Tuesday, March 26, 2013

Electric Bacteria Could Be Used for Bio-Battery

In an important step toward the creation of "bio-batteries," a new study reveals how bacteria produce electricity when proteins in their cell membranes come into contact with a mineral surface.
Scientists have known for some time that a family of marine bacteria known as Shewanella oneidensis, found in deep ocean sediments and soil, can create electrical currents when exposed to heavy metals like iron and manganese.
In a study published today (March 25) in the journal Proceedings of the National Academy of Sciences, researchers show that these proteins can ferry electrons across a membrane at a rate fast enough to produce the energy the bacteria need to survive.
For the rest of the story: http://www.livescience.com/28163-bio-batteries-one-step-closer.html

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