Institute of Plant Genetics, Breeding and Biotechnology, Faculty of Agrobioengineering, University of Life Sciences in Lublin, Poland; Department of Environmental Chemistry, Faculty of Chemistry, University of Marie Skłodowska-Curie, Lublin, Poland.
Department of Environmental Chemistry, Faculty of Chemistry, University of Marie Skłodowska-Curie, Lublin, Poland.
J Hazard Mater. 2017 Jun 5;331:200-209. doi: 10.1016/j.jhazmat.2017.02.028. Epub 2017 Feb 24.
An increasing production and using of nanoproducts results in releasing and dispersing nanoparticles (NPs) in the environment. Being released into various environment components, NPs may interact with numerous pollutants, including other NPs. This research aimed at assessing toxicity of combined binary mixtures of NPs. The study focused on assessing mixtures of NPs believed to be toxic (nano-ZnO+nano-CuO) and nano-ZnO/nano-CuO with the ones that are insignificantly toxic or non-toxic NPs (nano-TiO/nano-CrO/nano-FeO). Toxicity of combined mixtures proved comparable to toxicity of individual mixtures of NPs (the sum of effects triggered by individual types of NPs comprising respective mixtures). Toxicity evaluation was based on two parameters: seed germination and inhibition of root growth with respect to four plant species: Lepidium sativum, Linum utisassimmum, Cucumis sativus and Triticum aestivum. The findings showed combined mixtures of NPs to be significantly less toxic in comparison to individual mixtures, irrespective of their components. Within the scope of concentrations used, greatest differences between the toxicity of mixtures were reported at the 100mgL concentration. Toxicity levels of combined and individual mixtures might have been determined by a lower total concentration of Zn and Cu metals and a greater aggregation of particles in combined mixtures than in individual mixtures.
随着纳米产品的产量和使用量不断增加，纳米颗粒（NPs）在环境中释放和分散。由于被释放到各种环境成分中，NPs 可能会与许多污染物相互作用，包括其他 NPs。本研究旨在评估纳米颗粒二元混合物的毒性。该研究侧重于评估被认为具有毒性的纳米颗粒混合物（纳米 ZnO+纳米 CuO）和纳米 ZnO/纳米 CuO 与那些毒性较小或无毒的纳米颗粒（纳米 TiO2/纳米 Cr2O3/纳米 FeO）的混合物。结果表明，与单一纳米颗粒混合物（各自混合物中所含的不同类型纳米颗粒的综合作用）的毒性相比，组合混合物的毒性相当。毒性评估基于两个参数：种子发芽和四种植物（蕹菜、亚麻、黄瓜和小麦）的根生长抑制。无论混合物的组成如何，与单一混合物相比，组合混合物的毒性明显更低。在所使用的浓度范围内，在 100mg/L 浓度下，混合物的毒性差异最大。组合和单一混合物的毒性水平可能是由于组合混合物中 Zn 和 Cu 金属的总浓度较低，以及颗粒的团聚程度较大所致。
