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Novel bifunctional magnetic-near-infrared luminescent nanocomposites: near-infrared emission from Nd and Yb

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Abstract

Two kinds of bifunctional architectures combining the useful functions of a superparamagnetic nanoparticle and a near-infrared luminescent lanthanide complex into one material (denoted as Fe3O4@SiO2@Ln-PABI, PABI = N-(4-benzoic acid-yl)-N′-(propyltriethoxysilyl)urea, Ln = Nd and Yb) have been prepared via two main steps by a modified Stöber method and the layer-by-layer assembly technique. The two obtained architectures have been characterized by FTIR spectra, X-ray diffraction, transmission electron microscopy, emission spectroscopy, and vibrating sample magnetometer. These bifunctional nanocomposites exhibit superparamagnetic behaviour, high fluorescence intensity and color purity. Such materials with superparamagnetic and lanthanide-based near-infrared luminescence properties have potential applications in the field of biological luminescent labels.

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Authors and Affiliations

  1. College of Chemistry & Chemical Engineering, Inner Mongolia University, Hohhot, 010020, Inner Mongolia, P. R. China

    Shiyong Yu & Haiquan Su

  2. Department of Physics, CICECO, University of Aveiro, 3810-193, Aveiro, Portugal

    Shiyong Yu, Lianshe Fu & Yingjie Zhou

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  1. Shiyong Yu
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  2. Lianshe Fu
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  3. Yingjie Zhou
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Yu, S., Fu, L., Zhou, Y. et al. Novel bifunctional magnetic-near-infrared luminescent nanocomposites: near-infrared emission from Nd and Yb. Photochem Photobiol Sci 10, 548–553 (2011). https://doi.org/10.1039/c0pp00293c

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  • DOI: https://doi.org/10.1039/c0pp00293c

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