Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"virus inactivation"”.
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A global sensitivity analysis of solar virus inactivation modeling
… threat to human health. Sunlight-mediated inactivation of waterborne pathogens has been widely studied in natural surface waters, and it has been leveraged as a low-cost approach to disinfection for drinking water and wastewater treatment. Solar-driven disinfection systems can inactivate …
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Photo(electro)catalytic Processes for Producing Value-added Chemicals and Virus Inactivation
… the production of value-added chemicals and inactivation of viruses. The understanding of such photo(electro)catalytic processes holds the key towards a circular economy (sustainable and ecofriendly processes). I have reported four specific studies focusing on addressing the above-mentioned …
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The development of a pseudo-mechanistic model of solar irradiation-induced inactivation of viruses in wastewater and natural waters
… to solar irradiation which can enable the inactivation of viruses that are hazardous to human health. However, this sunlight disinfection is an unintentional byproduct of traditional WSP design, and consequently virus concentrations are not always reduced to sufficient levels. With the aim …
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A comparison study of efficacy of food sanitizers with fresh leafy vegetables with different surface properties and analysis of the rotavirus replication cycle after inactivation by food sanitizers
… of food borne illness pathogens including viruses. To prevent causes of foodborne illness, the use of sanitizers is essential for fresh produce. However, it is considered that the current sanitizers used in food industry may not be effective on virus inactivation on fresh produce, and …
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Roles of singlet oxygen and triplet excited state of dissolved organic matter formed by different organic matters in bacteriophage MS2 inactivation
Inactivation of bacteriophage MS2 by reactive oxygen species (ROS) produced by irradiation with simulated sunlight, containing visible light and ultraviolet light with wavelengths greater than 320 nm, was investigated. The results from experiments with synthetic sensitizers Rose Bengal, …
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Disinfection of fresh produce contaminated by enteric viruses and their inactivation mechanisms
… foodborne viral illnesses in the United States. Viruses from contaminated irrigation water could be carried to crops, resulting in foodborne infection risks, especially for fresh produce eaten raw. Upon harvest, vegetables are commonly washed by a sanitizer to inactivate viruses that may cause …
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Applications for nanomaterials in critical technologies
… dramatically enhanced efficiency and capacity of virus inactivation, which cannot be achieved by their bulk counterparts. A series of metal oxide nanoparticles, such as iron oxide nanoparticles, zinc oxide nanoparticles and iron oxide-silver nanoparticles, coated on fiber substrates was developed …
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Validating Pathogen Reduction in Ozone-Biofiltration Water Reuse Applications
… reduction of Cryptosporidum, Giardia, enteric viruses, pathogenic bacteria and their corresponding surrogate microorganisms (e.g. spore forming bacteria, coliphage) was quantified across the upstream wastewater treatment process and the AWT. In general, the removal of surrogate microorganisms …
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Inducible Epithelial Resistance Against Acute Viral Pneumonia and Chronic Asthma
… addition to causing acute disease, respiratory virus infections are often complicated by chronic lung pathologies, such as asthma induction, progression, and exacerbation. We have reported that mice treated with a combination of inhaled Toll-like receptor (TLR) 2/6 and TLR 9 agonists (Pam2-ODN) …
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Inducible Epithelial Resistance Against Acute Viral Pneumonia and Chronic Asthma
… addition to causing acute disease, respiratory virus infections are often complicated by chronic lung pathologies, such as asthma induction, progression, and exacerbation. We have reported that mice treated with a combination of inhaled Toll-like receptor (TLR) 2/6 and TLR 9 agonists (Pam2-ODN) …
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Kinetics and Mechanisms of Human Adenovirus 2 Inactivation With UV and Chlorine
… potable water. Of particular interest are adenoviruses, which are on the CCL2 issued by the EPA. Unfortunately, the recently-adopted method of irradiation by ultraviolet (UV) light is largely ineffective against adenoviruses. Research is therefore required to find whether any of the other …
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Toward a Mechanistic Understanding of Inactivation of Respiratory Viruses in the Environment
Airborne transmission of most respiratory viruses was not widely acknowledged until the COVID-19 pandemic. For viruses to transmit between infected and healthy individuals, they must remain stable (i.e., "survive") in aerosols and droplets. Their stability is influenced by many factors including …
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Airborne Transmission of Influenza a Virus in Indoor Environments
… little about the dynamics of the influenza virus in the environment during transmission between hosts. There is still controversy over the relative importance of various transmission routes, and the seasonality of influenza remains unexplained. This work focuses on developing new knowledge …
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A study of the kinetics and mechanism of inactivation of a DNA- containing enteric virus by chlorine
A newly discovered enteric virus has recently been associated with large outbreaks of waterborne gastroenteritis. Most commonly referred to as the Norwalk agent, this virus appears to be morphologically and biophysically similar ·to the parvoviruses. Presently there is very little known about the …
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Decontamination of food and food-processing surfaces from norovirus by cold atmospheric-pressure gaseous plasma
Human Norovirus (HuNoV) is a leading cause of acute foodborne gastroenteritis outbreaks and sporadic cases. The estimated burden of HuNoV on public health is 685 million and 20 million illnesses each year in the world and the US, respectively. This results in approximately $4.3 billion and $60.3 …
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Treating filtered final effluent from the Cape Flats Wastewater treatment plant with ozone and biologically activated carbon filtration to remove pathogens and organic micropollutants
… contact time, in terms of cost for 2–4 Log virus inactivation by ozone and 1–3 Log giardia inactivation by ozone, is between 5–7 minutes as determined by the CSTR method, and it is 5 minutes as determined by the T10 method. The optimum contact time, in terms of cost for 1–3 log inactivation …
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Antigenic profiling of the porcine reproductive and respiratory syndrome virus
Porcine reproductive and respiratory syndrome virus (PRRSV) causes reproductive failure in sows and boars, and is involved in the porcine respiratory disease complex, causing huge economical losses to the swine industry. Despite the development and broad implementation of vaccines, the virus could …