Thermally activated long range electron transport in living biofilms

Matthew D. Yates, Joel P. Golden, Jared Roy, Sarah M. Strycharz-Glaven, Stanislav Tsoi, Jeffrey S. Erickson, Mohamed Y. El-Naggar, Scott Calabrese Barton, Leonard M. Tender

    Research output: Contribution to journalArticle

    • 24 Citations

    Abstract

    Microbial biofilms grown utilizing electrodes as metabolic electron acceptors or donors are a new class of biomaterials with distinct electronic properties. Here we report that electron transport through living electrode-grown Geobacter sulfurreducens biofilms is a thermally activated process with incoherent redox conductivity. The temperature dependency of this process is consistent with electron-transfer reactions involving hemes of c-type cytochromes known to play important roles in G. sulfurreducens extracellular electron transport. While incoherent redox conductivity is ubiquitous in biological systems at molecular-length scales, it is unprecedented over distances it appears to occur through living G. sulfurreducens biofilms, which can exceed 100 microns in thickness.

    Original languageEnglish (US)
    Pages (from-to)32564-32570
    Number of pages7
    JournalPhysical Chemistry Chemical Physics
    Volume17
    Issue number48
    DOIs
    StatePublished - 2015

    Profile

    biofilms
    electrons
    Carrier Proteins
    Electron Transport
    conductivity
    electrodes
    Autoradiography
    Oxidation-Reduction
    Electrons
    cytochromes
    electron transfer
    electronics
    temperature
    Acetanilides
    Catatonia
    Electronic properties

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Physics and Astronomy(all)

    Cite this

    Yates, M. D., Golden, J. P., Roy, J., Strycharz-Glaven, S. M., Tsoi, S., Erickson, J. S., ... Tender, L. M. (2015). Thermally activated long range electron transport in living biofilms. Physical Chemistry Chemical Physics, 17(48), 32564-32570. DOI: 10.1039/c5cp05152e

    Thermally activated long range electron transport in living biofilms. / Yates, Matthew D.; Golden, Joel P.; Roy, Jared; Strycharz-Glaven, Sarah M.; Tsoi, Stanislav; Erickson, Jeffrey S.; El-Naggar, Mohamed Y.; Calabrese Barton, Scott; Tender, Leonard M.

    In: Physical Chemistry Chemical Physics, Vol. 17, No. 48, 2015, p. 32564-32570.

    Research output: Contribution to journalArticle

    Yates, MD, Golden, JP, Roy, J, Strycharz-Glaven, SM, Tsoi, S, Erickson, JS, El-Naggar, MY, Calabrese Barton, S & Tender, LM 2015, 'Thermally activated long range electron transport in living biofilms' Physical Chemistry Chemical Physics, vol 17, no. 48, pp. 32564-32570. DOI: 10.1039/c5cp05152e
    Yates MD, Golden JP, Roy J, Strycharz-Glaven SM, Tsoi S, Erickson JS et al. Thermally activated long range electron transport in living biofilms. Physical Chemistry Chemical Physics. 2015;17(48):32564-32570. Available from, DOI: 10.1039/c5cp05152e

    Yates, Matthew D.; Golden, Joel P.; Roy, Jared; Strycharz-Glaven, Sarah M.; Tsoi, Stanislav; Erickson, Jeffrey S.; El-Naggar, Mohamed Y.; Calabrese Barton, Scott; Tender, Leonard M. / Thermally activated long range electron transport in living biofilms.

    In: Physical Chemistry Chemical Physics, Vol. 17, No. 48, 2015, p. 32564-32570.

    Research output: Contribution to journalArticle

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