Linking Spectral and Electrochemical Analysis to Monitor c-type Cytochrome Redox Status in Living Geobacter sulfurreducens Biofilms

Authors

  • Dr. Ying Liu,

    1. BioTechnology Institute and Department of Microbiology, University of Minnesota, 140 Gortner Laboratory, 1479 Gortner Ave, St. Paul MN 55108 (USA)
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  • Dr. Hoseang Kim,

    1. Department of Electrical Engineering and Computer Science, University of Minnesota (USA)
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  • Dr. Rhonda R. Franklin,

    1. Department of Electrical Engineering and Computer Science, University of Minnesota (USA)
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  • Dr. Daniel R. Bond

    Corresponding author
    1. BioTechnology Institute and Department of Microbiology, University of Minnesota, 140 Gortner Laboratory, 1479 Gortner Ave, St. Paul MN 55108 (USA)
    • BioTechnology Institute and Department of Microbiology, University of Minnesota, 140 Gortner Laboratory, 1479 Gortner Ave, St. Paul MN 55108 (USA)
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Abstract

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Biofilm synesthesia: A simultaneous spectral and electrochemical analysis reveals the redox status of cytochromes within living electroactive biofilms of Geobacter. The results confirm that the primary electron reservoirs within these biofilms are c-type cytochromes and suggest which cytochromes act as kinetic bottlenecks to electron transfer.

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