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Lu H, Ni SQ. Review on sterilization techniques, and the application potential of phage lyase and lyase immobilization in fighting drug-resistant bacteria. J Mater Chem B 2024; 12:3317-3335. [PMID: 38380677 DOI: 10.1039/d3tb02366d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Many human health problems and property losses caused by pathogenic contamination cannot be underestimated. Bactericidal techniques have been extensively studied to address this issue of public health and economy. Bacterial resistance develops as a result of the extensive use of single or multiple but persistent usage of sterilizing drugs, and the emergence of super-resistant bacteria brings new challenges. Therefore, it is crucial to control pathogen contamination by applying innovative and effective sterilization techniques. As organisms that exist in nature and can specifically kill bacteria, phages have become the focus as an alternative to antibacterial agents. Furthermore, phage-encoded lyases are proteins that play important roles in phage sterilization. The in vitro sterilization of phage lyase has been developed as a novel biosterilization technique to reduce bacterial resistance and is more environmentally friendly than conventional sterilization treatments. For the shortcomings of enzyme applications, this review discusses the enzyme immobilization methods and the application potential of immobilized lyases for sterilization. Although some techniques provide effective solutions, immobilized lyase sterilization technology has been proven to be a more effective innovation for efficient pathogen killing and reducing bacterial resistance. We hope that this review can provide new insights for the development of sterilization techniques.
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Affiliation(s)
- Han Lu
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266237, China.
| | - Shou-Qing Ni
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266237, China.
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2
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Hilton J, Nanao Y, Flokstra M, Askari M, Smith TK, Di Falco A, King PDC, Wahl P, Adamson CS. The role of ion dissolution in metal and metal oxide surface inactivation of SARS-CoV-2. Appl Environ Microbiol 2024; 90:e0155323. [PMID: 38259079 PMCID: PMC10880620 DOI: 10.1128/aem.01553-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/28/2023] [Indexed: 01/24/2024] Open
Abstract
Anti-viral surface coatings are under development to prevent viral fomite transmission from high-traffic touch surfaces in public spaces. Copper's anti-viral properties have been widely documented, but the anti-viral mechanism of copper surfaces is not fully understood. We screened a series of metal and metal oxide surfaces for anti-viral activity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease (COVID-19). Copper and copper oxide surfaces exhibited superior anti-SARS-CoV-2 activity; however, the level of anti-viral activity was dependent on the composition of the carrier solution used to deliver virus inoculum. We demonstrate that copper ions released into solution from test surfaces can mediate virus inactivation, indicating a copper ion dissolution-dependent anti-viral mechanism. The level of anti-viral activity is, however, not dependent on the amount of copper ions released into solution per se. Instead, our findings suggest that degree of virus inactivation is dependent on copper ion complexation with other biomolecules (e.g., proteins/metabolites) in the virus carrier solution that compete with viral components. Although using tissue culture-derived virus inoculum is experimentally convenient to evaluate the anti-viral activity of copper-derived test surfaces, we propose that the high organic content of tissue culture medium reduces the availability of "uncomplexed" copper ions to interact with the virus, negatively affecting virus inactivation and hence surface anti-viral performance. We propose that laboratory anti-viral surface testing should include virus delivered in a physiologically relevant carrier solution (saliva or nasal secretions when testing respiratory viruses) to accurately predict real-life surface anti-viral performance when deployed in public spaces.IMPORTANCEThe purpose of evaluating the anti-viral activity of test surfaces in the laboratory is to identify surfaces that will perform efficiently in preventing fomite transmission when deployed on high-traffic touch surfaces in public spaces. The conventional method in laboratory testing is to use tissue culture-derived virus inoculum; however, this study demonstrates that anti-viral performance of test copper-containing surfaces is dependent on the composition of the carrier solution in which the virus inoculum is delivered to test surfaces. Therefore, we recommend that laboratory surface testing should include virus delivered in a physiologically relevant carrier solution to accurately predict real-life test surface performance in public spaces. Understanding the mechanism of virus inactivation is key to future rational design of improved anti-viral surfaces. Here, we demonstrate that release of copper ions from copper surfaces into small liquid droplets containing SARS-CoV-2 is a mechanism by which the virus that causes COVID-19 can be inactivated.
