Potential and Cell Density Dependences of Extracellular Electron Transfer of Anode-Respiring Geobacter sulfurreducens Cells

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  • MATSUDA Shoichi
    Department of Applied Chemistry, School of Engineering, The University of Tokyo
  • LIU Huan
    Research Center for Advanced Science and Technology, The University of Tokyo
  • HASHIMOTO Kazuhito
    Department of Applied Chemistry, School of Engineering, The University of Tokyo Research Center for Advanced Science and Technology, The University of Tokyo ERATO/JST, HASHIMOTO Light Energy Conversion Project
  • NAKANISHI Shuji
    Research Center for Advanced Science and Technology, The University of Tokyo ERATO/JST, HASHIMOTO Light Energy Conversion Project

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タイトル別名
  • Potential and Cell Density Dependences of Extracellular Electron Transfer of Anode-Respiring <i>Geobacter sulfurreducens</i> Cells

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抄録

Geobacter sulfurreducens has been extensively studied as a model electricity-producing microbes and it is now well known that extracellular electron transfer (EET) to an anode in this microbe is mediated through the expression of abundant outer membrane c-type cytochromes (OMCs). As the electrons need to travel across the biofilm formed on an anode, the macroscopic EET activity depends on the biofilm thickness. In this sense, it is worth investigating how the EET current depends on the optical cell density (OD) in the electrochemical chamber. Here we report that the OD value strongly affects on the relationship between the EET current and the anode potential.

収録刊行物

  • Electrochemistry

    Electrochemistry 80 (5), 330-333, 2012

    公益社団法人　電気化学会

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