Hydrogel implants could be a fiber optic network for your body

The biggest problem with wetware is the “ware” part. Enormous metal implants like those seen in The Matrix or Elysium look cool and all, but any real-world interface of metal and flesh is precarious; surface implants are often rejected by the body, leading to infection and even death. Technology has gotten smaller, more efficient, and able to better communicate wirelessly, but for all the nifty implants we can build, actually implanting them has proven difficult, and controlling them even more so. Now, researchers at Massachusetts General Hospital claim that a special hydrogel could change all that.
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