Bacterial nanowires conduct like metals
Derek Lovley and colleagues of the University of Massachusetts at Amherst made their discovery in networks of "bacterial filaments." These are also known as "microbial nanowires" because they conduct electrons along their length. These are produced naturally by some bacteria and are about 3-5 nm wide and up to tens of micrometres long. The filaments bind bacteria together into clumps called microbial biofilms.
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