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Affiliation(s)
- Jane Hilton
- Biomedical Sciences Research Complex, School of Biology, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Yoshiko Nanao
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Machiel Flokstra
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Meisam Askari
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Terry K. Smith
- Biomedical Sciences Research Complex, School of Biology, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Andrea Di Falco
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Phil D. C. King
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Peter Wahl
- SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, Fife, United Kingdom
| | - Catherine S. Adamson
- Biomedical Sciences Research Complex, School of Biology, University of St Andrews, St Andrews, Fife, United Kingdom
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3
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Fu H, Yaniv V, Betzalel Y, Mamane H, Gray KA. Creating anti-viral high-touch surfaces using photocatalytic transparent films. CHEMOSPHERE 2023; 323:138280. [PMID: 36868422 DOI: 10.1016/j.chemosphere.2023.138280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Antimicrobial and self-cleaning surface coatings are promising tools to combat the growing global threat of infectious diseases and related healthcare-associated infections (HAIs). Although many engineered TiO2-based coating technologies are reporting antibacterial performance, the antiviral performance of these coatings has not been explored. Furthermore, previous studies have underscored the importance of the "transparency" of the coating for surfaces such as the touch screens of medical devices. Hence, in this study, we fabricated a variety of nanoscale TiO2-based transparent thin films (anatase TiO2, anatase/rutile mixed phase TiO2, silver-anatase TiO2 composite, and carbon nanotube-anatase TiO2 composite) via dipping and airbrush spray coating technologies and evaluated their antiviral performance (Bacteriophage MS2 as the model) under dark and illuminated conditions. The thin films showed high surface coverage (ranging from 40 to 85%), low surface roughness (maximum average roughness 70 nm), super-hydrophilicity (water contact angle 6-38.4°), and high transparency (70-80% transmittance under visible light). Antiviral performance of the coatings revealed that silver-anatase TiO2 composite (nAg/nTiO2) coated samples achieved the highest antiviral efficacy (5-6 log reduction) while the other TiO2 coated samples showed fair antiviral results (1.5-3.5 log reduction) after 90 min LED irradiation at 365 nm. Those findings indicate that TiO2-based composite coatings are effective in creating antiviral high-touch surfaces with the potential to control infectious diseases and HAIs.
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Affiliation(s)
- Han Fu
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Vered Yaniv
- Water Technologies Laboratory, Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Yifaat Betzalel
- Water Technologies Laboratory, Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Hadas Mamane
- School of Mechanical Engineering, Faculty of Engineering, Tel-Aviv University, Tel Aviv, 69978, Israel.
| | - Kimberly A Gray
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, 60208, USA.
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El-Sayyad GS, Elfadil D, Gaballah MS, El-Sherif DM, Abouzid M, Nada HG, Khalil MS, Ghorab MA. Implication of nanotechnology to reduce the environmental risks of waste associated with the COVID-19 pandemic. RSC Adv 2023; 13:12438-12454. [PMID: 37091621 PMCID: PMC10117286 DOI: 10.1039/d3ra01052j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/14/2023] [Indexed: 04/25/2023] Open
Abstract
The COVID-19 pandemic is the largest global public health outbreak in the 21st century so far. It has contributed to a significant increase in the generation of waste, particularly personal protective equipment and hazardous medical, as it can contribute to environmental pollution and expose individuals to various hazards. To minimize the risk of infection, the entire surrounding environment should be disinfected or neutralized regularly. Effective medical waste management can add value by reducing the spread of COVID-19 and increasing the recyclability of materials instead of sending them to landfill. Developing an antiviral coating for the surface of objects frequently used by the public could be a practical solution to prevent the spread of virus particles and the inactivation of virus transmission. Relying on an abundance of engineered materials identifiable by their useful physicochemical properties through versatile chemical functionalization, nanotechnology offers a number of approaches to address this emergency. Here, through a multidisciplinary perspective encompassing various fields such as virology, biology, medicine, engineering, chemistry, materials science, and computer science, we describe how nanotechnology-based strategies can support the fight against COVID-19 well as infectious diseases in general, including future pandemics. In this review, the design of the antiviral coating to combat the spread of COVID-19 was discussed, and technological attempts to minimize the coronavirus outbreak were highlighted.
