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Conjugated Oligoelectrolytes Increase Power Generation in E. coli Microbial Fuel Cells

Authors

  • Huijie Hou,

    1. Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California at Santa Barbara, CA 93117, USA
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  • Xiaofen Chen,

    1. Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California at Santa Barbara, CA 93117, USA
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  • Alexander W. Thomas,

    1. Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California at Santa Barbara, CA 93117, USA
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  • Chelsea Catania,

    1. Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California at Santa Barbara, CA 93117, USA
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  • Nathan D. Kirchhofer,

    1. Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California at Santa Barbara, CA 93117, USA
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  • Logan E. Garner,

    1. Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California at Santa Barbara, CA 93117, USA
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  • Arum Han,

    1. Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA
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  • Guillermo C. Bazan

    Corresponding author
    1. Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California at Santa Barbara, CA 93117, USA
    • Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California at Santa Barbara, CA 93117, USA.
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Abstract

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A series of conjugated oligoelectrolytes with structural variations is used to stain E. coli. By taking advantage of a high-throughput screening platform that incorporates gold anodes, it is found that MFCs with COE-modified E. coli generate significantly higher power densities, relative to unmodified E. coli. These findings highlight the potential of using water-soluble molecules inspired by the work on organic semiconductors to improve electrode/microbe interfaces.

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