Antiviral activity of salt-coated materials against SARS-CoV-2 DOI Creative Commons
Christopher M. Coleman, Belinda Wang,

Yixin Wang

et al.

Access Microbiology, Journal Year: 2023, Volume and Issue: 5(9)

Published: Sept. 1, 2023

The SARS-CoV-2 pandemic demonstrated the importance of human coronaviruses and need to develop materials prevent spread emergent respiratory viruses. Coating surfaces with antiviral is a major interest in controlling viruses, especially high-risk or high-traffic areas. A number different coatings for have been proposed, each their own advantages disadvantages. Here we show that simple salt coating on range surfaces, including novel biomass aerogel can reduce infectivity placed onto surface. This suggests apply could be applied an effect against SARS-CoV-2, as well other potential emerging

Language: Английский

Nonwoven fabric coated with cerium oxide nanoparticles for viral inactivation and transmission Inhibition DOI Creative Commons

Eisuke Umezawa,

K. Fujino, Hiroko Yamanaka

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 25, 2025

Abstract Studies on virus inactivation by metal nanoparticles indicate that antiviral activity is influenced the stabilizer particle surface. Additionally, cerium oxide stabilized with boric acid (BA-CeO 2 ) exhibit potent activity. However, previous studies utilized BA-CeO dispersed in liquid form and did not fully account for practical application of materials real-world environments. We investigated nonwoven fabric coated (NC-NWF). When a medium containing viruses was placed NC-NWF, titers mouse hepatitis (MHV), influenza A virus, feline calicivirus were reduced > 99% within h. Furthermore, transmission MHV assessed cages lined NC-NWF. The divided into two compartments using mesh housing infected uninfected mice either side. results indicated significantly lower antibody titer against naïve NC-NWF partition than control partition. placing h, followed 24 resulted those fabric. These findings suggest exhibits retains efficacy living environments, such as rearing cages.

Language: Английский

Citations

0
Review of Engineering Controls for Indoor Air Quality: A Systems Design Perspective DOI Open Access
Simon Li

Sustainability, Journal Year: 2023, Volume and Issue: 15(19), P. 14232 - 14232

Published: Sept. 26, 2023

This paper aims to review the engineering controls for indoor air quality (IAQ) from a systems design perspective. As result of review, we classify literature content into three categories: (1) treatments, (2) dissemination control strategies, and (3) information technology. Indoor treatments can be generally interpreted as “cleaning” aspect, which covers ventilation contaminant removal techniques. Dissemination focuses on how contaminants generated in an space transmitted, where four types are classified. The category technology discusses IAQ sensors monitoring, well applications Internet Things data. Then, further analyze reviewed by performing functional analysis. Along with discussion functions, suggest some techniques, such decoupling flexibility/resilience, expected promote more thinking designing solutions.

Language: Английский

Citations

9
Anti-Viral Surfaces in the Fight against the Spread of Coronaviruses DOI Creative Commons
Angelika Kwiatkowska, Ludomira H. Granicka

Membranes, Journal Year: 2023, Volume and Issue: 13(5), P. 464 - 464

Published: April 27, 2023

This review is conducted against the background of nanotechnology, which provides us with a chance to effectively combat spread coronaviruses, and primarily concerns polyelectrolytes their usability for obtaining protective function viruses as carriers anti-viral agents, vaccine adjuvants, and, in particular, direct activity. covers nanomembranes form nano-coatings or nanoparticles built natural synthetic polyelectrolytes--either alone else nanocomposites creating an interface viruses. There are not wide variety activity SARS-CoV-2, but materials that effective virucidal evaluations HIV, SARS-CoV, MERS-CoV taken into account potentially active SARS-CoV-2. Developing new approaches interfaces will continue be relevant future.

