Researchers at the University of Illinois at Urbana–Champaign in the US have unveiled a new nanogenerator able to harvest energy from a beating heart as it moves. The miniature device, which works just as well by harnessing the motion of lungs and other organs, is made from piezoelectric nanoribbons and could be used to power medical implants, say its inventors……
http://nanotechweb.org/cws/article/tech/56070