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Affiliation(s)
- Gharieb S El-Sayyad
- Department of Microbiology and Immunology, Faculty of Pharmacy, Ahram Canadian University (ACU) Giza Egypt
- Department of Microbiology and Immunology, Faculty of Pharmacy, Galala University New Galala City Suez Egypt
- Drug Microbiology Laboratory, Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA) Cairo Egypt
| | - Dounia Elfadil
- Biology and Chemistry Department, Hassan II University of Casablanca Morocco
| | - Mohamed S Gaballah
- College of Engineering (Key Laboratory for Clean Renewable Energy Utilization Technology, Ministry of Agriculture), China Agricultural University Beijing 100083 PR China
- Department of Physical Pharmacy and Pharmacokinetics, Faculty of Pharmacy, Poznan University of Medical Sciences Rokietnicka 3 St. 60-806 Poznan Poland
| | - Dina M El-Sherif
- National Institute of Oceanography and Fisheries (NIOF) Cairo Egypt
| | - Mohamed Abouzid
- Department of Physical Pharmacy and Pharmacokinetics, Faculty of Pharmacy, Poznan University of Medical Sciences Rokietnicka 3 St. 60-806 Poznan Poland
- Doctoral School, Poznan University of Medical Sciences 60-812 Poznan Poland
| | - Hanady G Nada
- Drug Microbiology Laboratory, Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA) Cairo Egypt
- Department of Microbiology, Faculty of Science, Ain Shams University Cairo Egypt
| | - Mohamed S Khalil
- Agricultural Research Center, Central Agricultural Pesticides Laboratory Alexandria Egypt
| | - Mohamed A Ghorab
- Wildlife Toxicology Laboratory, Department of Animal Science, Institute for Integrative Toxicology (IIT), Michigan State University East Lansing MI 48824 USA
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Ghosal K. Tackling COVID-19 Using Antiviral Nanocoating's-Recent Progress and Future Challenges. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION : MEASUREMENT AND DESCRIPTION OF PARTICLE PROPERTIES AND BEHAVIOR IN POWDERS AND OTHER DISPERSE SYSTEMS 2023; 40:2200154. [PMID: 36711425 PMCID: PMC9874835 DOI: 10.1002/ppsc.202200154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/24/2022] [Indexed: 05/05/2023]
Abstract
In the current situation of the global coronavirus disease 2019 (COVID-19) pandemic, there is a worldwide demand for the protection of regular handling surfaces from viral transmission to restrict the spread of COVID-19 infection. To tackle this challenge, researchers and scientists are continuously working on novel antiviral nanocoatings to make various substrates capable of arresting the spread of such pathogens. These nanocoatings systems include metal/metal oxide nanoparticles, electrospun antiviral polymer nanofibers, antiviral polymer nanoparticles, graphene family nanomaterials, and etched nanostructures. The antiviral mechanism of these systems involves depletion of the spike glycoprotein that anchors to surfaces by the nanocoating and makes the spike glycoprotein and viral nucleotides inactive; however, the nature of the interaction between the spike proteins and virus depends on the type of nanostructure and a surface charge over the coating surface. In this article, the current scenario of COVID-19 and how it can be tackled using antiviral nanocoatings from the further transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), along with their different mode of action, are discussed. Additionally, it is also highlighted different types of nanocoatings developed for various substrates to encounter transmission of SARS-CoV-2, future research areas along with the current challenges related to it, and how these challenges can be resolved.
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Affiliation(s)
- Krishanu Ghosal
- Research & Development LaboratoryShalimar Paints LimitedNashikMaharashtra422403India
- The Wolfson Faculty of Chemical EngineeringTechnion‐Israel Institute of TechnologyHaifa3200003Israel
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Arun J, Nachiappan S, Rangarajan G, Alagappan RP, Gopinath KP, Lichtfouse E. Synthesis and application of titanium dioxide photocatalysis for energy, decontamination and viral disinfection: a review. ENVIRONMENTAL CHEMISTRY LETTERS 2023; 21:339-362. [PMID: 36060494 PMCID: PMC9419126 DOI: 10.1007/s10311-022-01503-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 08/05/2022] [Indexed: 05/04/2023]
Abstract
Global pollution is calling for advanced methods to remove contaminants from water and wastewater, such as TiO2-assisted photocatalysis. The environmental applications of titanium dioxide have started after the initial TiO2 application for water splitting by Fujishima and Honda in 1972. TiO2 is now used for self-cleaning surfaces, air and water purification systems, microbial inactivation and selective organic conversion. The synthesis of titanium dioxide nanomaterials with high photocatalytic activity is actually a major challenge. Here we review titanium dioxide photocatalysis with focus on mechanims, synthesis, and applications. Synthetic methods include sol-gel, sonochemical, microwave, oxidation, deposition, hydro/solvothermal, and biological techniques. Applications comprise the production of energy, petroleum recovery, and the removal of microplastics, pharmaceuticals, metals, dyes, pesticides, and of viruses such as the severe acute respiratory syndrome coronavirus 2.
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Affiliation(s)
- Jayaseelan Arun
- Centre for Waste Management-International Research Centre, Sathyabama Institute of Science and Technology, Jeppiaar Nagar (OMR), Tamil Nadu, Chennai, 6030119 India
| | - S. Nachiappan
- Department of Chemical Engineering, University of Technology and Applied Sciences, Salalah, Sultanate of Oman
| | - Goutham Rangarajan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Ontario, M5S3E5 Canada
| | - Ram Prasath Alagappan
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2601 DA Delft, The Netherlands
| | - K. P. Gopinath
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam (OMR), Tamil Nadu, Chennai, 603110 India
| | - Eric Lichtfouse
- European Centre for Research and Education in Geosciences (CEREGE), Aix Marseille University, 13007 Marseille, France
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7
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Hussain FS, Abro NQ, Ahmed N, Memon SQ, Memon N. Nano-antivirals: A comprehensive review. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2022.1064615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Nanoparticles can be used as inhibitory agents against various microorganisms, including bacteria, algae, archaea, fungi, and a huge class of viruses. The mechanism of action includes inhibiting the function of the cell membrane/stopping the synthesis of the cell membrane, disturbing the transduction of energy, producing toxic reactive oxygen species (ROS), and inhibiting or reducing RNA and DNA production. Various nanomaterials, including different metallic, silicon, and carbon-based nanomaterials and nanoarchitectures, have been successfully used against different viruses. Recent research strongly agrees that these nanoarchitecture-based virucidal materials (nano-antivirals) have shown activity in the solid state. Therefore, they are very useful in the development of several products, such as fabric and high-touch surfaces. This review thoroughly and critically identifies recently developed nano-antivirals and their products, nano-antiviral deposition methods on various substrates, and possible mechanisms of action. By considering the commercial viability of nano-antivirals, recommendations are made to develop scalable and sustainable nano-antiviral products with contact-killing properties.
