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

作者：Bottero Jean Yves^*; Auffan Melanie; Rose Jerome; Mouneyrac Catherine; Botta Celine; Labille Jerome; Masion Armand; Thill Antoine; Chaneac Corinne

来源：Comptes Rendus Geoscience, 2011, 343(2-3): 168-176.

DOI：10.1016/j.crte.2011.01.001

• Nanoparticles
• Metals
• Oxides
• Surface properties
• Exotoxicity
• Ecosystems
• Oxydo-reduction

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.

• 出版日期2011-3
• 单位中国地震局