Toxicity of copper oxide nanoparticles to Neotropical species Ceriodaphnia silvestrii and Hyphessobrycon eques

• Published in: Environmental pollution (1987) 2018-12, Vol.243 (Pt A), p.723-733
• Main Authors: Mansano, Adrislaine S., Souza, Jaqueline P., Cancino-Bernardi, Juliana, Venturini, Francine P., Marangoni, Valéria S., Zucolotto, Valtencir
• Format: Article
• Language: English
• Subjects: Animals; Aquatic Organisms - drug effects; Aquatic Organisms - growth & development; Characidae - growth & development; Chronic toxicity; Cladocera - drug effects; Cladocera - growth & development; Copper - toxicity; Copper oxide nanoparticles; Cytotoxicity; Environmental risk; Gills - metabolism; Metal Nanoparticles - toxicity; Oxidative stress; Oxidative Stress - drug effects; Reactive Oxygen Species - metabolism; Water Pollutants, Chemical - toxicity
• ISSN: 0269-7491; 1873-6424
• DOI: 10.1016/j.envpol.2018.09.020

The increase of production and consumption of copper oxide nanostructures in several areas contributes to their release into aquatic ecosystems. Toxic effects of copper oxide nanoparticles (CuO NPs), in particular, on tropical aquatic organisms are still unknown, representing a risk for biota. In this study, the effects of rod-shaped CuO NPs on the Neotropical species Ceriodaphnia silvestrii and Hyphessobrycon eques were investigated. We also compared the toxicity of CuO NPs and CuCl2 on these species to investigate the contribution of particles and cupper ions to the CuO NPs toxicity. Considering the low copper ions release from CuO NPs (