Preparation of a Magnetically Switchable Bio-electrocatalytic System Employing Cross-linked Enzyme Aggregates in Magnetic Mesocellular Carbon Foam

Authors

  • Jinwoo Lee Dr.,

    1. National Creative Research Initiative Center for Oxide Nanocrystalline Materials and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea, Fax: (+82) 2-888-1604
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    • These authors contributed equally to this work.

  • Dohoon Lee,

    1. Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1, Kusong-dong, Yusong-gu, Taejon 305-701, Korea, Fax: (+82) 42-869-2610
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    • These authors contributed equally to this work.

  • Eunkeu Oh,

    1. Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1, Kusong-dong, Yusong-gu, Taejon 305-701, Korea, Fax: (+82) 42-869-2610
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  • Jaeyun Kim,

    1. National Creative Research Initiative Center for Oxide Nanocrystalline Materials and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea, Fax: (+82) 2-888-1604
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  • Young-Pil Kim,

    1. Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1, Kusong-dong, Yusong-gu, Taejon 305-701, Korea, Fax: (+82) 42-869-2610
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  • Sunmi Jin,

    1. National Creative Research Initiative Center for Oxide Nanocrystalline Materials and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea, Fax: (+82) 2-888-1604
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  • Hak-Sung Kim Prof.,

    1. Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1, Kusong-dong, Yusong-gu, Taejon 305-701, Korea, Fax: (+82) 42-869-2610
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  • Yosun Hwang,

    1. Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
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  • Ja Hun Kwak Dr.,

    1. Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, WA 99352, USA, Fax: (+1) 509-376-5106
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  • Je-Geun Park Prof.,

    1. Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea
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  • Chae-Ho Shin Prof. Dr.,

    1. Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 360-763, Korea
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  • Jungbae Kim Dr.,

    1. Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, WA 99352, USA, Fax: (+1) 509-376-5106
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  • Taeghwan Hyeon Prof.

    1. National Creative Research Initiative Center for Oxide Nanocrystalline Materials and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea, Fax: (+82) 2-888-1604
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  • T.H. thanks the Korean Ministry of Science and Technology for financial support through the National Creative Research Initiative Program. H.K. thanks the Nano Measurement Technology Project of the Ministry of Science and Technology and the BK21 Program of the Ministry of Education for financial support. J.K. thanks the US Department of Energy (DOE) LDRD for funds administered by the Pacific Northwest National Laboratory, the DOE Office of Biological and Environmental Research under the Environmental Management Science Program, and the Microsystems Technology Office of the US.

Abstract

original image

Glucose oxidase (GOx) was immobilized in magnetic mesocellular carbon foam by cross-linking with glutaraldehyde. This material has been utilized to construct a magnetically switchable bio-electrocatalytic system in which the catalytic oxidation of glucose could be switched on and off by the positioning of an external magnet near and away from the electrode (see scheme).

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