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Effect of Nano-Al 2 O 3 on the Toxicity and Oxidative Stress of Copper towards Scenedesmus obliquus

Author

Listed:
  • Xiaomin Li

    (Environment Science and Engineering, School of Space and Environment, Beihang University, Beijing 100191, China)

  • Suyang Zhou

    (Environment Science and Engineering, School of Space and Environment, Beihang University, Beijing 100191, China)

  • Wenhong Fan

    (Environment Science and Engineering, School of Space and Environment, Beihang University, Beijing 100191, China)

Abstract

Nano-Al 2 O 3 has been widely used in various industries; unfortunately, it can be released into the aquatic environment. Although nano-Al 2 O 3 is believed to be of low toxicity, it can interact with other pollutants in water, such as heavy metals. However, the interactions between nano-Al 2 O 3 and heavy metals as well as the effect of nano-Al 2 O 3 on the toxicity of the metals have been rarely investigated. The current study investigated copper toxicity in the presence of nano-Al 2 O 3 towards Scenedesmus obliquus . Superoxide dismutase activity and concentration of glutathione and malondialdehyde in cells were determined in order to quantify oxidative stress in this study. Results showed that the presence of nano-Al 2 O 3 reduced the toxicity of Cu towards S. obliquus . The existence of nano-Al 2 O 3 decreased the growth inhibition of S. obliquus . The accumulation of copper and the level of oxidative stress in algae were reduced in the presence of nano-Al 2 O 3 . Furthermore, lower copper accumulation was the main factor that mitigated copper toxicity with the addition of nano-Al 2 O 3 . The decreased copper uptake could be attributed to the adsorption of copper onto nanoparticles and the subsequent decrease of available copper in water.

Suggested Citation

  • Xiaomin Li & Suyang Zhou & Wenhong Fan, 2016. "Effect of Nano-Al 2 O 3 on the Toxicity and Oxidative Stress of Copper towards Scenedesmus obliquus," IJERPH, MDPI, vol. 13(6), pages 1-15, June.
    • Handle: RePEc:gam:jijerp:v:13:y:2016:i:6:p:575-:d:71727
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    Cited by:

    1. Tingting Zhang & Mei Shi & Hao Yan & Cheng Li, 2022. "Effects of Salicylic Acid on Heavy Metal Resistance in Eukaryotic Algae and Its Mechanisms," IJERPH, MDPI, vol. 19(20), pages 1-12, October.
    2. Merve Ozkaleli & Ayca Erdem, 2018. "Biotoxicity of TiO 2 Nanoparticles on Raphidocelis subcapitata Microalgae Exemplified by Membrane Deformation," IJERPH, MDPI, vol. 15(3), pages 1-12, February.

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