Language: Английский

Citations

8
Self-Sanitization in a Silk Nanofibrous Network for Biodegradable PM0.3 Filters with In Situ Joule Heating DOI Creative Commons
Mozakkar Hossain, Keshab Karmakar, Prakash Sarkar

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(8), P. 9137 - 9146

Published: Feb. 15, 2024

In the contemporary way of life, face masks are crucial in managing disease transmission and battling air pollution. However, two key challenges, self-sanitization biodegradation masks, need immediate attention, prompting development innovative solutions for future. this study, we present a novel approach that combines controlled acid hydrolysis mechanical chopping to synthesize silk nanofibrous network (SNN) seamlessly integrated with wearable stainless steel mesh, resulting fabrication self-sanitizable masks. The distinct architecture showcases remarkable filtration efficiencies 91.4, 95.4, 98.3% PM0.3, PM0.5, PM1.0, respectively, while maintaining comfortable level breathability (ΔP = 92 Pa). Additionally, mask shows thermal resistance 472 °C cm2 W–1 generates heat spontaneously at low voltage, deactivating Escherichia coli bacteria on SNN, enabling self-sanitization. SNN exhibited complete disintegration within environment just 10 days, highlighting biodegradability mask. unique advantage filter is simultaneously achieved first time, which will open avenues accomplish environmentally benign next-generation

Language: Английский

Citations

2
Utilizing Rapid Hydrogen Peroxide Generation from 6-Hydroxycatechol to Design Moisture-Activated, Self-Disinfecting Coating DOI

Fatemeh Razaviamri,

Sneha Singh,

James Manuel

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(21), P. 26998 - 27010

Published: May 15, 2024

A coating that can be activated by moisture found in respiratory droplets could a convenient and effective way to control the spread of airborne pathogens reduce fomite transmission. Here, ability novel 6-hydroxycatechol-containing polymer function as self-disinfecting on surface polypropylene (PP) fabric was explored. Catechol is main adhesive molecule mussel proteins. Molecular oxygen an aqueous solution oxidize catechol generate known disinfectant, hydrogen peroxide (H2O2), byproduct. However, given limited amount droplets, there need enhance rate autoxidation antipathogenic levels H2O2. 6-Hydroxycatechol contains electron donating hydroxyl group 6-position benzene ring, which makes more susceptible autoxidation. 6-Hydroxycatechol-coated PP generated over 3000 μM H2O2 within 1 h when hydrated with small (100 μL PBS). The three orders magnitude higher compared unmodified catechol. 6-Hydroxycatechol-containing demonstrated antimicrobial effect against both Gram-positive (Staphylococcus aureus Staphylococcus epidermidis) Gram-negative (Pseudomonas aeruginosa Escherichia coli) bacteria Similarly, reduced infectivity bovine viral diarrhea virus human coronavirus 229E much 2.5 log reduction value (a 99.7% load). Coatings containing did not sufficient demonstrate significant virucidal effects. potentially present for disinfecting broad range pathogens.

Language: Английский

Citations

2
Virus and bacterial removal ability of TiO2 nanowire-based self-supported hybrid membranes DOI Creative Commons
Mohammed Ahmed Shehab, Emma Szőri-Dorogházi,

Szilvia Szabó

et al.

Arabian Journal of Chemistry, Journal Year: 2022, Volume and Issue: 16(1), P. 104388 - 104388

Published: Nov. 8, 2022

Development and application of hybrid membranes containing multi-component materials are increasing day by in the fields environmental protection water treatment. In this research, efficiency titania nanowire (TiO2 NW)-based self-supported was investigated removal Escherichia coli (E. coli) bacteria MS2 bacteriophages from contaminated mimicking microorganism suspension. Furthermore, toxicology tests on as-prepared were also performed. TiO2 NWs coated with iron(III) oxide (Fe2O3) copper(II) (CuO) nanoparticles, respectively, cellulose used as reinforcement material. It found that, functionalisation strongly affected ability membranes, which can be due to electrostatic interactions between surface membrane bacteriophages. The most efficient (greater than or equal 99.99%) obtained NW-CuO-cellulose at pH 7.0. fabricated characterized micro computed tomography (μCT), Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), dynamic light scattering (DLS), contact angle measurement inductively coupled optical emission spectrometry (ICP-OES) techniques. This study shows a simple route usage novel effective inorganic nanowire-based for virus removal, providing new pathways field filtration technologies.

