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Organ biodistribution, clearance, and genotoxicity of orally administered zinc oxide nanoparticles in mice

Li, Ching-Hao, Shen, Chuan-Chou, Cheng, Yu-Wen, Huang, Shih-Hsuan, Wu, Chung-Che, Kao, Chen-Chieh, Liao, Jiunn-Wang, Kang, Jaw-Jou·2012·Nanotoxicology

Abstract

Abstract Understanding tissue biodistribution and clearance of zinc oxide nanoparticles (ZnO-NPs) is necessary for its risk assessment. Both fed and intraperitoneally injected ZnO-NPs (2.5 g/kg) were absorbed into circulation (within 30 min post-dosing), then biodistributed to the liver, spleen, and kidney. Intraperitoneally injected ZnO-NPs remained in serum for 72 h and could more effectively spread to the heart, lung, and testes, whereas the clearance for fed ZnO-NPs in serum began 6 h after oral administration. Compared with zinc oxide microparticles (ZnO-MPs), ZnO-NPs exhibited much higher absorptivity and tissue biodistribution in fed treatment. A greater fraction of fed ZnO-NPs localised in the liver resulted in transient histopathological lesions. However, superoxide generation and cytotoxicity were showed in vitro treatment with ZnO-NPs (above 20 μg/mL). Considering both in vitro and in vivo data, the ZnO-NPs induced acute liver toxicity which was in compliance with its absorption, biodistribution, and clearance.

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Metadata

Authors
Li, C.-H., Shen, C.-C., Cheng, Y.-W., Huang, S.-H., Wu, C.-C., Kao, C.-C., Liao, J.-W., & Kang, J.-J.
Venue
Nanotoxicology
Published
2011-09-27
Volume
6
Issue
7
Pages
746-756
ISSN
  • 1743-5390 (ISSN-L)
  • 1743-5404
OpenAlex
W1982566906
Cited by
244
References
2
FWCI
6.20
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Organ biodistribution, clearance, and genotoxicity of orally administered zinc oxide nanoparticles in mice. https://app.cochat.ai/papers/10.3109/17435390.2011.620717
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Li, C.-H., Shen, C.-C., Cheng, Y.-W., Huang, S.-H., Wu, C.-C., Kao, C.-C., Liao, J.-W., & Kang, J.-J. (2012). Organ biodistribution, clearance, and genotoxicity of orally administered zinc oxide nanoparticles in mice. Nanotoxicology. https://doi.org/10.3109/17435390.2011.620717

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