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Article Dans Une Revue Comptes Rendus Géoscience Année : 2011

Manufactured metal and metal-oxide nanoparticles: Properties and perturbing mechanisms of their biological activity in ecosystems

Résumé

The inorganic manufactured nanoparticles as TiO(2), Ag degrees, the iron oxides and CeO(2) are more and more present in various manufactured products and in the aqueous media (TiO(2)). Their dispersion in the ecosystems during their life cycle will be associated with interactions with biota (plants, bacteria, fishes). The present work shows strong relations between particular physical chemical properties of very small nanoparticles (size < 30 nm) and biological activity perturbations. It is shown that Ag degrees and CeO(2) act at very low concentrations. TiO(2) act via the ROS production due to their photo-reactivity. (C) 2011 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.

Dates et versions

hal-01426205 , version 1 (04-01-2017)

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Jean-Yves Bottero, Melanie Auffan, Jérôme Rose, Céline Botta, Jérôme Labille, et al.. Manufactured metal and metal-oxide nanoparticles: Properties and perturbing mechanisms of their biological activity in ecosystems. Comptes Rendus Géoscience, 2011, 343 (2-3, SI), pp.168-176. ⟨10.1016/j.crte.2011.01.001⟩. ⟨hal-01426205⟩
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