment icon #12 Posted by ShortyStuff 10 years ago
Shhh, don't tell everyone about the Lotus leaf. The big corporations can't patent nature and make billion$ off of it.
Comment icon #13 Posted by RobMugs 10 years ago
So, is Rust-Oleum going to sue for this? It was, basically an idea they bought from Ross Technology. Ever hear of NeverWet? While it is a waste of money, it employs the same basic principles.


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