Issue 13, 2012
From the journal:

Journal of Materials Chemistry

Sol–gel emulsion synthesis of biphotonic core–shell nanoparticles based on lanthanide doped organic–inorganic hybrid materials†

Xianmin Guo,bc   Jean-Louis Canet,ac   Damien Boyer,*ac   Arnaud Gautier*bc  and  Rachid Mahioubc  

* Corresponding authors

a Clermont Université, ENSCCF, Institut de Chimie de Clermont-Ferrand, BP 10448, F-63000 Clermont-Ferrand, France
E-mail: damien.boyer@ensccf.fr
Fax: +33 (0)4-73-40-71-08
Tel: +33 (0)4-73-40-76-47

b Clermont Université, UBP, Institut de Chimie de Clermont-Ferrand, BP 10448, F-63000 Clermont-Ferrand, France
E-mail: Arnaud.Gautier@univ-bpclermont.fr
Fax: +33 473-40-77-17
Tel: +33 473-40-76-46

c CNRS, UMR 6296, ICCF, F-63177 Aubière, France

Abstract

Eu3+ and Tb3+ complexes based on an organo-alkoxysilane derived from 4-azido dipicolinic acid by “click chemistry” were coated onto silica nanoparticles previously prepared by the water in oil emulsion method. Structural and optical properties of the resulting luminescent core–shell monodisperse (30 nm) nanohybrids were fully characterized by infrared and Raman spectroscopies as well as by electron microscopy. Fluorescence spectroscopy evidenced that an efficient ligand-to-Ln3+ energy transfer—both in the mono- and biphotonic modes—occurs. Furthermore, surface modification by amino groups was realized, paving the way for nanotags of biological interest.

Graphical abstract: Sol–gel emulsion synthesis of biphotonic core–shell nanoparticles based on lanthanide doped organic–inorganic hybrid materials

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Article information

DOI
https://doi.org/10.1039/C2JM15470F
Article type
Paper
Submitted
26 Oct 2011
Accepted
09 Jan 2012
First published
16 Feb 2012

J. Mater. Chem., 2012,22, 6117-6122

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Sol–gel emulsion synthesis of biphotonic core–shell nanoparticles based on lanthanide doped organic–inorganic hybrid materials

X. Guo, J. Canet, D. Boyer, A. Gautier and R. Mahiou, J. Mater. Chem., 2012, 22, 6117 DOI: 10.1039/C2JM15470F

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