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Issue 10, 2010
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Mesoporous silica nanoparticles combining two-photon excited fluorescence and magnetic properties

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Abstract

A new approach to the synthesis of multifunctional nanoparticles was developed by using covalent anchoring of cyano-bridged coordination polymer Ni2+/[Fe(CN)6]3 to the surface of two-photon dye-doped mesoporous silica nanoparticles. The obtained hybrid nanoparticles were studied by infrared (IR) spectroscopy, nitrogen adsorption (BET), X-ray diffraction, transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), luminescence, and magnetic analysis. The synthesis leads to homogeneously dispersed uni-shaped nanoparticles of around 100 nm in length that are coated with cyano-bridged metallic coordination polymer nanoparticles. These hybrid nanoparticles combine effective two-photon excited fluorescence, porosity, high transverse nuclear relaxivity values (i.e. the magnetic resonance imaging efficiency) and superparamagnetic properties.

Graphical abstract: Mesoporous silica nanoparticles combining two-photon excited fluorescence and magnetic properties

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Publication details

The article was received on 21 Oct 2009, accepted on 10 Dec 2009 and first published on 26 Jan 2010


Article type: Paper
DOI: 10.1039/B922052F
Citation: J. Mater. Chem., 2010,20, 1877-1884
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    Mesoporous silica nanoparticles combining two-photon excited fluorescence and magnetic properties

    E. Chelebaeva, L. Raehm, J. Durand, Y. Guari, J. Larionova, C. Guérin, A. Trifonov, M. Willinger, K. Thangavel, A. Lascialfari, O. Mongin, Y. Mir and M. Blanchard-Desce., J. Mater. Chem., 2010, 20, 1877
    DOI: 10.1039/B922052F

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