What is the maximum concentration of Copper oxide nanoparticles which is safe for human contact applications?
Copper oxide nanoparticles are highly toxic: a comparison between metal oxide nanoparticles and carbon nanotubes.
Article Copper Oxide Nanoparticles Are Highly Toxic: A Comparison be...
Acute toxicity
LD50 Oral - Rat - > 2,500 mg/kg
LD50 Dermal - Rat - > 2,000 mg/kg
Please see the full data sheet attached
Cell death resulting from exposure to copper nanoparticles is concentration- and size-dependent.
You can see the World Health Organization guidelines for the allowable cocnentration of copper in the drinking water.
Thanks to all for valuable suggestions!
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