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Lishchynskyi O, Shymborska Y, Stetsyshyn Y, Raczkowska J, Skirtach AG, Peretiatko T, Budkowski A. Passive antifouling and active self-disinfecting antiviral surfaces. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2022; 446:137048. [PMID: 35601363 PMCID: PMC9113772 DOI: 10.1016/j.cej.2022.137048] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/01/2022] [Accepted: 05/15/2022] [Indexed: 05/15/2023]
Abstract
Viruses pose a serious threat to human health and society in general, as virus infections are one of the main causes of morbidity and mortality. Till May 2022, over 513 million people around the world have been confirmed to be infected and more than 6.2 million have died due to SARS-CoV-2. Although the COVID-19 pandemic will be defeated in the near future, we are likely to face new viral threats in the coming years. One of the important instruments to protect from viruses are antiviral surfaces, which are essentially capable of limiting their spread. The formulation of the concept of antiviral surfaces is relatively new. In general, five types of mechanism directed against virus spread can be proposed for antiviral surfaces; involving: direct and indirect actions, receptor inactivation, photothermal effect, and antifouling behavior. All antiviral surfaces can be classified into two main types - passive and active. Passive antiviral surfaces are based on superhydrophobic coatings that are able to repel virus contaminated droplets. In turn, viruses can become biologically inert (e.g., blocked or destroyed) upon contact with active antiviral surfaces, as they contain antiviral agents: metal atoms, synthetic or natural polymers, and small molecules. The functionality of antiviral surfaces can be significantly improved with additional properties, such as temperature- or pH-responsivity, multifunctionality, non-specific action on different virus types, long-term application, high antiviral efficiency and self-cleaning.
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Affiliation(s)
- Ostap Lishchynskyi
- Lviv Polytechnic National University, St. George's Square 2, 79013 Lviv, Ukraine
- Department of Biotechnology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Yana Shymborska
- Lviv Polytechnic National University, St. George's Square 2, 79013 Lviv, Ukraine
- Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Yurij Stetsyshyn
- Lviv Polytechnic National University, St. George's Square 2, 79013 Lviv, Ukraine
- Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Joanna Raczkowska
- Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Andre G Skirtach
- Department of Biotechnology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Taras Peretiatko
- Ivan Franko National University of Lviv, Universytetska 1, 79000 Lviv, Ukraine
| | - Andrzej Budkowski
- Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
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9
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Cimolai N. Disinfection and decontamination in the context of SARS-CoV-2-specific data. J Med Virol 2022; 94:4654-4668. [PMID: 35758523 PMCID: PMC9350315 DOI: 10.1002/jmv.27959] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 06/13/2022] [Accepted: 06/24/2022] [Indexed: 11/08/2022]
Abstract
Given the high transmissibility of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as witnessed early in the coronavirus disease 2019 (COVID-19) pandemic, concerns arose with the existing methods for virus disinfection and decontamination. The need for SARS-CoV-2-specific data stimulated considerable research in this regard. Overall, SARS-CoV-2 is practically and equally susceptible to approaches for disinfection and decontamination that have been previously found for other human or animal coronaviruses. The latter have included techniques utilizing temperature modulation, pH extremes, irradiation, and chemical treatments. These physicochemical methods are a necessary adjunct to other prevention strategies, given the environmental and patient surface ubiquity of the virus. Classic studies of disinfection have also allowed for extrapolation to the eradication of the virus on human mucosal surfaces by some chemical means. Despite considerable laboratory study, practical field assessments are generally lacking and need to be encouraged to confirm the correlation of interventions with viral eradication and infection prevention. Transparency in the constitution and use of any method or chemical is also essential to furthering practical applications.