Language: Английский

Citations

11
Current perspectives on the development of virucidal nano surfaces DOI Creative Commons
Denver P. Linklater, Samson W. L. Mah,

Vassil Tzanov

et al.

Current Opinion in Colloid & Interface Science, Journal Year: 2023, Volume and Issue: 67, P. 101720 - 101720

Published: June 17, 2023

Language: Английский

Citations

6
Effect of multifunctional cationic polymer coatings on mitigation of broad microbial pathogens DOI Creative Commons

Jianliang Gong,

Chun-Yin Or,

Eric Tung-Po Sze

et al.

Microbiology Spectrum, Journal Year: 2024, Volume and Issue: 12(9)

Published: Aug. 5, 2024

ABSTRACT Infection control measures to prevent viral and bacterial infection spread are critical maintaining a healthy environment. Pathogens such as viruses pyogenic bacteria can cause infectious complications. Viruses SARS-CoV-2 known through the aerosol route on fomite surfaces, lasting for prolonged time in Developing technologies mitigate of pathogens airborne routes surfaces is critical, especially patients at high risk Multifunctional coatings with broad capacity bind that result inactivation disrupt inanimate surface spread. This study uses C-POLAR, proprietary cationic, polyamine, organic polymer charged, dielectric property coated onto air filtration material textiles. Using both live particles bovine coronavirus models, C-POLAR-treated shows dramatic 2-log reduction circulating inoculum. consistent static room model, indicating simple airflow C-POLAR hanging capture significant particles. Finally, Gram-positive Gram-negative applied textiles using viability indicator demonstrate eradication surfaces. These data suggest cationic eradicate human pathogens, potentially interrupting more resilient IMPORTANCE home, work, hospital We test capable capturing eradicating by applying The addition improvement an environment against pathogens.

Language: Английский

Citations

1
Synergistic Effects of Polydopamine/Medical Stone Bio-Adsorbents for Enhanced Interfacial Adsorption and Dynamic Filtration of Bacteria DOI Creative Commons
Wenfeng Chen,

Sha Wan,

Hongxin Lin

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(21), P. 3027 - 3027

Published: Oct. 29, 2024

Polymer-based wastewater disinfection, which is typically performed using chemical oxidation or irradiation, can result in various toxic byproducts and corrosion under harsh environments. This study introduces a robust bio-adsorbent prepared from naturally abundant polydopamine-modified medical stone (MS@PDA) for the high-efficiency removal of bacteria water. The PDA nanocoating be easily applied through an situ self-polymerization process, resulting considerably high bacterial adsorption capacity 6.6 k pcs mm−2 Staphylococcus aureus. A cyclic flow-through dynamic filtration disinfection system was implemented MS@PDA porous filter with average pore size 21.8 ± 1.4 µm porosity ~83%, achieving 5.2–6.0-fold enhancement cumulative efficiency MS@PDA2. underlying mechanisms were elucidated synergistic effects interfacial bio-adsorption size-dependent interception. Notably, captured on surface could killed enhanced photothermal inherent antimicrobial properties mineral stone. Thus, this not only provides new type advanced but also perspectives efficient cost-effective approach sustainable treatment.

Language: Английский

Citations

1
Biocomposites - Recent Advances DOI
Magdy M. M. Elnashar, Selcan Karakuş, Isra Dmour

et al.

IntechOpen eBooks, Journal Year: 2022, Volume and Issue: unknown

Published: Nov. 28, 2022

This book discusses the synthesis, characterization and applications of biocomposites nano-biocomposites. It focuses on recent studies, applications, new technological developments in fundamental properties biocomposites. The includes six chapters that address topics such as biomedical biopolymers, biocomposites,

Language: Английский

Citations

5