Biodegradable battery

Business Standard (from Indo Asian News Service, New Delhi; New Delhi, March 25) -- A four-cell biodegradable, implantable battery developed by U. of I. materials science and engineering professor John Rogers and collaborators, uses anodes of magnesium foil and cathodes of iron, molybdenum or tungsten. All these metals would slowly dissolve in the body and their ions are biocompatible in low concentrations. Also: Zee News (March 25), Huffington Post (March 25), Nature (March 24), India.com (March 25), The Scientist (Midland, Ontario, March 26), Health India.com (Mumbai, March 25), The Verge (New York City, March 25), Time (March 26), The Independent (London, March 26), New Electronics (Dartford, England, March 28), Clean Technica (San Francisco, March 31).