The Cool Science Stuff Thread

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I haven't done the math on this.
 
http://www.the-scientist.com/?articles.view/articleNo/34612/title/Insect-Wing-Kills-Bacteria/


It’s one of the first natural surfaces found to kill bacteria simply by virtue of its physical structure, Nature reported: an array of hexagonal “nanopillars” on the wings of a clanger cicada (Psaltoda claripennis) can put enough strain on bacterial cells to rupture them. The findings, published last month (February 19) in Biophysical Journal, detail how this nanoscale structure can be so deadly.
 
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