Extended Investigations on Luminescent s2[Mo6Br14]@SiO2Nanoparticles: Physico-Structural Characterizations and Toxicity Studies - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Journal of Physical Chemistry C Année : 2013

Extended Investigations on Luminescent s2[Mo6Br14]@SiO2Nanoparticles: Physico-Structural Characterizations and Toxicity Studies

Tangi Aubert
Chrystelle Neaime
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Sylvie Jeanne
Fabien Grasset

Résumé

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 Cs2[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, 29Si 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.
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Dates et versions

hal-00907963 , version 1 (22-10-2021)

Identifiants

Citer

Tangi Aubert, Francisco Cabello-Hurtado, Marie-Andrée Esnault, Chrystelle Neaime, Dominique Lebret-Chauvel, et al.. Extended Investigations on Luminescent s2[Mo6Br14]@SiO2Nanoparticles: Physico-Structural Characterizations and Toxicity Studies. Journal of Physical Chemistry C, 2013, 117 (39), pp.20154-20163. ⟨10.1021/jp405836q⟩. ⟨hal-00907963⟩
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