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EPR Study of Visible Light-Induced ROS Generation by Nanoparticles of ZnO

Lipovsky, Anat, Tzitrinovich, Zeev, Friedmann, Harry, Applerot, Guy, Gedanken, Aharon, Lubart, Rachel·2009·The Journal of Physical Chemistry C

Abstract

Nanoparticles of ZnO have been shown to have marked antibacterial and anticancerous activities. The toxic effect of ZnO has been found to exist due to a reaction of the ZnO surface with water. In the present work electron-spin resonance measurements revealed that aqueous suspensions of small nanoparticles of ZnO produce increased levels of reactive oxygen species, namely hydroxyl radicals and singlet oxygen. Interestingly, a remarkable enhancement of the oxy radicals, was detected when the ZnO water suspension had been irradiated with blue (400−500 nm) light. The characterization of the mechanism of light-induced oxy radicals formation by ZnO nanoparticles would contribute to its use as a sterilization agent.

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Metadata

Authors
Lipovsky, A., Tzitrinovich, Z., Friedmann, H., Applerot, G., Gedanken, A., & Lubart, R.
Venue
The Journal of Physical Chemistry C
Published
2009-08-12
Volume
113
Issue
36
Pages
15997-16001
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2039844143
Cited by
268
References
0
FWCI
4.79
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: EPR Study of Visible Light-Induced ROS Generation by Nanoparticles of ZnO. https://app.cochat.ai/papers/10.1021/jp904864g
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Lipovsky, A., Tzitrinovich, Z., Friedmann, H., Applerot, G., Gedanken, A., & Lubart, R. (2009). EPR Study of Visible Light-Induced ROS Generation by Nanoparticles of ZnO. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp904864g

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.