'Edible' Electronics Can Be Powered by Melanin
“Medical devices are becoming smaller and more advanced, with researchers inventing tiny nano-scale devices that can even be ingested for internal monitoring or medication release. These devices wil,l of course, require power sources that also are safe for ingestion or implantation, and engineers are eyeing new forms of batteries and energy-harvesting methods to solve this problem.
One of the latest solutions comes from researchers at Carnegie Mellon University, who have
discovered that melanin-a natural pigment found in the human skin-demonstrates a chemical structure well-suited to creating batteries based on natural melanin pigments. These batteries could become future power sources for a new class of medical devices called "edible electronics," said Chris Bettinger, Carnegie Mellon associate professor and one of the researchers on the project.”
WTF?!