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첨단연성물질 연구단
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Photoactive Antiviral Face Mask with Self-Sterilization and Reusability

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Title
Photoactive Antiviral Face Mask with Self-Sterilization and Reusability
Author(s)
Sumit Kumar; Mamata Karmacharya; Joshi, Shalik Ram; Gulenko, Oleksandra; Juhee Park; Kim, Gun-Ho; Yoon-Kyoung Cho
Subject
COPPER, ; SURFACES
Publication Date
2021-01-13
Journal
NANO LETTERS, v.21, no.1, pp.337 - 343
Publisher
AMER CHEMICAL SOC
Abstract
Since the emergence of the COVID-19 pandemic outbreak, the increasing demand and disposal of surgical masks has resulted in significant economic costs and environmental impacts. Here, we applied a dual-channel spray-assisted nanocoating hybrid of shellac/copper nanoparticles (CuNPs) to a nonwoven surgical mask, thereby increasing the hydrophobicity of the surface and repelling aqueous droplets. The resulting surface showed outstanding photoactivity (combined photocatalytic and photothermal properties) for antimicrobial action, conferring reusability and self-sterilizing ability to the masks. Under solar illumination, the temperature of this photoactive antiviral mask (PAM) rapidly increased to >70 degrees C, generating a high level of free radicals that disrupted the membrane of nanosized (similar to 100 nm) virus-like particles and made the masks self-cleaning and reusable. This PAM design can provide significant protection against the transmission of viral aerosols in the fight against the COVID-19 pandemic.
URI
https://pr.ibs.re.kr/handle/8788114/9240
DOI
10.1021/acs.nanolett.0c03725
ISSN
1530-6984
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > 1. Journal Papers (저널논문)
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