Biocatalyzed Artificial Photosynthesis by Hydrogen-Terminated Silicon Nanowires

Authors

  • Hwa Young Lee,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 335 Science Road, Daejeon 305-701 (Republic of Korea)
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  • Dr. Jungki Ryu,

    1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (USA)
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  • Jae Hong Kim,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 335 Science Road, Daejeon 305-701 (Republic of Korea)
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  • Sahng Ha Lee,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 335 Science Road, Daejeon 305-701 (Republic of Korea)
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  • Prof. Chan Beum Park

    Corresponding author
    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 335 Science Road, Daejeon 305-701 (Republic of Korea)
    • Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 335 Science Road, Daejeon 305-701 (Republic of Korea)
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Abstract

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Down to the wires: A highly efficient artificial photosynthetic system employing hydrogen-terminated silicon nanowires is reported. The nanowires enable a cascading electron transfer from electron donor to NAD+ via a rhodium-based electron mediator. Approximately 80 % of NADH is photoregenerated from NAD+ by the nanowires during 2 h of light irradiation, and successfully coupled with the photoenzymatic synthesis of L-glutamate.

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