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Anisotropically Luminescent Hydrogels Containing Magnetically-Aligned MWCNTs-Eu(III) Hybrids

Authors

  • Laura Maggini,

    1. Department of Chemistry and Namur Research College (NARC), University of Namur (UNamur), Rue de Bruxelles 61, 5000 Namur, Belgium
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  • Mingjie Liu,

    1. RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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  • Yasuhiro Ishida,

    1. RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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  • Davide Bonifazi

    Corresponding author
    1. Department of Chemistry and Namur Research College (NARC), University of Namur (UNamur), Rue de Bruxelles 61, 5000 Namur, Belgium
    2. Department of Chemical and Pharmaceutical Sciences, INSTM UdR Trieste, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy
    • Department of Chemistry and Namur Research College (NARC), University of Namur (UNamur), Rue de Bruxelles 61, 5000 Namur, Belgium.
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  • Dedicated to Prof. François Diederich

Abstract

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The anisotropic emission properties of an Eu(III)-MWCNTs-based nanocomposite PNIPAAm hydrogel is induced upon application of a 10 T magnetic field, the latter dictating the alignment of the carbon nanotubes. This structuration creates directional highways for light to be preferentially absorbed, giving rise to orientation-dependent light emission intensity. Thermal control of the transparency of the aqueous matrix also allowed a stimulus-induced switching of the materials’ emission properties.

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