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Affiliation(s)
- Nevio Cimolai
- Department of Pathology and Laboratory Medicine, Faculty of MedicineThe University of British ColumbiaVancouverBritish ColumbiaCanada
- Department of Pathology and Laboratory MedicineChildren's and Women's Health Centre of British ColumbiaVancouverBritish ColumbiaCanada
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Mousazadeh M, Kabdaşlı I, Khademi S, Sandoval MA, Moussavi SP, Malekdar F, Gilhotra V, Hashemi M, Dehghani MH. A critical review on the existing wastewater treatment methods in the COVID-19 era: What is the potential of advanced oxidation processes in combatting viral especially SARS-CoV-2? JOURNAL OF WATER PROCESS ENGINEERING 2022; 49:103077. [PMID: 35990175 PMCID: PMC9381433 DOI: 10.1016/j.jwpe.2022.103077] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/19/2022] [Accepted: 08/15/2022] [Indexed: 06/01/2023]
Abstract
The COVID-19 epidemic has put the risk of virus contamination in water bodies on the horizon of health authorities. Hence, finding effective ways to remove the virus, especially SARS-CoV-2, from wastewater treatment plants (WWTPs) has emerged as a hot issue in the last few years. Herein, this study first deals with the fate of SARS-CoV-2 genetic material in WWTPs, then critically reviews and compares different wastewater treatment methods for combatting COVID-19 as well as to increase the water quality. This critical review sheds light the efficiency of advanced oxidation processes (AOPs) to inactivate virus, specially SARS-CoV-2 RNA. Although several physicochemical treatment processes (e.g. activated sludge) are commonly used to eliminate pathogens, AOPs are the most versatile and effective virus inactivation methods. For instance, TiO2 is the most known and widely studied photo-catalyst innocuously utilized to degrade pollutants as well as to photo-induce bacterial and virus disinfection due to its high chemical resistance and efficient photo-activity. When ozone is dissolved in water and wastewater, it generates a wide spectrum of the reactive oxygen species (ROS), which are responsible to degrade materials in virus membranes resulting in destroying the cell wall. Furthermore, electrochemical advanced oxidation processes act through direct oxidation when pathogens react at the anode surface or by indirect oxidation through oxidizing species produced in the bulk solution. Consequently, they represent a feasible choice for the inactivation of a wide range of pathogens. Nonetheless, there are some challenges with AOPs which should be addressed for application at industrial-scale.
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Affiliation(s)
- Milad Mousazadeh
- Social Determinants of Health Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran
- Department of Environmental Health Engineering, School of Health, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Işık Kabdaşlı
- İstanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Ayazağa Campus, 34469 Maslak, İstanbul, Turkey
| | - Sara Khademi
- Health, Safety, and Environment Specialist, North Drilling Company, Ahvaz, Iran
| | - Miguel Angel Sandoval
- Universidad de Santiago de Chile USACH, Facultad de Química y Biología, Departamento de Química de los Materiales, Laboratorio de Electroquímica Medio Ambiental, LEQMA, Casilla 40, Correo 33, Santiago, Chile
- Universidad de Guanajuato, División de Ciencias Naturales y Exactas, Departamento de Ingeniería Química, Noria Alta S/N, 36050, Guanajuato, Guanajuato, Mexico
| | | | - Fatemeh Malekdar
- Department of Foot and Mouth Disease Vaccine Production, Razi Vaccine and Serum Research Institute, Karaj, Iran
| | - Vishakha Gilhotra
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Marjan Hashemi
- Environmental and Occupational Hazards Control Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hadi Dehghani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Institute for Environmental Research, Center for Solid Waste Research, Tehran University of Medical Sciences, Tehran, Iran
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11
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Han R, Coey JD, O'Rourke C, Bamford CGG, Mills A. Flexible, disposable photocatalytic plastic films for the destruction of viruses. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B: BIOLOGY 2022; 235:112551. [PMID: 36063568 PMCID: PMC9404456 DOI: 10.1016/j.jphotobiol.2022.112551] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 07/26/2022] [Accepted: 08/21/2022] [Indexed: 01/31/2023]
Abstract
A thin, 30 μm, flexible, robust low-density polyethylene, LDPE, film, loaded with 30 wt% P25 TiO2, is extruded and subsequently rendered highly active photocatalytically by exposing it to UVA (352 nm, 1.5 mW cm−2) for 144 h. The film was tested for anti-viral activity using four different viruses, namely, two strains of Influenza A Virus (IAV), WSN, and a recombinant PR8, encephalomyocarditis virus (EMCV), and SARS-CoV-2 (SARS2). The film was irradiated with either UVA radiation (352 nm, 1.5 mW cm−2; although only 0.25 mW cm−2 for SARS2) or with light from a cool white fluorescent lamp (UVA irradiance: 365 nm, 0.047 mW cm−2). In all cases the films exhibited an average virus inactivation rate of >1.5log/h. In the case of SARS2, the rates were > 2log/h, with the rate determined using a dedicated, low intensity UVA source (0.25 mW cm−2) only 1.3 x's faster than that for a cool white lamp (UVA irradiance = 0.047 mW cm−2), which suggests that SARS2 is particularly prone to photocatalytic inactivation even under low UV irradiation conditions, such as found in a room lit with just white fluorescent tubes. This is the first example of a flexible, very thin, photocatalytic plastic film, produced by a scalable process (extrusion), for virus inactivation. The potential of such a film for use as a disposable, self-sterilising thin plastic material alternative to the common, non-photocatalytic, inert equivalent used currently for curtains, aprons and table coverings in healthcare is discussed briefly.
