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. 2012 Sep 5;109(38):15467–15472. doi: 10.1073/pnas.1209829109

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Fig. 5. — Electrochemical gate experiment recorded under turnover condition (with acetate present). (A) Because each electrode also acts as an anode, the resulting current measured at electrode 1 (drain) is the sum of catalytic current and conducted current out of the biofilm, and at electrode 2 (source) is the sum of catalytic current and conducted current into the biofilm, plotted here vs. potential applied to each electrode. Electrode potentials were scanned at 0.002 V/s while maintaining electrode 2 at a fixed −0.100 V offset vs. electrode 1. (A, Inset) CV recorded for the two electrodes simultaneously without an offset such that for background subtraction of for each of electrode (same axis scales). (B) vs. after background subtracting . Qualitative fits are based on Eq. 3 (same as in Fig. 4A).

Inline graphic — Electrochemical gate experiment recorded under turnover condition (with acetate present). (A) Because each electrode also acts as an anode, the resulting current measured at electrode 1 (drain) is the sum of catalytic current and conducted current out of the biofilm, and at electrode 2 (source) is the sum of catalytic current and conducted current into the biofilm, plotted here vs. potential applied to each electrode. Electrode potentials were scanned at 0.002 V/s while maintaining electrode 2 at a fixed −0.100 V offset vs. electrode 1. (A, Inset) CV recorded for the two electrodes simultaneously without an offset such that for background subtraction of for each of electrode (same axis scales). (B) vs. after background subtracting . Qualitative fits are based on Eq. 3 (same as in Fig. 4A).