Caption: Christopher Bettinger eats his research.
Most people know it's not safe to eat batteries. They're toxic.
But a new kind of battery from researchers at Carnegie Mellon University has lead to non-toxic, edible batteries that could be used to power biomedical devices.
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The battery, developed by Chris Bettinger pictured above, is made from the natural pigment melanin, which the body uses to absorb ultraviolet light, protecting us from radiation damage. These pigments also bind and unbind metallic ions.
"We thought, this is basically a battery," Bettinger said in a press statement.
His team also turned to other naturally occurring compounds, including manganese oxide, sodium titanium phosphate, copper and iron.
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