Embedding electro-active bacteria in a polymer structure can improve the effectivness of living electrodes, according to Swedish researchers at Linköping University. Working with Lawrence Berkeley National Laboratory, they embedded the bacterium Shewanella oneidensis into the electrically-conductive polymer PEDOT:PSS, on a substrate of carbon felt. The result, revealed by microscopy, was an interleaved structure of bacteria and conducting polymers up ...

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