Recent Progress in Modified Polymer-Based PPE in Fight Against COVID-19 and Beyond

Muzata, Tanyaradzwa Sympathy; Gebrekrstos, Amanuel; Ray, Suprakas Sinha

doi:10.1021/acsomega.1c04754

Cited by 12 publications

(3 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, face shields are manufactured with polycarbonate (PC) and poly(ethylene terephthalate) (PET) sheets 34 . Surgical masks are usually made of same material as N95 masks which is polypropylene (PP) 35 . Disposable isolation gowns are made of synthetic fibers (e.g., polypropylene, polyester, polyethylene), while reusable gowns are typically made of 100% cotton, 100% polyester, or polyester/cotton blends 36 .…”

Section: Discussionmentioning

confidence: 99%

Plasma-generated reactive water mist for disinfection of N95 respirators laden with MS2 and T4 bacteriophage viruses

Waring

Fridman

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Due to the shortage of personal protective equipment (PPE) during the COVID-19 pandemic, the interest and demand for sterilization devices to reuse PPE has increased. For reuse of face masks, they must be effectively decontaminated of potential infectious agents without compromising its filtration ability during sterilization. In this study, we utilized an atmospheric pressure pulsed dielectric barrier discharge (DBD), combined with nebulized liquid microdroplets to generate plasma-activated mist (PAM). MS2 and T4 bacteriophages were used to conduct the decontamination tests on two types of N95 respirators. Results showed at least a 2-log reduction of MS2 and T4 on N95 respirators treated in one cycle with 7.8% hydrogen peroxide PAM and at least a 3-log reduction treated in 10% hydrogen peroxide PAM. In addition, it was found that there was no significant degradation in filtration efficiency of N95 respirators (3M 1860 and 1804) treated in 10% hydrogen peroxide PAM found after 20 cycles. In terms of re-useability of masks after treatment as determined, it was shown that the elastic straps of 3M 1804 were fragmented after 20 treatment cycles rendering them unusable, while the straps of 3M 1860 were not negatively affected even after 20 disinfection cycles.

show abstract

Section: Discussionmentioning

confidence: 99%

Plasma-generated reactive water mist for disinfection of N95 respirators laden with MS2 and T4 bacteriophage viruses

Waring

Fridman

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Natechin, a simple polyphenol, has also been grafted onto sanitary wipes to confer virucidal capability. [ 109 ] Similarly, polyethyleneimine was directly polymerized onto silica particles to confer antiviral activity. [ 110 ] Other virucidal materials such as metals are more challenging to apply on surfaces than polymers.…”

Section: Materials To Prevent Secondary Sources Of Infection From Res...mentioning

confidence: 99%

Role of bioaerosol in virus transmission and material‐based countermeasures

et al. 2022

View full text Add to dashboard Cite

Respiratory pathogens transmit primarily through particles such as droplets and aerosols. Although often overlooked, the resuspension of settled droplets is also a key facilitator of disease transmission. In this review, we discuss the three main mechanisms of aerosol generation: direct generation such as coughing and sneezing, indirect generation such as medical procedures, and resuspension of settled droplets and aerosols. The size of particles and environmental factors influence their airborne lifetime and ability to cause infection. Specifically, humidity and temperature are key factors controlling the evaporation of suspended droplets, consequently affecting the duration in which particles remain airborne. We also suggest material-based approaches for effective prevention of disease transmission. These approaches include electrostatically charged virucidal agents and surface coatings, which have been shown to be highly effective in deactivating and reducing resuspension of pathogen-laden aerosols.

show abstract

“…One effective strategy has been to coat the PP NWF with antimicrobial and antioxidant substances, thus significantly improving its protective properties. [ 3–6 ]…”

Section: Introductionmentioning

confidence: 99%

Coating of Polypropylene Non‐Woven Fabric with Layered Double Hydroxides Bearing Antioxidant and Antibacterial Natural Compounds

Cicogna,

Passaglia,

Elainaoui

et al. 2023

Macro Chemistry & Physics

View full text Add to dashboard Cite

Layered double hydroxides (LDH) containing immobilized rosmarinic acid or eugenol have been employed to functionalize polypropylene (PP) nonwoven fabric (NWF), commonly used to manufacture protective clothing such as surgical masks. Rosmarinic acid and eugenol have recognized biological activities, such as antimicrobial, antioxidant, and anti‐inflammatory capabilities, and they have been employed in this work both as synthetic, commercial compounds and as raw mixtures extracted from agri‐food matrices. These encapsulated hybrid systems have been designed to gradually release the active molecules, while protecting them from degradation processes caused by light and heat. Two different NWF modification strategies have been employed to increase the adhesion capacity of the hybrids: cold plasma treatment with oxygen and polydopamine coating. Both methodologies have increased the amount of hybrid deposited on the NWF surfaces, giving significant resistance to thermo‐oxidation, controlled migratory capacity of active molecules, and, in the case of the eugenol‐containing system, significant bactericidal activity against Staphylococcus aureus.This article is protected by copyright. All rights reserved

show abstract

Recent Progress in Modified Polymer-Based PPE in Fight Against COVID-19 and Beyond

Cited by 12 publications

References 39 publications

Plasma-generated reactive water mist for disinfection of N95 respirators laden with MS2 and T4 bacteriophage viruses

Plasma-generated reactive water mist for disinfection of N95 respirators laden with MS2 and T4 bacteriophage viruses

Role of bioaerosol in virus transmission and material‐based countermeasures

Coating of Polypropylene Non‐Woven Fabric with Layered Double Hydroxides Bearing Antioxidant and Antibacterial Natural Compounds

Contact Info

Product

Resources

About