Strategies for safe management of hospital wastewater during the COVID-19 pandemic

International Journal of Environmental Science and Technology, Год журнала: 2023, Номер 20(12), С. 13941 - 13956

Опубликована: Фев. 13, 2023

Язык: Английский

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Turning dextran into antibacterial fibers: Quaternary ammonium salt for antibacterial treatment and wound healing

Arabian Journal of Chemistry, Год журнала: 2024, Номер 17(6), С. 105771 - 105771

Опубликована: Апрель 7, 2024

This study aims to develop new quaternary ammonium salt-based antimicrobial materials with good biocompatibility, biosafety, and strong properties that promote wound healing in infected wounds. First, four salt antibacterial fibers (QASAF) are constructed: QASAF-C12, QASAF-C14, QASAF-C16, QASAF-C18, varying carbon chain lengths of C12, C14, C16, C18, respectively. Then, their structure is characterized by proton nuclear magnetic resonance (NMR) analysis hemolytic cytotoxic also investigated. QASAFs then evaluated for vivo vitro performance against Staphylococcus aureus (S. aureus) methicillin-resistant (MRSA). Finally, the effect QASAF on promoting wounds using mouse models S. MRSA. The obtained results suggest non-toxic cells 25–125 µg/mL concentration range, slightly hemolytic, has a biosafety profile. QASAF-C18 shows best significant pro-healing effects QASAF-C12 exhibits MRSA effects. novel ammonium-based material provides reference developing biocompatible dressings.

Язык: Английский

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Electrochemical Reactors for Continuous Decentralized H₂O₂ Production

Angewandte Chemie, Год журнала: 2022, Номер 134(35)

Опубликована: Июнь 14, 2022

Abstract The global utilization of H 2 O is currently around 4 million tons per year and expected to continue increase in the future. mainly produced by anthraquinone process, which involves multiple steps terms alkylanthraquinone hydrogenation/oxidation organic solvents liquid–liquid extraction . energy‐intensive environmentally unfriendly process does not meet requirements sustainable low‐carbon development. electrocatalytic two‐electron (2 e − ) oxygen reduction reaction (ORR) driven renewable energy (e.g. solar wind power) offers a more economical, low‐carbon, greener route produce However, continuous decentralized electrosynthesis still poses many challenges. This Minireview first summarizes development devices for electrosynthesis, then introduces each component, assembly some optimization strategies.

Язык: Английский

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Antimicrobial surface coating as a pathway to curb resistance: preparation, mode of action and future perspective

Journal of Coatings Technology and Research, Год журнала: 2024, Номер 21(3), С. 799 - 810

Опубликована: Фев. 12, 2024

Язык: Английский

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Can imported cold food cause COVID-19 recurrent outbreaks? A review

Environmental Chemistry Letters, Год журнала: 2021, Номер 20(1), С. 119 - 129

Опубликована: Сен. 7, 2021

The coronavirus disease 2019 (COVID-19) pandemic is still spreading all over the world. Although China quickly brought severe acute respiratory syndrome 2 (SARS-CoV-2) under control in 2020, sporadic outbreaks have recurred from time to time. Outbreaks since June 2020 suggested that imported cold food supply chain a major cause for recurrence and spread of COVID-19. Here we review recurrent March 2021, analyse main causes transmission by port fork. Contaminated or packaging material can transmit virus through 'person-to-thing-to-person', contrast with classical 'person-to-person' pathway. We decribe safety precautions system, operating environment people along logistics. Surface disinfection nucleic acid inspection are needed each stage logistics supply.

Язык: Английский

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Recognizing object surface materials to adapt robotic disinfection in infrastructure facilities

Computer-Aided Civil and Infrastructure Engineering, Год журнала: 2022, Номер 37(12), С. 1521 - 1546

Опубликована: Янв. 10, 2022

Abstract Existing disinfection robots are not intelligent enough to adapt their actions object surface materials for precise and effective disinfection. To address this problem, a new framework is developed enable the robot recognize various its methods be compatible with recognized materials. Specifically, deep learning network proposed that integrates multi‐level multi‐scale features classify on contaminated surfaces requiring The infection risk of computed choose appropriate modes parameters. material recognition method demonstrates state‐of‐the‐art performance, achieving an accuracy 92.24% 91.84% Materials in Context Database validation test datasets, respectively. was also tested evaluated context healthcare facilities, where classification achieved 89.09%, adaptive robotic successfully implemented.

Язык: Английский

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A narrative review of alternative transmission routes of COVID 19: what we know so far

Pathogens and Global Health, Год журнала: 2023, Номер 117(8), С. 681 - 695

Опубликована: Июнь 23, 2023

The Coronavirus disease 19 (COVID-19) pandemics, caused by severe acute respiratory syndrome coronaviruses, SARS-CoV-2, represent an unprecedented public health challenge. Beside person-to-person contagion via airborne droplets and aerosol, which is the main SARS-CoV-2's route of transmission, alternative modes, including transmission fomites, food packaging, have been investigated for their potential impact on SARS-CoV-2 diffusion. In this context, several studies demonstrated persistence RNA and, in some cases, infectious particles exposed water samples, confirming possible role as sources contamination transmission. Indeed, fomite-to-human has a few cases where had excluded. addition, recent supported possibility acquiring COVID-19 through fecal-oro route; occurrence gastrointestinal infections, absence symptoms, also opens intriguing that these could be directly related to ingestion contaminated water. Overall, most considered routes low epidemiological relevance; however, it should they play important role, or even prevalent, settings characterized different environmental socio-economic conditions. review, we discuss findings regarding routes, with aim disclose what known about spread stimulate research field, potentially great impact, especially low-resource contexts.

Язык: Английский

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Inactivation mechanism of cold plasma combined with 222 nm ultraviolet for spike protein and its application in disinfecting of SARS-CoV-2

Journal of Hazardous Materials, Год журнала: 2024, Номер 465, С. 133458 - 133458

Опубликована: Янв. 9, 2024

Язык: Английский

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Occupational Health and Safety Measures in Healthcare Settings during COVID-19: Strategies for Protecting Staff, Patients and Visitors

Disaster Medicine and Public Health Preparedness, Год журнала: 2021, Номер 17

Опубликована: Сен. 14, 2021

Abstract The COVID-19 (SARS-CoV-2) pandemic has profoundly impacted almost every aspect of healthcare systems worldwide, placing the health and safety frontline workers at risk, it still continues to remain an important public challenge. Several hospitals have put in place strategies manage space, staff, supplies order continue deliver optimum care patients while same time protecting staff patients. However, emergence second third waves virus with influx new cases add additional level complexity already challenging situation containing spread lowering rate transmission, thus pushing limit. In this narrative review paper, we describe various including administrative controls, environmental use personal protective equipment, implemented by occupational departments for protection workers, patients, visitors from SARS-CoV-2 infection. safeguard through implementation effective infection control measures, adequate management possible outbreaks minimization risk nosocomial transmission is strategy any facility. High quality patient hinges on ensuring that providers are well protected supported so they can provide best their

Язык: Английский

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A systematic overview of metal nanoparticles as alternative disinfectants for emerging SARS-CoV-2 variants

Archives of Microbiology, Год журнала: 2024, Номер 206(3)

Опубликована: Фев. 19, 2024

Язык: Английский

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