Traditional lab tests for disease diagnosis can be too expensive and cumbersome for the regions most in need. George Whitesides' ingenious answer, at TEDxBoston, is a foolproof tool that can be manufactured at virtually zero cost. This video is courtesy of YouTube account TEDtalksDirector. They've also got a great site at Ted.com. See our entry on George Whitesides called Talk about Rock Stars by June Wispelwey.
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