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. 2016 Jun 28;7:980. doi: 10.3389/fmicb.2016.00980

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Copyright © 2016 Tan, Adhikari, Malvankar, Ward, Nevin, Woodard, Smith, Snoeyenbos-West, Franks, Tuominen and Lovley.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Conductivity of G. uraniireducens pili. (A) Atomic force microscopy image of the G. uraniireducens pili bridging electrodes. Electrode pairs 1–2, 2–3, and 3–4 were used for the conductivity measurements. The scale bar represents 500 nm. (B) Diameter (height) of the G. uraniireducens pili. (C) Current–voltage response of the pili. The average value of the current from three measurements are represented as data points while the standard error is represented as the error bar. (D) Comparison of the conductivity of pili for G. uraniireducens pili and previously reported (Adhikari et al., 2016) conductivities of wild-type G. sulfurreducens and Aro-5 pili.