Simulation of multi-step enzyme electrodes

C. Hettige, S. D. Minteer, S. Calabrese Barton

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    • 2 Citations

    Abstract

    Incorporation of multiple enzymes on electrode surfaces can enhance the fuel efficiency of biofuel cell anodes, by sequentially catalyzing intermediate reactions such that fuel is completely oxidized. A quantitative study of multiple enzyme systems immobilized on porous electrodes is presented, considering immobilization of all enzymes uniformly codispersed in the same phase, as well as dispersion of individual enzymes in separate phases. Multiple phases maintain nonuniform pH conditions to enable optimum activity of each enzyme, while offering exposure to a common to the anode surface where the cofactor acting as a mediator may undergo oxidation. Comparisons have been made with the performance of electrodes with all the enzymes in a single electrode phase, identifying kinetic and transport conditions under which multi-phase immobilization shows improvement over single phase systems. The models are applicable to more electron rich enzyme reaction systems.

    Original languageEnglish (US)
    Title of host publicationECS Transactions
    Pages99-109
    Number of pages11
    Volume13
    Edition21
    DOIs
    StatePublished - 2008
    EventBiological Fuel Cells 3 - 213th Meeting of the Electrochemical Society - Phoenix, AZ, United States

    Other

    OtherBiological Fuel Cells 3 - 213th Meeting of the Electrochemical Society
    CountryUnited States
    CityPhoenix, AZ
    Period5/18/085/23/08

    Profile

    Enzymes
    Electrodes
    Anodes
    Biological fuel cells
    Enzyme electrodes
    Reaction intermediates
    Enzyme kinetics
    Oxidation
    Electrons

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Hettige, C., Minteer, S. D., & Barton, S. C. (2008). Simulation of multi-step enzyme electrodes. In ECS Transactions (21 ed., Vol. 13, pp. 99-109). DOI: 10.1149/1.3036215

    Simulation of multi-step enzyme electrodes. / Hettige, C.; Minteer, S. D.; Barton, S. Calabrese.

    ECS Transactions. Vol. 13 21. ed. 2008. p. 99-109.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Hettige, C, Minteer, SD & Barton, SC 2008, Simulation of multi-step enzyme electrodes. in ECS Transactions. 21 edn, vol. 13, pp. 99-109, Biological Fuel Cells 3 - 213th Meeting of the Electrochemical Society, Phoenix, AZ, United States, 18-23 May. DOI: 10.1149/1.3036215
    Hettige C, Minteer SD, Barton SC. Simulation of multi-step enzyme electrodes. In ECS Transactions. 21 ed. Vol. 13. 2008. p. 99-109. Available from, DOI: 10.1149/1.3036215

    Hettige, C.; Minteer, S. D.; Barton, S. Calabrese / Simulation of multi-step enzyme electrodes.

    ECS Transactions. Vol. 13 21. ed. 2008. p. 99-109.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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