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December 11, 2012 04:21 pm PST

Porcupine barbs may inspire new IV needles

This is a microscopic image of a porcupine quill. Harvard medical researcher Jeffrey Karp and his colleagues are studying the quills to determine whether they might inspire a new design in hypodermic needles. According to their paper published today in PNAS, the barbs on the quill enable it to slide in smoothly but keep it [...]


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