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

Environmental Pollution
Adrislaine S MansanoValtencir Zucolotto

Abstract

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 (<1%), our results revealed that the toxicity of CuO NPs to C. silvestrii and H. eques was mainly induced by the NPs. The 48 h EC50 for C. silvestrii was 12.6 ± 0.7 μg Cu L-1 and for H. eques the 96 h LC50 was 211.4 ± 57.5 μg Cu L-1 of CuO NPs. There was significant decrease in reproduction, feeding inhibition and increase in reactive oxidative species (ROS) generation in C. silvestrii exposed to CuO NPs. In fish H. eques, sublethal exposure to CuO NPs caused an increase in ROS generation in gill cells and an increase in cells number that were in early apoptotic and necrotic stages. Our results...Continue Reading

Citations

Sep 6, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Patrick Amoatey, Mahad Said Baawain
May 16, 2019·Drug and Chemical Toxicology·Aasma NoureenAbdul Shakoor Chaudhry
Jun 11, 2020·Nanomaterials·Nemi MalhotraChung-Der Hsiao
Aug 30, 2020·Archives of Environmental Contamination and Toxicology·Raquel Aparecida MoreiraEvaldo Luiz Gaeta Espindola
Jun 17, 2020·Environmental Pollution·Lays de Oliveira Gonçalves AlhoMariada Graça Gama Melão
Jan 17, 2021·Environmental Science and Pollution Research International·Jaqueline P SouzaValtencir Zucolotto
Jul 16, 2021·Environmental Toxicology and Chemistry·Renan Castelhano GebaraMaria da Graça Gama Melão
Sep 11, 2021·Environmental Science and Pollution Research International·Wenqiu HuangJiangtao Wang
Sep 2, 2021·Water Environment Research : a Research Publication of the Water Environment Federation·María Florencia GutierrezJimena Cazenave

❮ Previous
Next ❯

Related Concepts

Related Feeds

Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis

Related Papers

Environmental Science and Pollution Research International
Adrislaine S MansanoMirna H R Seleghim
Toxicology in Vitro : an International Journal Published in Association with BIBRA
Ylva RodheLennart Möller
© 2022 Meta ULC. All rights reserved