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Affiliation(s)
- Ri Han
- School of Chemistry and Chemical Engineering, Queens University Belfast, Stranmillis Road, Belfast BT9 5AG, UK
| | - Jonathon D Coey
- Wellcome-Wolfson Institute for Experimental Medicine (WWIEM), Queens University Belfast, School of Medicine, Dentistry and Biomedical Sciences, 96 Lisburn Road, Belfast BT9 7BL, UK
| | - Christopher O'Rourke
- School of Chemistry and Chemical Engineering, Queens University Belfast, Stranmillis Road, Belfast BT9 5AG, UK
| | - Connor G G Bamford
- Wellcome-Wolfson Institute for Experimental Medicine (WWIEM), Queens University Belfast, School of Medicine, Dentistry and Biomedical Sciences, 96 Lisburn Road, Belfast BT9 7BL, UK
| | - Andrew Mills
- School of Chemistry and Chemical Engineering, Queens University Belfast, Stranmillis Road, Belfast BT9 5AG, UK.
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Prakash J, Krishna SBN, Kumar P, Kumar V, Ghosh KS, Swart HC, Bellucci S, Cho J. Recent Advances on Metal Oxide Based Nano-Photocatalysts as Potential Antibacterial and Antiviral Agents. Catalysts 2022; 12:1047. [DOI: 10.3390/catal12091047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023] Open
Abstract
Photocatalysis, a unique process that occurs in the presence of light radiation, can potentially be utilized to control environmental pollution, and improve the health of society. Photocatalytic removal, or disinfection, of chemical and biological species has been known for decades; however, its extension to indoor environments in public places has always been challenging. Many efforts have been made in this direction in the last two–three years since the COVID-19 pandemic started. Furthermore, the development of efficient photocatalytic nanomaterials through modifications to improve their photoactivity under ambient conditions for fighting with such a pandemic situation is a high research priority. In recent years, several metal oxides-based nano-photocatalysts have been designed to work efficiently in outdoor and indoor environments for the photocatalytic disinfection of biological species. The present review briefly discusses the advances made in the last two to three years for photocatalytic viral and bacterial disinfections. Moreover, emphasis has been given to the tailoring of such nano-photocatalysts in disinfecting surfaces, air, and water to stop viral/bacterial infection in the indoor environment. The role of such nano-photocatalysts in the photocatalytic disinfection of COVID-19 has also been highlighted with their future applicability in controlling such pandemics.
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13
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Antimicrobial Activity of a Titanium Dioxide Additivated Thermoset. Catalysts 2022. [DOI: 10.3390/catal12080829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The transmission of pathogens via surfaces poses a major health problem, particularly in hospital environments. Antimicrobial surfaces can interrupt the path of spread, while photocatalytically active titanium dioxide (TiO2) nanoparticles have emerged as an additive for creating antimicrobial materials. Irradiation of such particles with ultraviolet (UV) light leads to the formation of reactive oxygen species that can inactivate bacteria. The aim of this research was to incorporate TiO2 nanoparticles into a cellulose-reinforced melamine-formaldehyde resin (MF) to obtain a photocatalytic antimicrobial thermoset, to be used, for example, for device enclosures or tableware. To this end, composites of MF with 5, 10, 15, and 20 wt% TiO2 were produced by ultrasonication and hot pressing. The incorporation of TiO2 resulted in a small decrease in tensile strength and little to no decrease in Shore D hardness, but a statistically significant decrease in the water contact angle. After 48 h of UV irradiation, a statistically significant decrease in tensile strength for samples with 0 and 10 wt% TiO2 was measured but with no statistically significant differences in Shore D hardness, although a statistically significant increase in surface hydrophilicity was measured. Accelerated methylene blue (MB) degradation was measured during a further 2.5 h of UV irradiation and MB concentrations of 12% or less could be achieved. Samples containing 0, 10, and 20 wt% TiO2 were investigated for long-term UV stability and antimicrobial activity. Fourier-transform infrared spectroscopy revealed no changes in the chemical structure of the polymer, due to the incorporation of TiO2, but changes were detected after 500 h of irradiation, indicating material degradation. Specimens pre-irradiated with UV for 48 h showed a total reduction in Escherichia coli when exposed to UV irradiation.
