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Wireless Electrografting of Molecular Layers for Janus Particle Synthesis

Authors

  • Chawanwit Kumsapaya,

    1. Université de Bordeaux, ISM, UMR 5255 CNRS, ENSCBP, 33607 Pessac Cedex (France), Fax: (+33) 054002717
    2. Chemistry Department and Center of Nanotechnology, Kasetsart University, Bangkok, 10900 Thailand, Center for Advanced Studies in Nanotechnology and its Applications in Chemical, Food, and Agricultural Industries, Kasetsart University, Bangkok 10900 (Thailand)
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  • Marie-France Bakaï,

    1. Université de Bordeaux, ISM, UMR 5255 CNRS, ENSCBP, 33607 Pessac Cedex (France), Fax: (+33) 054002717
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  • Dr. Gabriel Loget,

    1. Université de Bordeaux, ISM, UMR 5255 CNRS, ENSCBP, 33607 Pessac Cedex (France), Fax: (+33) 054002717
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  • Bertrand Goudeau,

    1. Université de Bordeaux, ISM, UMR 5255 CNRS, ENSCBP, 33607 Pessac Cedex (France), Fax: (+33) 054002717
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  • Dr. Chompunuch Warakulwit,

    1. Chemistry Department and Center of Nanotechnology, Kasetsart University, Bangkok, 10900 Thailand, Center for Advanced Studies in Nanotechnology and its Applications in Chemical, Food, and Agricultural Industries, Kasetsart University, Bangkok 10900 (Thailand)
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  • Prof. Jumras Limtrakul,

    1. Chemistry Department and Center of Nanotechnology, Kasetsart University, Bangkok, 10900 Thailand, Center for Advanced Studies in Nanotechnology and its Applications in Chemical, Food, and Agricultural Industries, Kasetsart University, Bangkok 10900 (Thailand)
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  • Prof. Alexander Kuhn,

    1. Université de Bordeaux, ISM, UMR 5255 CNRS, ENSCBP, 33607 Pessac Cedex (France), Fax: (+33) 054002717
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  • Dr. Dodzi Zigah

    Corresponding author
    1. Université de Bordeaux, ISM, UMR 5255 CNRS, ENSCBP, 33607 Pessac Cedex (France), Fax: (+33) 054002717
    • Université de Bordeaux, ISM, UMR 5255 CNRS, ENSCBP, 33607 Pessac Cedex (France), Fax: (+33) 054002717
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Abstract

original image

Glassy carbon beads are selectively functionalized on one side with an ultrathin organic layer by bipolar electrochemical reduction of diazonium salts to give Janus-type beads with a hybrid organic–inorganic composition (see scheme). The presence of the grafted organic layers is revealed either by co-adsorption of gold nanoparticles or by coupling with a fluorescent molecule.

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