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Research Article

JCDR. 2021; 12(4): 180-188

Mechanism Of Toxicity Of Copper Oxide Nanoparticles. A Review Study.

Sarah Mohamed Mowafy, AbdelmonemAwad Hegazy,Samaa Salah Abd El-Fatah, Dalia A. Mandour.


Copper is an essential trace element and has important role in many metabolic and chemical processes in cells
and tissues.Due to their flexible properties, copper-based nanoparticles have been used in many industrial,
chemical, electronic and medical applications. As a result of these wide applications exposures of human to
these nanoparticles are increased. Oxidative stress and reactive oxygen species (ROS) production are considered
the main mechanism by which copper oxide nanoparticles (CUONPs) induce toxicity. Brain is most susceptible
to toxicity by CUONPs due to its high content of unsaturated fatty acids and to the relative paucity of
antioxidant enzymes in the brain tissue compared with other organs.

Key words: copper, copper oxide nanoparticle, toxicity, neurotoxicity

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