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Hosseini M, Poon LLM, Chin AWH, Ducker WA. Effect of Surface Porosity on SARS-CoV-2 Fomite Infectivity. ACS OMEGA 2022; 7:18238-18246. [PMID: 35663285 PMCID: PMC9159070 DOI: 10.1021/acsomega.1c06880] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 03/18/2022] [Indexed: 05/06/2023]
Abstract
Previous reports indicated the low stability of severe actute respiratory syndrome coronovirus 2 (SARS-CoV-2) on various porous surfaces, but the role of porosity was unclear because there was no direct comparison between porous and nonporous solids of the same chemistry. Through comparing pairs of solids with very similar chemistry, we find that porosity is important: porous glass has a much lower infectivity than nonporous glass. However, porosity is not sufficient to lower infectivity; permeability, which is the ability of a liquid to move through a material, is the important parameter. We show this by comparing a pair of porous CuO coatings where the pores are accessible in one case and inaccessible in the other case. When the pores are inaccessible, the infectivity remains similar to that for nonporous solids. Thus, for both glass and CuO, it is the access to porosity that decreases the infectivity of extracted liquid droplets. Having established the importance of permeability, there is the open question of the mechanism of changing the infectivity of SARS-CoV-2. Several hypotheses are possible, such as increasing the difficulty of extracting the virus from the solid, changing the drying time, increasing the surface area of active ingredient, etc. Reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) measurements show that less viral DNA is extracted from a permeable surface, suggesting that the virus becomes trapped in the pores. Finally, we consider the effect of drying. We show that permeability and the water contact angle on the solid have effects on the drying time of a contaminated droplet, which may in turn affect infectivity.
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Affiliation(s)
- Mohsen Hosseini
- Deptartment
of Chemical Engineering and Center for Soft Matter and Biological
Physics, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Leo L. M. Poon
- School
of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Centre
for Immunity and Infection, Hong Kong Science Park, Hong Kong, China
- HKU
Pasteur Research Pole, LKS Faculty of Medicine, The University of Hong Kong, Hong
Kong, China
| | - Alex W. H. Chin
- School
of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Centre
for Immunity and Infection, Hong Kong Science Park, Hong Kong, China
| | - William A. Ducker
- Deptartment
of Chemical Engineering and Center for Soft Matter and Biological
Physics, Virginia Tech, Blacksburg, Virginia 24061, United States
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15
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Mosselhy DA, Kareinen L, Kivistö I, Virtanen J, Loikkanen E, Ge Y, Maunula L, Sironen T. Inhibition of SARS-CoV-2 Alpha Variant and Murine Noroviruses on Copper-Silver Nanocomposite Surfaces. NANOMATERIALS 2022; 12:nano12071037. [PMID: 35407155 PMCID: PMC9000483 DOI: 10.3390/nano12071037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/17/2022] [Accepted: 03/19/2022] [Indexed: 02/05/2023]
Abstract
With the continued scenario of the COVID-19 pandemic, the world is still seeking out-of-the-box solutions to break its transmission cycle and contain the pandemic. There are different transmission routes for viruses, including indirect transmission via surfaces. To this end, we used two relevant viruses in our study. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing the pandemic and human norovirus (HuNV), both known to be transmitted via surfaces. Several nanoformulations have shown attempts to inhibit SARS-CoV-2 and other viruses. However, a rigorous, similar inactivation scheme to inactivate the cords of two tedious viruses (SARS-CoV-2 Alpha variant and HuNV) is lacking. The present study demonstrates the inactivation of the SARS-CoV-2 Alpha variant and the decrease in the murine norovirus (MNV, a surrogate to HuNV) load after only one minute of contact to surfaces including copper-silver (Cu-Ag) nanocomposites. We thoroughly examined the physicochemical characteristics of such plated surfaces using diverse microscopy tools and found that Cu was the dominanting element in the tested three different surfaces (~56, ~59, and ~48 wt%, respectively), hence likely playing the major role of Alpha and MNV inactivation followed by the Ag content (~28, ~13, and ~11 wt%, respectively). These findings suggest that the administration of such surfaces within highly congested places (e.g., schools, public transportations, public toilets, and hospital and live-stock reservoirs) could break the SARS-CoV-2 and HuNV transmission. We suggest such an administration after an in-depth examination of the in vitro (especially on skin cells) and in vivo toxicity of the nanocomposite formulations and surfaces while also standardizing the physicochemical parameters, testing protocols, and animal models.
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Affiliation(s)
- Dina A. Mosselhy
- Department of Virology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (L.K.); (I.K.); (J.V.)
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, 00014 Helsinki, Finland
- Correspondence: (D.A.M.); (T.S.)
| | - Lauri Kareinen
- Department of Virology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (L.K.); (I.K.); (J.V.)
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Ilkka Kivistö
- Department of Virology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (L.K.); (I.K.); (J.V.)
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Jenni Virtanen
- Department of Virology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (L.K.); (I.K.); (J.V.)
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Emil Loikkanen
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, 00014 Helsinki, Finland; (E.L.); (L.M.)
| | - Yanling Ge
- VTT Technical Research Center of Finland Ltd., 02044 Espoo, Finland;
| | - Leena Maunula
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, 00014 Helsinki, Finland; (E.L.); (L.M.)
| | - Tarja Sironen
- Department of Virology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (L.K.); (I.K.); (J.V.)
