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Scoop.it!
Scientists at MIT and Brigham and Women's Hospital are working on a new class of painless needles and adhesives inspired by porcupine quills. 
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Scoop.it!
Mosquitoes are perhaps useful for something after all, besides feeding frogs. Along with his colleagues at Osaka's Kansai University, mechanical engineer Seiji Aoyagi has created an almost pain-free hypodermic needle that is based on a mosquito's proboscis. Perhaps surprisingly, the needle's patient-friendliness comes from the fact that its outer surface is jagged, not smooth.
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