Article
Multidisciplinary Sciences
Min Huang, Md Kamrul Hasan, Kavita Rathore, Md Abdullah Hil Baky, John Lassalle, Jamie Kraus, Matthew Burnette, Christopher Campbell, Kunpeng Wang, Howard Jemison, Suresh Pillai, Matt Pharr, David Staack
Summary: This paper presents a study on using plasma reactive oxygen species (ROS) method for decontamination of PPE. The results show that the treated respirators maintain their filtration efficiency and integrity, demonstrating the effectiveness of the plasma ROS method in meeting the increased demand for PPE during the COVID-19 pandemic.
Article
Chemistry, Multidisciplinary
Je-Chuang Wang, Wen-Chien Huang, Ken-Fa Cheng, Nien-Tung Liu, Kuo-Hui Wu
Summary: The study evaluated the efficacy of expired disinfectants in deactivating biological and chemical toxins on building material surfaces. The results showed that despite being past their expiration dates, the disinfectants had high effectiveness in deactivating biological toxins.
Article
Biotechnology & Applied Microbiology
Brian McEvoy, Ana Maksimovic, Neil J. Rowan
Summary: This study aimed to determine the inactivation kinetics of Geobacillus stearothermophilus and Bacillus atrophaeus biological indicators treated with vaporized hydrogen peroxide (VH2O2) at an industrial scale. The results showed that the VH2O2-treated microorganisms exhibited log linear inactivation kinetics, and no significant topographical changes were observed in the outer surface of the treated spores. Therefore, this study validates the appropriateness of using VH2O2 as a sterilization method.
JOURNAL OF APPLIED MICROBIOLOGY
(2023)
Article
Pharmacology & Pharmacy
Victor Santos-Rosales, Beatriz Magarinos, Ricardo Starbird, Javier Suarez-Gonzalez, Jose B. Farina, Carmen Alvarez-Lorenzo, Carlos A. Garcia-Gonzalez
Summary: A supercritical CO2 sterilization protocol was successfully implemented to prepare and sterilize polymeric scaffolds for regenerative medicine. The sterilization conditions were established after screening against various bacteria and spores, and a transition to compressed foaming was achieved through controlled depressurization. Using this technology, sterile scaffolds with well-controlled pore architecture were obtained, surpassing standard gamma radiation sterilization methods.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
Article
Cell Biology
Min Lu, Shen Wang, Tao Wang, Sisi Hu, Brijesh Bhayana, Momoko Ishii, Yifei Kong, Yuchen Cai, Tianhong Dai, Wenguo Cui, Mei X. Wu
Summary: The combination therapy of blue light and phytochemical carvacrol was found to effectively kill a range of bacteria, including antibiotic-resistant strains, with significant efficacy against acute and established infections. This unique phototoxic reaction selectively targeted bacteria without adverse effects on mammalian cells or host DNA, providing a promising strategy to combat multidrug-resistant bacteria.
SCIENCE TRANSLATIONAL MEDICINE
(2021)
Article
Chemistry, Multidisciplinary
Rakesh Ruchel Khanikar, Monalisa Kalita, Parismita Kalita, Bhaswati Kashyap, Santanu Das, Mojibur R. Khan, Heremba Bailung, Kamatchi Sankaranarayanan
Summary: This study demonstrates that cold atmospheric pressure plasma treatment can deactivate the SARS-CoV-2 spike protein and degrade the RNA of the virus. The deactivation of spike protein binding is correlated with the higher concentration of hydrogen peroxide formation due to the interaction with reactive oxygen species in the plasma. This green process, using noble gases to generate reactive oxygen species, shows potential for designing disinfection systems and biomedical applications.
Article
Biochemistry & Molecular Biology
Eirini Kanata, Ioannis Paspaltsis, Sotiris Sotiriadis, Chrysanthi Berberidou, Sophia Tsoumachidou, Dimitra Dafou, Konstantinos Xanthopoulos, Minas Arsenakis, Athanasios Arsenakis, Ioannis Poulios, Theodoros Sklaviadis
Summary: Photocatalytic inactivation of pathogens in aqueous waste is a topic of increasing interest. This study compares the effectiveness of homogeneous and heterogeneous photocatalysis using Fe+3 and TiO2, respectively, for inactivating various microorganisms. It is found that homogeneous photocatalysis achieves more efficient microorganism inactivation in a shorter processing time compared to heterogeneous photocatalysis. Additional optimization of TiO2 photocatalysis with H2O2 supplementation further enhances the inactivation efficiency.
