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Ecotoxicity of Heteroaggregates of Polystyrene Nanospheres in Chironomidae and Amphibian

Due to their various properties as polymeric materials, plastics have been produced, used and ultimately discharged into the environment. Although some studies have shown their negative impacts on the marine environment, the effects of plastics on freshwater organisms are still poorly studied, while...

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Autores principales: Mouchet, Florence, Rowenczyk, Laura, Minet, Antoine, Clergeaud, Fanny, Silvestre, Jérôme, Pinelli, Eric, Ferriol, Jessica, Leflaive, Joséphine, Ten-Hage, Loïc, Gigault, Julien, Ter Halle, Alexandra, Gauthier, Laury
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370236/
https://www.ncbi.nlm.nih.gov/pubmed/35957161
http://dx.doi.org/10.3390/nano12152730
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author Mouchet, Florence
Rowenczyk, Laura
Minet, Antoine
Clergeaud, Fanny
Silvestre, Jérôme
Pinelli, Eric
Ferriol, Jessica
Leflaive, Joséphine
Ten-Hage, Loïc
Gigault, Julien
Ter Halle, Alexandra
Gauthier, Laury
author_facet Mouchet, Florence
Rowenczyk, Laura
Minet, Antoine
Clergeaud, Fanny
Silvestre, Jérôme
Pinelli, Eric
Ferriol, Jessica
Leflaive, Joséphine
Ten-Hage, Loïc
Gigault, Julien
Ter Halle, Alexandra
Gauthier, Laury
author_sort Mouchet, Florence
collection PubMed
description Due to their various properties as polymeric materials, plastics have been produced, used and ultimately discharged into the environment. Although some studies have shown their negative impacts on the marine environment, the effects of plastics on freshwater organisms are still poorly studied, while they could be widely in contact with this pollution. The current work aimed to better elucidate the impact and the toxicity mechanisms of two kinds of commercial functionalized nanoplastics, i.e., carboxylated polystyrene microspheres of, respectively, 350 and 50 nm (PS350 and PS50), and heteroaggregated PS50 with humic acid with an apparent size of 350 nm (PSHA), all used at environmental concentrations (0.1 to 100 µg L(−1)). For this purpose, two relevant biological and aquatic models—amphibian larvae, Xenopus laevis, and dipters, Chironomus riparius—were used under normalized exposure conditions. The acute, chronic, and genetic toxicity parameters were examined and discussed with regard to the fundamental characterization in media exposures and, especially, the aggregation state of the nanoplastics. The size of PS350 and PSHA remained similar in the Xenopus and Chironomus exposure media. Inversely, PS50 aggregated in both exposition media and finally appeared to be micrometric during the exposition tests. Interestingly, this work highlighted that PS350 has no significant effect on the tested species, while PS50 is the most prone to alter the growth of Xenopus but not of Chironomus. Finally, PSHA induced a significant genotoxicity in Xenopus.
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spelling pubmed-93702362022-08-12 Ecotoxicity of Heteroaggregates of Polystyrene Nanospheres in Chironomidae and Amphibian Mouchet, Florence Rowenczyk, Laura Minet, Antoine Clergeaud, Fanny Silvestre, Jérôme Pinelli, Eric Ferriol, Jessica Leflaive, Joséphine Ten-Hage, Loïc Gigault, Julien Ter Halle, Alexandra Gauthier, Laury Nanomaterials (Basel) Article Due to their various properties as polymeric materials, plastics have been produced, used and ultimately discharged into the environment. Although some studies have shown their negative impacts on the marine environment, the effects of plastics on freshwater organisms are still poorly studied, while they could be widely in contact with this pollution. The current work aimed to better elucidate the impact and the toxicity mechanisms of two kinds of commercial functionalized nanoplastics, i.e., carboxylated polystyrene microspheres of, respectively, 350 and 50 nm (PS350 and PS50), and heteroaggregated PS50 with humic acid with an apparent size of 350 nm (PSHA), all used at environmental concentrations (0.1 to 100 µg L(−1)). For this purpose, two relevant biological and aquatic models—amphibian larvae, Xenopus laevis, and dipters, Chironomus riparius—were used under normalized exposure conditions. The acute, chronic, and genetic toxicity parameters were examined and discussed with regard to the fundamental characterization in media exposures and, especially, the aggregation state of the nanoplastics. The size of PS350 and PSHA remained similar in the Xenopus and Chironomus exposure media. Inversely, PS50 aggregated in both exposition media and finally appeared to be micrometric during the exposition tests. Interestingly, this work highlighted that PS350 has no significant effect on the tested species, while PS50 is the most prone to alter the growth of Xenopus but not of Chironomus. Finally, PSHA induced a significant genotoxicity in Xenopus. MDPI 2022-08-08 /pmc/articles/PMC9370236/ /pubmed/35957161 http://dx.doi.org/10.3390/nano12152730 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mouchet, Florence
Rowenczyk, Laura
Minet, Antoine
Clergeaud, Fanny
Silvestre, Jérôme
Pinelli, Eric
Ferriol, Jessica
Leflaive, Joséphine
Ten-Hage, Loïc
Gigault, Julien
Ter Halle, Alexandra
Gauthier, Laury
Ecotoxicity of Heteroaggregates of Polystyrene Nanospheres in Chironomidae and Amphibian
title Ecotoxicity of Heteroaggregates of Polystyrene Nanospheres in Chironomidae and Amphibian
title_full Ecotoxicity of Heteroaggregates of Polystyrene Nanospheres in Chironomidae and Amphibian
title_fullStr Ecotoxicity of Heteroaggregates of Polystyrene Nanospheres in Chironomidae and Amphibian
title_full_unstemmed Ecotoxicity of Heteroaggregates of Polystyrene Nanospheres in Chironomidae and Amphibian
title_short Ecotoxicity of Heteroaggregates of Polystyrene Nanospheres in Chironomidae and Amphibian
title_sort ecotoxicity of heteroaggregates of polystyrene nanospheres in chironomidae and amphibian
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370236/
https://www.ncbi.nlm.nih.gov/pubmed/35957161
http://dx.doi.org/10.3390/nano12152730
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