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一个全面的生态毒性研究二硫化物纳米板与土壤生物中的散装形式对比

Joana Santos¹, Angela Barreto¹, Cristiana Fernandes¹

¹Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal.

Nanomaterials (Basel, Switzerland)

|December 22, 2023

概括

二硫化物纳米颗粒 (MoS2 NPs) 根据形状对土壤生物有不同的影响. 大量MoS2在Enchytraeus crypticus和Folsomia candida中比2D MoS2纳米片造成了更多的生殖和DNA损伤.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
纳米技术纳米技术

背景情况:

二硫化物 (MoS2) 纳米粒子 (NP) 的使用越来越多,引发了对土壤生态系统积累的担忧.
关于MoS2 NP对土壤生物的影响的研究有限.

研究的目的:

为了研究二维 (2D) MoS2纳米片和散装MoS2对土壤无脊椎动物Enchytraeus crypticus和Folsomia candida的生态毒理学影响.
为了比较不同MoS2形式对生物体生存,行为,繁殖和DNA完整性的影响.

主要方法:

暴露E. crypticus和F. candida在不同度 (1562500毫克/公斤) 的散装MoS2和2D MoS2NP中.
在指定的时间段内评估生存,回避行为,繁殖 (E. crypticus) 和DNA完整性 (F. candida).

主要成果:

生存和避免行为不受MoS2形式的影响.
与2D MoS2 NP相比,批量MoS2对生殖和DNA完整性产生了更显著的影响.
E. crypticus的繁殖对度敏感,而F. candida显示DNA损伤,特别是大量的MoS2.

结论:

陆地生物对2D MoS2 NPs和大量的MoS2.2表现出不同的反应.
风险评估必须考虑MoS2NP的特定形式,因为生态毒理影响不同.
需要进一步的研究才能充分了解MoS2 NP在土壤中的积累对环境的影响.

关键词:

彗星测试试验彗星测试试验工程制造的纳米材料遗传毒性遗传毒性遗传毒性遗传毒性多个终点方法的多个终点方法.纳米毒性纳米毒性陆地无脊椎动物

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