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. 2019 Dec 27;14:10105–10117. doi: 10.2147/IJN.S225594

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© 2019 Kuthati et al.

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Absorption spectra of DPPH and oxidation of DPPH radicals. (A) As DPPH radicals are scavenged by the MONPs, there is a decrease in absorbance at 517nm which is monitored by ultraviolet-visible spectroscopy (B) DPPH free radical scavenging percentage at different concentrations of MONPs.

Abbreviations: MONPs, manganese oxide nanoparticles; DPPH, 2,2-diphenyl-2-picrylhydrazyl hydrate.