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Inactivation of the enveloped virus phi6 with hydrodynamic cavitation.
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- Author(s): Zupanc M;Zupanc M; Zevnik J; Zevnik J; Filipić A; Filipić A; Gutierrez-Aguirre I; Gutierrez-Aguirre I; Ješelnik M; Ješelnik M; Košir T; Košir T; Ortar J; Ortar J; Dular M; Dular M; Petkovšek M; Petkovšek M
- Source:
Ultrasonics sonochemistry [Ultrason Sonochem] 2023 May; Vol. 95, pp. 106400. Date of Electronic Publication: 2023 Apr 11.- Publication Type:
Journal Article- Language:
English - Source:
- Additional Information
- Source: Publisher: Elsevier Science Country of Publication: Netherlands NLM ID: 9433356 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-2828 (Electronic) Linking ISSN: 13504177 NLM ISO Abbreviation: Ultrason Sonochem Subsets: MEDLINE
- Publication Information: Publication: Amsterdam : Elsevier Science
Original Publication: Oxford : Butterworth Heinemann, c1994- - Subject Terms:
- Abstract: The COVID -19 pandemic reminded us that we need better contingency plans to prevent the spread of infectious agents and the occurrence of epidemics or pandemics. Although the transmissibility of SARS-CoV-2 in water has not been confirmed, there are studies that have reported on the presence of infectious coronaviruses in water and wastewater samples. Since standard water treatments are not designed to eliminate viruses, it is of utmost importance to explore advanced treatment processes that can improve water treatment and help inactivate viruses when needed. This is the first study to investigate the effects of hydrodynamic cavitation on the inactivation of bacteriophage phi6, an enveloped virus used as a SARS-CoV-2 surrogate in many studies. In two series of experiments with increasing and constant sample temperature, virus reduction of up to 6.3 logs was achieved. Inactivation of phi6 at temperatures of 10 and 20 °C occurs predominantly by the mechanical effect of cavitation and results in a reduction of up to 4.5 logs. At 30 °C, the reduction increases to up to 6 logs, where the temperature-induced increased susceptibility of the viral lipid envelope makes the virus more prone to inactivation. Furthermore, the control experiments without cavitation showed that the increased temperature alone is not sufficient to cause inactivation, but that additional mechanical stress is still required. The RNA degradation results confirmed that virus inactivation was due to the disrupted lipid bilayer and not to RNA damage. Hydrodynamic cavitation, therefore, has the potential to inactivate current and potentially emerging enveloped pathogenic viruses in water at lower, environmentally relevant temperatures.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.) - Contributed Indexing: Keywords: Enveloped viruses; Hydrodynamic cavitation; Phi6; SARS-CoV-2; Virus inactivation; Water decontamination
- Publication Date: Date Created: 20230415 Date Completed: 20231129 Latest Revision: 20231129
- Publication Date: 20231130
- Accession Number: PMC10085970
- Accession Number: 10.1016/j.ultsonch.2023.106400
- Accession Number: 37060711
- Source:
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