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Toxicological Evaluation of Copper Oxide Nanoparticles using Allium cepa

Zorawar Singh and Navjot Kaur


DOI: 10.5281/zenodo.12606055



Development of nanoparticles is increasing due to their wide applications in various fields including sensing technologies, sieving properties, electronics and biomedical applications. Copper oxide (CuO) nanoparticles are being used in different fields of research. Hence their exposure to animals including humans is increasing. Thus there is a dire need to evaluate the toxicity of CuO nanoparticles using different plant and animal models. We procured copper oxide nanoparticles synthesized at pH 7 and 10 of the precursor solution. Different concentrations (0.1 and 0.01 g/100ml) were made and used for exposure treatments using Allium cepa. CuO nanoparticles showed a dose dependent toxicity in Allium cepa shoot length analysis test. A reduction in the shoot lengths was observed in the treated onion bulbs as compared to the controls. CuO nanoparticles synthesized at pH 10 were found to be more toxic as revealed by shorter shoot lengths as compared to pH7 treated samples.


Department of Zoology, Khalsa College, Amritsar, Punjab, India PIN: 143001


Singh Z and Kaur N (2024) Toxicological Evaluation of Copper Oxide Nanoparticles using Allium cepa. Environ Sci Arch 3(2): 1-6.


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