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, 00014 Helsinki, Finland
- Correspondence: (D.A.M.); (T.S.)
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16
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Abstract
Air filtration has seen a sizable increase in the global market this past year due to the COVID-19 pandemic. Nanofiber nonwoven mats are able to reach certain efficiencies with a low-pressure drop, have a very high surface area to volume ratio, filter out submicron particulates, and can customize the fiber material to better suit its purpose. Although electrospinning nonwoven mats have been very well studied and documented there are not many papers that combine them. This review touches on the various ways to manufacture nonwoven mats for use as an air filter, with an emphasis on electrospinning, the mechanisms by which the fibrous nonwoven air filter stops particles passing through, and ways that the nonwoven mats can be altered by morphology, structure, and material parameters. Metallic, ceramic, and organic nanoparticle coatings, as well as electrospinning solutions with these same materials and their properties and effects of air filtration, are explored.
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Birkett M, Dover L, Cherian Lukose C, Wasy Zia A, Tambuwala MM, Serrano-Aroca Á. Recent Advances in Metal-Based Antimicrobial Coatings for High-Touch Surfaces. Int J Mol Sci 2022; 23:1162. [PMID: 35163084 PMCID: PMC8835042 DOI: 10.3390/ijms23031162] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/14/2022] [Accepted: 01/19/2022] [Indexed: 02/06/2023] Open
Abstract
International interest in metal-based antimicrobial coatings to control the spread of bacteria, fungi, and viruses via high contact human touch surfaces are growing at an exponential rate. This interest recently reached an all-time high with the outbreak of the deadly COVID-19 disease, which has already claimed the lives of more than 5 million people worldwide. This global pandemic has highlighted the major role that antimicrobial coatings can play in controlling the spread of deadly viruses such as SARS-CoV-2 and scientists and engineers are now working harder than ever to develop the next generation of antimicrobial materials. This article begins with a review of three discrete microorganism-killing phenomena of contact-killing surfaces, nanoprotrusions, and superhydrophobic surfaces. The antimicrobial properties of metals such as copper (Cu), silver (Ag), and zinc (Zn) are reviewed along with the effects of combining them with titanium dioxide (TiO2) to create a binary or ternary contact-killing surface coatings. The self-cleaning and bacterial resistance of purely structural superhydrophobic surfaces and the potential of physical surface nanoprotrusions to damage microbial cells are then considered. The article then gives a detailed discussion on recent advances in attempting to combine these individual phenomena to create super-antimicrobial metal-based coatings with binary or ternary killing potential against a broad range of microorganisms, including SARS-CoV-2, for high-touch surface applications such as hand rails, door plates, and water fittings on public transport and in healthcare, care home and leisure settings as well as personal protective equipment commonly used in hospitals and in the current COVID-19 pandemic.
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Affiliation(s)
- Martin Birkett
- Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (C.C.L.); (A.W.Z.)
| | - Lynn Dover
- Department of Applied Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK;
| | - Cecil Cherian Lukose
- Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (C.C.L.); (A.W.Z.)
| | - Abdul Wasy Zia
- Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (C.C.L.); (A.W.Z.)
| | - Murtaza M. Tambuwala
- School of Pharmacy and Pharmaceutical Science, Ulster University, Coleraine BT52 1SA, UK;
| | - Ángel Serrano-Aroca
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, c/Guillem de Castro 94, 46001 Valencia, Spain;
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18
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Hosseini M, Behzadinasab S, Benmamoun Z, Ducker WA. The viability of SARS-CoV-2 on solid surfaces. Curr Opin Colloid Interface Sci 2021; 55:101481. [PMID: 34149298 PMCID: PMC8205552 DOI: 10.1016/j.cocis.2021.101481] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The COVID-19 pandemic had a major impact on life in 2020 and 2021. One method of transmission occurs when the causative virus, SARS-CoV-2, contaminates solids. Understanding and controlling the interaction with solids is thus potentially important for limiting the spread of the disease. We review work that describes the prevalence of the virus on common objects, the longevity of the virus on solids, and surface coatings that are designed to inactivate the virus. Engineered coatings have already succeeded in producing a large reduction in viral infectivity from surfaces. We also review work describing inactivation on facemasks and clothing and discuss probable mechanisms of inactivation of the virus at surfaces.
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Affiliation(s)
- Mohsen Hosseini
- Dept. of Chemical Engineering and Center for Soft Matter and Biological Physics, Virginia Tech, VA, 24061, USA
| | - Saeed Behzadinasab
- Dept. of Chemical Engineering and Center for Soft Matter and Biological Physics, Virginia Tech, VA, 24061, USA
| | - Zachary Benmamoun
- Dept. of Chemical Engineering and Center for Soft Matter and Biological Physics, Virginia Tech, VA, 24061, USA
| | - William A Ducker
- Dept. of Chemical Engineering and Center for Soft Matter and Biological Physics, Virginia Tech, VA, 24061, USA
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