Tiny versions of the reflectors on sneakers and bicycle fenders that help ensure the safety of runners and bikers at night are moving toward another role in detecting bioterrorism threats and diagnosing everyday infectious diseases, scientists said. Their report on progress in using these innovative "retroreflectors" - the same technology that increases the night-time visibility of traffic signs - was among almost 12,000 on the agenda of the 245th National Meeting & Exposition of the American Chemical Society, the world's largest scientific society...
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