Article
Food Science & Technology
Philipp Stier, Sabrina Maul, Ulrich Kulozik
Summary: This study evaluated the effects of sporulation temperature and pH on the resistance of G. stearothermophilus ATCC 7953 spores, derived a mathematical equation describing the resistance, and observed the highest resistance value under specific conditions.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Azahara Martinez-Garcia, Samira Nahim-Granados, Ilaria Berruti, Isabel Oller, Inmaculada Polo-Lopez
Summary: The addition of low concentrations of H2O2 and/or increased dissolved oxygen has been tested to enhance the disinfection efficiency of solar disinfection (SODIS) for roof-harvested rainwater. Results show that both methods can improve pathogen inactivation, with H2O2 having a more significant effect on all pathogens and dissolved oxygen primarily affecting E. coli, P. aeruginosa, and E. faecalis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Food Science & Technology
Ming-Hsun Shen, Rakesh K. Singh
Summary: This study investigated the effect of H2O2 treatment on catalase-inactivated peanuts and found that it effectively reduced aflatoxins. Higher treatment temperature and catalase inactivation improved the efficacy of AF reduction. The oil quality of treated peanuts was not significantly affected. The weight loss and oil quality change of the treated peanuts were negligible. Peanuts were able to keep intact after the treatment.
Article
Biotechnology & Applied Microbiology
Won-Jae Song, Dong-Hyun Kang
Summary: The study evaluated the efficacy of VHPV in reducing foodborne pathogens in black and red pepper without causing color changes. Results showed that VHPV treatment significantly decreased pathogen quantities in both types of pepper, with minimal impact on color. This study highlights the potential of VHPV as a method for pathogen reduction in food products.
JOURNAL OF APPLIED MICROBIOLOGY
(2022)
Article
Engineering, Environmental
Baiyang Chen, Yuanxi Huang, Qi Zhang, Dionysios D. Dionysiou, Lei Wang, Juan Li
Summary: The study found that VUV irradiation of water leads to the concurrent formation of nitrite and hydrogen peroxide, with increasing pH and decreasing oxygen promoting the conversion of nitrate into nitrite but suppressing hydrogen peroxide formation. These findings highlight the importance of considering both the benefits and drawbacks of VUV processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Po-Kai Hsu, Yohei Takahashi, Ebe Merilo, Alex Costa, Li Zhang, Klara Kernig, Katie H. Lee, Julian Schroeder
Summary: The study investigated the kinetics of high VPD-induced stomatal responses, revealing that SLAC1 plays a more significant role in stomatal VPD signaling compared to ALMT12/QUAC1. The research also showed that VPD-induced stomatal closure is independent of the CO2 signal-transduction pathway. Calcium imaging demonstrated transient changes in cytoplasmic Ca2+ in guard cells under osmotic stress.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Multidisciplinary Sciences
Joseph P. Wood, Matthew Magnuson, Abderrahmane Touati, Jerome Gilberry, Jonathan Sawyer, Timothy Chamberlain, Stella McDonald, David Hook
Summary: Research has shown that disinfection is recommended to limit the spread of the COVID-19 disease caused by airborne transmission of the SARS-CoV-2 virus. Evaluation of spray parameters for various types of sprayers and foggers revealed that most devices produce spray droplets of suitable size and effectively cover objects.
Article
Chemistry, Multidisciplinary
Zheng-Yang Huo, Yuxin Yang, Jang-Mook Jeong, Xiaoxiong Wang, He Zhang, Mingdeng Wei, Keren Dai, Peixun Xiong, Sang-Woo Kim
Summary: A self-powered water disinfection system, driven by triboelectric nano generators, is presented for efficient water disinfection in rural and disaster-stricken areas lacking power supplies. The system utilizes a flow-driven TENG to generate electricity and a metal-organic framework nanowire array for H2O2 generation and electroporation. The prototype achieves complete disinfection over a wide range of flows with low water flow thresholds, offering promising potential for pathogen control.