Article
Biology
David W. Hawman, Kimberly Meade-White, Jacob Archer, Shanna S. Leventhal, Drew Wilson, Carl Shaia, Samantha Randall, Amit P. Khandhar, Kyle Krieger, Tien-Ying Hsiang, Michael Gale, Peter Berglund, Deborah Heydenburg Fuller, Heinz Feldmann, Jesse H. Erasmus
Summary: Despite efforts to control the SARS-CoV2 pandemic, the virus continues to spread with the emergence of new variants. Existing vaccines may have reduced effectiveness against these variants, leading to the development of second-generation vaccines. A study evaluated an RNA vaccine that can target multiple variants and showed promising results in mice and hamsters.
Article
Biochemistry & Molecular Biology
Avinash Mishra, Anurag S. Rathore
Summary: The study conducted computational analysis on the binding of Remdesivir and Galidesivir with SARS-CoV2 RdRp, revealing similar binding energies but distinct binding locations compared to natural substrate ATP. Simulation results indicated that Galidesivir binds at a non-catalytic location with weaker binding strength, while Remdesivir binds at the catalytic site showing potent inhibitory effects on RdRp function. Additionally, the study examined the binding of co-factor units nsp7 and nsp8 with RdRp complexed with Remdesivir and Galidesivir over a 100 ns simulation trajectory.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2022)
Article
Engineering, Environmental
Chedly Tizaoui, Richard Stanton, Evelina Statkute, Anzelika Rubina, Edward Lester-Card, Anthony Lewis, Peter Holliman, Dave Worsley
Summary: This study evaluated the inactivation of SARS-CoV-2 by ozone, both in liquid and on surfaces. Treatment in liquid reduced SARS-CoV-2 at a rate of 0.92 +/- 0.11 log(10)-reduction per ozone CT dose. On surface, the synergistic effect of ozone CT value and relative humidity was key to virus inactivation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Qi Shi, Zhuo Chen, Han Yan, Meiying Xu, Ke-Fan Cao, Yu Mao, Xiaowen Chen, Hong-Ying Hu
Summary: Ozone and chlorine are widely used disinfectants for water and wastewater disinfection. This study investigated the changes in bacterial community during ozone and chlorine disinfection in reclaimed water, and identified the typical disinfection residual bacteria (DRB) for each disinfectant. The findings highlight the importance of considering microbial safety after disinfection for sustainable water reclamation and reuse.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Daji Wang, Bin Zhang, Hui Ding, Dan Liu, Jianquan Xiang, Xuejiao J. Gao, Xuehui Chen, Zhongjun Li, Lei Yang, Hongxia Duan, Jiyan Zheng, Zheng Liu, Bing Jiang, Yang Liu, Ni Xie, Han Zhang, Xiyun Yan, Kelong Fan, Guohui Nie
Summary: The outbreak of SARS-coronavirus 2 has become a global health emergency, with no effective treatment available. A TiO2 supported single-atom nanozyme containing atomically dispersed Ag atoms, Ag-TiO2 SAN, has high adsorption of SARS-CoV2 pseudovirus and shows promising antiviral effects.
Article
Engineering, Environmental
Zhongqi He, Xiumin Fan, Wenbiao Jin, Shuhong Gao, Bowen Yan, Chuan Chen, Wanqing Ding, Shiyu Yin, Xu Zhou, Huan Liu, Xuan Li, Qilin Wang
Summary: With the growth of cities and population, the demand for drinking water is increasing. Chlorine is commonly used for disinfection in drinking water plants, but some bacteria can still survive even in high chlorine concentration, posing a significant risk to water safety. This review investigates the origin and species of chlorine-resistant bacteria in drinking water networks, as well as identification methods and current inactivation techniques. The research on ozone-based and other methods for inactivation of chlorine-resistant bacteria is highlighted.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Materials Science, Textiles
Fazlihan Yilmaz, M. Ibrahim Bahtiyari
Summary: The study investigated the disinfection processes of textile products and found that necessary and sufficient disinfection effect was obtained on cotton fabric in very short application time, especially using ozone gas.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Environmental Sciences
He Liu, Chunnan Fei, Yinglei Chen, Shengmao Luo, Tao Yang, Lei Yang, Jun Liu, Xueyue Ji, Weishen Wu, Jia Song
Summary: This study found that SARS-CoV-2 RNA can be detected in room-temperature environments at least 57 days after exposure, much longer than previously reported. Additionally, infectious SARS-CoV-2 could exist for at least 60 days on the surface of cold-chain food packages. Doorknobs and toilets were identified as important areas in COVID-19 control. High-risk populations involved in cold-chain logistics operations, such as porters, require strict prevention measures and high-level personal protection.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Chemical
Emmanuel I. Epelle, Amy Emmerson, Marija Nekrasova, Andrew Macfarlane, Michael Cusack, Anthony Burns, William Mackay, Mohammed Yaseen
Summary: This study evaluates the antimicrobial efficacy of ozone in air and water and finds that ozone is more effective in air than in water against various microorganisms. The findings have important implications for selecting optimal treatment conditions for ozonation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Natalia Mazur-Panasiuk, Pawel Botwina, Adrian Kutaj, Damian Woszczyna, Krzysztof Pyrc
Summary: The outbreak of COVID-19 highlighted the importance of preventive measures in infectious disease control. Gaseous ozone and hydrogen peroxide are commonly used disinfection tools, with hydrogen peroxide showing better virucidal performance in sanitizing coronavirus-contaminated surfaces.
