5 results on '"Filipić A"'
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2. Inactivation of the enveloped virus phi6 with hydrodynamic cavitation
- Author
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Mojca Zupanc, Jure Zevnik, Arijana Filipić, Ion Gutierrez-Aguirre, Meta Ješelnik, Tamara Košir, Jernej Ortar, Matevž Dular, and Martin Petkovšek
- Subjects
Enveloped viruses ,Phi6 ,SARS-CoV-2 ,Virus inactivation ,Hydrodynamic cavitation ,Water decontamination ,Chemistry ,QD1-999 ,Acoustics. Sound ,QC221-246 - 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.
- Published
- 2023
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3. Hydrodynamic cavitation efficiently inactivates potato virus Y in water
- Author
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Filipić, Arijana, Lukežič, Tadeja, Bačnik, Katarina, Ravnikar, Maja, Ješelnik, Meta, Košir, Tamara, Petkovšek, Martin, Zupanc, Mojca, Dular, Matevž, and Aguirre, Ion Gutierrez
- Published
- 2022
- Full Text
- View/download PDF
4. Hydrodynamic cavitation efficiently inactivates potato virus Y in water
- Author
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Arijana Filipić, Tadeja Lukežič, Katarina Bačnik, Maja Ravnikar, Meta Ješelnik, Tamara Košir, Martin Petkovšek, Mojca Zupanc, Matevž Dular, and Ion Gutierrez Aguirre
- Subjects
Water decontamination ,Virus inactivation ,Potato virus Y ,Hydrodynamic cavitation ,Chemistry ,QD1-999 ,Acoustics. Sound ,QC221-246 - Abstract
Waterborne plant viruses can destroy entire crops, leading not only to high financial losses but also to food shortages. Potato virus Y (PVY) is the most important potato viral pathogen that can also affect other valuable crops. Recently, it has been confirmed that this virus is capable of infecting host plants via water, emphasizing the relevance of using proper strategies to treat recycled water in order to prevent the spread of the infectious agents. Emerging environmentally friendly methods such as hydrodynamic cavitation (HC) provide a great alternative for treating recycled water used for irrigation. In the experiments conducted in this study, laboratory HC based on Venturi constriction with a sample volume of 1 L was used to treat water samples spiked with purified PVY virions. The ability of the virus to infect plants was abolished after 500 HC passes, corresponding to 50 min of treatment under pressure difference of 7 bar. In some cases, shorter treatments of 125 or 250 passes were also sufficient for virus inactivation. The HC treatment disrupted the integrity of viral particles, which also led to a minor damage of viral RNA. Reactive species, including singlet oxygen, hydroxyl radicals, and hydrogen peroxide, were not primarily responsible for PVY inactivation during HC treatment, suggesting that mechanical effects are likely the driving force of virus inactivation. This pioneering study, the first to investigate eukaryotic virus inactivation by HC, will inspire additional research in this field enabling further improvement of HC as a water decontamination technology.
- Published
- 2022
- Full Text
- View/download PDF
5. Hydrodynamic cavitation efficiently inactivates potato virus Y in water
- Author
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Katarina Bačnik, Tamara Košir, Arijana Filipić, Martin Petkovšek, Matevž Dular, Tadeja Lukežič, Maja Ravnikar, Mojca Zupanc, Meta Ješelnik, and Ion Gutierrez Aguirre
- Subjects
History ,Polymers and Plastics ,Acoustics and Ultrasonics ,Potyvirus ,RT-qPCR, Reverse transcription real-time polymerase chain reaction ,Industrial and Manufacturing Engineering ,FFA, Furfuryl alcohol ,Virus inactivation ,Np, Hydrodynamic cavitation passes ,Water decontamination ,Chemical Engineering (miscellaneous) ,UV, Ultraviolet ,biology ,Chemistry ,food and beverages ,Plants ,HC, Hydrodynamic cavitation ,Environmentally friendly ,Potato virus Y ,Wastewater ,Irrigation ,Short Communication ,QC221-246 ,Virus ,Water scarcity ,Inorganic Chemistry ,COX, Cytochrome c oxidase ,Plant virus ,Environmental Chemistry ,Radiology, Nuclear Medicine and imaging ,Business and International Management ,QD1-999 ,ComputingMethodologies_COMPUTERGRAPHICS ,Solanum tuberosum ,Hydrodynamic cavitation ,TEM, Transmission electron microscopy ,business.industry ,fungi ,Organic Chemistry ,Acoustics. Sound ,Water ,RT-PCR, Reverse transcription polymerase chain reaction ,biology.organism_classification ,PVY, Potato virus Y ,Biotechnology ,MeOH, Methanol ,Hydrodynamics ,business ,Water use ,ROS, Reactive oxygen species - Abstract
Graphical abstract, Highlights • Hydrodynamic cavitation inactivates PVY in water samples after 500 passes or less. • Hydrodynamic cavitation disrupts the viral capsid. • Hydrodynamic cavitation induces minor damage in the viral genome. • Mechanical effects of cavitation likely play the main role in the PVY inactivation. • Hydrodynamic cavitation can be used for inactivation of waterborne viruses., Waterborne plant viruses can destroy entire crops, leading not only to high financial losses but also to food shortages. Potato virus Y (PVY) is the most important potato viral pathogen that can also affect other valuable crops. Recently, it has been confirmed that this virus is capable of infecting host plants via water, emphasizing the relevance of using proper strategies to treat recycled water in order to prevent the spread of the infectious agents. Emerging environmentally friendly methods such as hydrodynamic cavitation (HC) provide a great alternative for treating recycled water used for irrigation. In the experiments conducted in this study, laboratory HC based on Venturi constriction with a sample volume of 1 L was used to treat water samples spiked with purified PVY virions. The ability of the virus to infect plants was abolished after 500 HC passes, corresponding to 50 min of treatment under pressure difference of 7 bar. In some cases, shorter treatments of 125 or 250 passes were also sufficient for virus inactivation. The HC treatment disrupted the integrity of viral particles, which also led to a minor damage of viral RNA. Reactive species, including singlet oxygen, hydroxyl radicals, and hydrogen peroxide, were not primarily responsible for PVY inactivation during HC treatment, suggesting that mechanical effects are likely the driving force of virus inactivation. This pioneering study, the first to investigate eukaryotic virus inactivation by HC, will inspire additional research in this field enabling further improvement of HC as a water decontamination technology.
- Published
- 2022
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