Issue 10, 2010
From the journal:

Journal of Materials Chemistry

Mesoporous silicananoparticles combining two-photon excited fluorescence and magnetic properties†

Elena Chelebaeva,a   Laurence Raehm,a   Jean-Olivier Durand,*a   Yannick Guari,*a   Joulia Larionova,a   Christian Guérin,a   Alexandre Trifonov,b   Marc Willinger,c   Kalaivani Thangavel,de   Alessandro Lascialfari,def   Olivier Mongin,g   Youssef Mirg  and  Mireille Blanchard-Desce.g  

* Corresponding authors

a Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1, Chimie Moléculaire et Organisation du Solide, Université Montpellier II, Place E. Bataillon, Montpellier cedex 5, France
Fax: +(33) 4 67 14 38 52

b G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Science, Tropinina 49, GSP-44S, Nizhny Novgorod, Russia

c Department of Chemistry, CICECO, University of Aveiro, Aveiro, Portugal

d Dipartimento di Scienze Molecolari Applicate ai Biosistemi, Università degli studi di Milano, Milano, Italy

e CNR-INFM-S3 NRC, Modena, Italy

f Dipartimento di Fisica “A. Volta”, Università degli studi di Pavia, Pavia, Italy

g Chimie et Photonique Moléculaires, CNRS UMR 6510, Campus de Beaulieu, Université Rennes 1, Rennes Cedex, France

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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Article information

DOI
https://doi.org/10.1039/B922052F
Article type
Paper
Submitted
21 Oct 2009
Accepted
10 Dec 2009
First published
26 Jan 2010

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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