Extended Investigations on Luminescent Cs2[Mo6Br14]@SiO2 Nanoparticles: Physico-Structural Characterizations and Toxicity Studies

被引：68

作者：

Aubert, Tangi ^{[1
]}

Cabello-Hurtado, Francisco ^{[2
]}

Esnault, Marie-Andree ^{[2
]}

Neaime, Chrystelle ^{[1
]}

Lebret-Chauvel, Dominique ^{[1
]}

Jeanne, Sylvie ^{[1
]}

Pellen, Pascal ^{[1
]}

Roiland, Claire ^{[1
]}

Le Polles, Laurent ^{[1
]}

Saito, Noriko ^{[3
]}

Kimoto, Koji ^{[3
]}

Haneda, Hajime ^{[3
]}

Ohashi, Naoki ^{[3
]}

Grasset, Fabien ^{[1
]}

Cordier, Stephane ^{[1
]}

机构：

[1] Univ Rennes 1, Solid State Chem & Mat Grp, CNRS, UMR 6226,Inst Sci Chim Rennes, F-35042 Rennes, France

[2] Univ Rennes 1, Mech Origin Biodivers Team, CNRS, UMR Ecobio 6553, F-35042 Rennes, France

[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 39期

关键词：

DOPED SILICA NANOPARTICLES; TRANSITION-METAL CLUSTERS; QUANTUM DOTS; PHOTOPHYSICAL PROPERTIES; HEXANUCLEAR MOLYBDENUM; HALIDE CLUSTERS; FLUORESCENT; BR; ENCAPSULATION; NANOCRYSTALS;

D O I：

10.1021/jp405836q

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Functional silica nanoparticles and in particular luminescent silica nanoparticles constitute very promising candidates for many applications in the field of biotechnology, theranostics, and photonics. However, optimizing the design of such materials requires a deep understanding of their physicochemical properties. In this article are reported extended investigations on luminescent Cs-2[Mo6Br14]@SiO2 nanoparticles prepared by a water-in-oil microemulsion technique. We bring here new insights into the structure of such nanoparticles and its interplay with their optical properties. The structural interactions between the cluster units and the silica matrix were investigated and are discussed in details on the basis of FE-SEM, HAADF-STEM, ICP-OES, BET, Si-29 MAS NMR, and photoluminescence studies. As part of the risk evaluation before potential applications, the toxicity of the nanoparticles both on plants and on human cells was evaluated.

引用

页码：20154 / 20163

页数：10

共 51 条

[41] Conjugation of biomolecules with luminophore-doped silica nanoparticles for photostable biomarkers [J].