Anisotropically luminescent hydrogels containing magnetically-aligned MWCNTs-Eu(III) hybrids

Laura Maggini; Mingjie Liu; Yasuhiro Ishida; Davide Bonifazi

doi:10.1002/adma.201204698

Anisotropically luminescent hydrogels containing magnetically-aligned MWCNTs-Eu(III) hybrids

Adv Mater. 2013 May 7;25(17):2462-7. doi: 10.1002/adma.201204698. Epub 2013 Feb 1.

Authors

Laura Maggini¹, Mingjie Liu, Yasuhiro Ishida, Davide Bonifazi

Affiliation

¹ Department of Chemistry and Namur Research College (NARC), University of Namur (UNamur), Namur, Belgium.

PMID: 23371763
DOI: 10.1002/adma.201204698

Abstract

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Acrylic Resins / chemistry*
Anisotropy
Europium / chemistry*
Europium / radiation effects
Luminescent Measurements / methods*
Magnetic Fields
Materials Testing
Molecular Conformation / radiation effects
Nanotubes, Carbon / chemistry*
Nanotubes, Carbon / radiation effects*
Nanotubes, Carbon / ultrastructure
Particle Size
Surface Properties

Substances

Acrylic Resins
Nanotubes, Carbon
poly-N-isopropylacrylamide
Europium