Half a dozen palm-sized, plastic gadgets lie scattered across the desk in Aydogan Ozcan's UCLA office. Each device is a different type of low-cost medical diagnostic tool. Several of them contain a lens-free microscope of Ozcan's own invention. And all of them rely on the powers of the cellphone. "If you add up all the architecture at the back of a cellphone-electronics, optics, software, connectivity-it holds phenomenal promise for use as a platform," he says.
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