Forget wearable electronics -- 2013 was a banner year for electronics designed to work from inside the body. Scientists developed biodegradable circuits that could one day destroy microbes with heat to help heal a wound and dissolve after they've done their jobs. They invented flexible electronic tattoos that could be loaded with enough sensors to make your FitBit seem like a clunky piece of junk. And now we have tiny LED probes and a stretchy foil made of gold nanoparticles that can measure and manipulate the brain. Your cyborg future just got a little closer.
By Wired.