Article
Engineering, Environmental
Ran Duan, Shuanglong Ma, Shengjun Xu, Beibei Wang, Mengfei He, Guangxin Li, Haichao Fu, Peng Zhao
Summary: Tetracycline has been detected in various environments, leading to the development of resistance in bacterial populations. This study fabricated soybean straw biochars (SSBs) at different pyrolysis temperatures and used them as activators for the degradation of tetracycline and disinfection of tetracycline-resistant Escherichia coli. The results showed that the purification effect of SSBs depended on the pyrolysis temperature, with SSB1000/PS system exhibiting superior degradation and disinfection capabilities. The purification mechanisms of tetracycline and Escherichia coli were found to be different, with tetracycline degradation mainly relying on surface-bound radicals and bactericidal activity attributed to free SO4 center dot- in bulk solutions. The catalytic performance of SSB1000 was attributed to its unique characteristics, such as large mesopore volumes, high C=O content, low interfacial charge transfer resistance, and strong electron donating capacity.
Article
Multidisciplinary Sciences
Farzaneh Baghal Asghari, Mohammad Hadi Dehghani, Reza Dehghanzadeh, Davoud Farajzadeh, Dariush Shanehbandi, Amir Hossein Mahvi, Kamyar Yaghmaeian, Akbar Rajabi
Summary: This study evaluated the effectiveness of ozonation in reducing antibiotic-resistant bacteria and antibiotic resistance genes in hospital wastewaters. Results showed that ozone treatment significantly decreased bacterial cells and ARGs concentrations, with varying levels of reduction depending on the initial bacterial concentration. Additionally, the study found a specific order of gene reduction by ozonation, providing insights into the fate of ARGs during the wastewater treatment process.
SCIENTIFIC REPORTS
(2021)
Article
Microbiology
Giuseppina Caggiano, Marco Lopuzzo, Valentina Spagnuolo, Giusy Diella, Francesco Triggiano, Marilena D'Ambrosio, Paolo Trerotoli, Vincenzo Marcotrigiano, Giovanna Barbuti, Giovanni Trifone Sorrenti, Pantaleo Magarelli, Domenico Pio Sorrenti, Christian Napoli, Maria Teresa Montagna
Summary: Awareness of the importance of microbial contamination of air and surfaces has increased during the COVID-19 pandemic. This study evaluated the presence of bacteria and fungi in the air and on surfaces in critical areas of supermarkets with and without an ozonation system. The presence of bacteria and fungi differed significantly between supermarkets with and without the ozonation system. This is the first study in Italy to evaluate the effect of ozone on commercial structures.
Review
Environmental Sciences
Victor Pertegal, Eva Riquelme, Julia Lozano-Serra, Pablo Canizares, Manuel A. Rodrigo, Cristina Saez, Engracia Lacasa
Summary: This study evaluates the concentration of airborne bacteria and fungi in the University Hospital Complex of Albacete (Spain), and identifies Staphylococcus as the most prevalent bacterial genus and Aspergillus as the dominant fungal genus. The lack of advanced technology for indoor air purification requires further research, and the integration of filtration, irradiation, and chemical gas treatment systems is discussed as a potential solution.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Teresa Moreno, Rosa Maria Pinto, Albert Bosch, Natalia Moreno, Andres Alastuey, Maria Cruz Minguillon, Eduard Anfruns-Estrada, Susana Guix, Cristina Fuentes, Giorgio Buonanno, Luca Stabile, Lidia Morawska, Xavier Querol
Summary: A study on public transport in Barcelona during the summer of 2020 found traces of SARS-CoV-2 viral RNA in surface and air samples, with more viral remnants on bus surfaces compared to trains. Although signs of viral RNA were detected, they were considered unlikely to be infectious. Vigilant attention to ventilation systems and regular disinfection of vehicles are necessary to effectively eliminate viral traces, especially during peak COVID-19 periods.
ENVIRONMENT INTERNATIONAL
(2021)
