Ecotoxicity risk assessment of copper oxide nanoparticles in Duttaphrynus melanostictus tadpoles

Murthy, Meesala Krishna; Khandayataray, Pratima; Mohanty, Chandra Sekhar

doi:10.1016/j.chemosphere.2023.137754

Cited by 4 publications

(2 citation statements)

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“…Recent publications show potential effects in different organisms, including long-term effects in Daphnia magna [14,15], as well as alterations at the molecular level [16] in Daphnia magna upon exposure to magnetic r-GO supporting anatase and γ-Fe 2 O 3 NP nanocomposites. Moreover, current research also shows the ecotoxicological effects of copper oxide nanoparticles on amphibians related with the production of reactive oxygen species (ROS) [17]. The effects of TiO 2 are also well reported in the literature, including a set of representative EC50 values based on studies at multiple trophic levels [18].…”

Section: Introductionmentioning

confidence: 71%

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Insights into the Potential Effects of Micro(nano)plastic-Containing Nanoparticles in the Environment

Fito López,

Díaz Soler,

Guillem-Amat

et al. 2023

Sustainability

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Micro(nano)plastics (MNPs) can be generated from a variety of sources, including the breakdown of larger plastic items, the abrasion of synthetic textiles, and the fragmentation of plastic waste. These particles can become airborne and be transported by wind, potentially leading to their presence in the atmosphere. Due to their widespread applications, ZnO particles at the nanometer range have attractive proprieties that make them appropriate for being combined with polymers, especially PET (polyethylene terephthalate), the most commonly used polymer in the packaging sector. Nevertheless, ZnO NPs have a potential ecotoxicity that could be reflected in PET-ZnO composites reaching the environment in the form of micro(nano)plastics. To assess the potential release of PET-ZnO, as well as the ecotoxicity of ZnO NPs, PET-ZnO and weathered composites were analyzed. The ecotoxicity of PET-ZnO was tested in organisms representing different food-chain levels and compared to ZnO NPs’ ecotoxicity. The composite form contained a stable dispersion of around 3.7% of NPs uniformly scattered in the polymeric matrix. ZnO NPs were toxic to Vibrio fischeri and Brachionus calyciflorus. PET-ZnO did not exhibited any toxicity to the organisms studied, while a moderate level of toxicity was observed for the weathered forms.

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Section: Introductionmentioning

confidence: 71%

“…With Vibrio fischeri, the toxic effect of CuSO 4 was studied as reference. In this case, testing concentrations were chosen based on previous studies [16,17]. There was no reference toxicant for the plants, so this bioassay was tested with Milli-Q water to find out if the seeds germinated properly.…”

Section: Ecotoxicity Bioassays 221 Bioassays Validationmentioning

confidence: 99%