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- W4308259969 abstract "Abstract Nanomaterials are prospective candidates for the elimination of viruses due to their multimodal mechanisms of action. Here, we tested the antiviral potential of a largely unexplored nanoparticle of cerium dioxide (CeO 2 ). Two nano-CeO 2 with opposing surface charge, (+) and (−), were assessed for their capability to decrease the plaque forming units (PFU) of four enveloped and two non-enveloped viruses during 1-h exposure. Statistically significant antiviral activity towards enveloped coronavirus SARS-CoV-2 and influenza virus was registered already at 20 mg Ce/l. For other two enveloped viruses, transmissible gastroenteritis virus and bacteriophage φ6, antiviral activity was evidenced at 200 mg Ce/l. As expected, the sensitivity of non-enveloped viruses towards nano-CeO 2 was significantly lower. EMCV picornavirus showed no decrease in PFU until the highest tested concentration, 2000 mg Ce/l and MS2 bacteriophage showed slight non-monotonic response to high concentrations of nano-CeO 2 (−). Parallel testing of antiviral activity of Ce 3+ ions and SiO 2 nanoparticles allows to conclude that nano-CeO 2 activity was neither due to released Ce-ions nor nonspecific effects of nanoparticulates. Moreover, we evidenced higher antiviral efficacy of nano-CeO 2 compared with Ag nanoparticles. This result along with low antibacterial activity and non-existent cytotoxicity of nano-CeO 2 allow us to propose CeO 2 nanoparticles for specific antiviral applications." @default.
- W4308259969 created "2022-11-09" @default.
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- W4308259969 date "2022-11-05" @default.
- W4308259969 modified "2023-10-13" @default.
- W4308259969 title "Antiviral efficacy of cerium oxide nanoparticles" @default.
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- W4308259969 doi "https://doi.org/10.1038/s41598-022-23465-6" @default.
- W4308259969 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36335167" @default.
- W4308259969 hasPublicationYear "2022" @default.
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