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Overview
The Brittle Star's Apprentice
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Joanna Aizenberg's muse is the whole of the natural world. The Harvard University materials scientist takes her inspiration from creatures that suggest engineering of substances in unexpected ways. Ocean creatures in particular have proved inspirational. The brittle star, a relative of the starfish and the sea urchin, has a shell coated with lenses, which may furnish ideas for new types of optical communication systems. There is also the deep-sea sponge with a crown composed of optical fibers.
Aizenberg's early life in Russia and her brilliant, creative career as an engineer that followed at Harvard the Massachusetts Institute of Technology are the focus of a question-and-answer feature in the February 2012 Scientific American.
Her laboratory has mustered a basic understanding of the physics of water to design a finely structured polymer coating that resists every attempt to accrete a layer of ice at temperatures as low as 30 degrees Celsius. The material, or some analogue thereof, might one day find its way into aircraft, power-transmission towers and building roofs.
Watch this incredible video of a droplet of water pinging off Aizenberg's no-icing, super-hydrophobic surface. For comparison, the video starts with two other surfaces—one hydrophilic and the other merely hydrophobic.
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6 Comments
Add CommentIt looks to me like she's testing that stuff on the windshield of her car. Heck with other applications -I want that stuff for my car -now!
Reply | Report Abuse | Link to this30 degrees celsius ???
Reply | Report Abuse | Link to thisYou mean -30 degrees celsius, don't you ?
Yea, I think the problem with ice would already be solved at 30 degrees.
Reply | Report Abuse | Link to thisSorry, but let's get it on airplane wings and bridges first!
Reply | Report Abuse | Link to thisthis sounds extremely similar to Ross Nanotechnology's “NeverWet” superhydrophobic spray-on polymer coating
Reply | Report Abuse | Link to thisIs it wrong that I think she is cute?
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