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Stretchy Optical Fibers Implanted in Your Body Could Sense Disease

A new form of stretchy fibers that can be implanted into the body are offering hope for diagnosing diseases at the earliest possible stage. Researchers from MIT and Harvard Medical School developed the biocompatible fibers using hydrogel—an elastic, rubbery material made mostly out of water. “Optical fibers are usually made of rigid glass and plastic, which is much stiffer than [the] human body,” Xuanhe Zhao, an associate professor at MIT, tells Newsweek.
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