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Laura Maggini, Mingjie Liu, Yasuhiro Ishida and Davide Bonifazi Anisotropically Luminescent Hydrogels Containing Magnetically-Aligned MWCNTs-Eu(III) Hybrids Advanced Materials 25

Version of Record online: 1 FEB 2013 | DOI: 10.1002/adma.201204698

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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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