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AFM topograph of the metal reducing bacterium Shewanella oneidensis strain MR-1
cultivated under electron acceptor limitation to induce the production of electrically
conductive appendages known as bacterial nanowires. All of the branched
appendages were confirmed as electrically conductive using conductive AFM, 5µm scan.
Sample courtesy M. El-Naggar, USC and Y. Gorby, J. Craig Venter Institute.