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Individual and binary exposure to nanoscales of silver, titanium dioxide, and silicon dioxide alters viability, growth, and reproductive system: Hidden indices to re-establish artemia as a toxicological model in saline waters
Environmental Pollution ( IF 7.6 ) Pub Date : 2023-05-29 , DOI: 10.1016/j.envpol.2023.121923
Mohammad Behzadi Tayemeh 1 , Hesamoddin Abaei 1 , Kirill Golokhvast 2 , Hamid Salari Joo 1 , Konstantin Pikula 3 , Seyed Ali Johari 1 , Borhan Mansouri 4
Affiliation  

This study evaluated and compared the individual and combined toxicity of AgNPs, TiO2NPs, and SiO2NPs to life cycle of A. salina. To this end, both stability and toxicity of AgNPs were determined in the presence of TiO2NPs and SiO2NPs. The colloidal stability of AgNPs decreased in the presence of the other two NPs, especially SiO2NPs. AgNPs displayed acute toxicity to A. salina, whereas SiO2NPs and TiO2NPs chronically induced toxicity in a concentration- and time-dependent manner during 28-day exposure. The experimental NPs significantly decreased the weight and length of A. salina and induced reproductive toxicity through perturbation in first brood timespan, sexual maturity, egg development time, egg pouch area, offspring quality, and fecundity. Exposure to AgNPs shifted the mode of reproduction in brine shrimp from ovoviviparity to oviparity, and also co-presence of AgNPs with SiO2NPs or TiO2NPs caused infertility. Generally, their individual toxicity was in order of AgNPs > TiO2NPs > SiO2NPs, and binary exposure to AgNPs-SiO2NPs appear to be more threatening than AgNPs-TiO2NPs to A. salina. Together, this study highlights that these nanoparticles could disrupt reproductive health of A. salina and lead to alterations in population dynamics and aquatic ecosystem balance.



中文翻译:

个体和二元暴露于纳米银、二氧化钛和二氧化硅会改变生存能力、生长和生殖系统:在盐水中重建卤虫毒理学模型的隐藏指标

本研究评估并比较了 AgNPs、TiO 2 NPs 和 SiO 2 NPs的单独和组合毒性与A的生命周期。盐沼。为此,在 TiO 2 NP 和 SiO 2 NP 存在的情况下测定了 AgNP 的稳定性和毒性。AgNPs 的胶体稳定性在其他两种 NPs,特别是 SiO 2 NPs的存在下降低。AgNPs 对A表现出急性毒性。salina , 而 SiO 2 NPs 和 TiO 2NPs 在 28 天暴露期间以浓度和时间依赖性方式慢性诱导毒性。实验性 NP 显着降低了A的重量和长度。salina并通过扰乱初育时间、性成熟度、卵发育时间、卵囊面积、后代质量和繁殖力来诱导生殖毒性。暴露于 AgNPs 将丰年虾的繁殖模式从卵胎生转变为卵生,并且 AgNPs 与 SiO 2 NPs 或 TiO 2 NPs的共存导致不育。通常,它们的个体毒性顺序为 AgNPs > TiO 2 NPs > SiO 2 NPs,并且二元暴露于 AgNPs-SiO 2NPs 似乎比 AgNPs-TiO 2 NPs 对A更具威胁性。盐沼。总之,这项研究强调这些纳米粒子可能会破坏A的生殖健康。盐沼并导致种群动态和水生生态系统平衡的改变。

更新日期:2023-05-30
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