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Always-on photocatalytic antibacterial facemask with mini UV-LED array

The facemask is a device to protect yourself and others against pandemics, such as coronavirus disease 2019 (COVID-19), and adding a functional filter to the facemask could offer extra protection against infectious microbes (such as bacteria and viruses) to the wearer. Here, we designed and fabricat...

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Autores principales: Nguyen, Uyen Nhat Trieu, Do, Khai Hoang, Jang, Bongkyun, Kim, Kyung-Shik, Kim, Jae-Hyun, Lee, Seung-Mo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier Ltd. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8828298/
http://dx.doi.org/10.1016/j.mtsust.2022.100117
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author Nguyen, Uyen Nhat Trieu
Do, Khai Hoang
Jang, Bongkyun
Kim, Kyung-Shik
Kim, Jae-Hyun
Lee, Seung-Mo
author_facet Nguyen, Uyen Nhat Trieu
Do, Khai Hoang
Jang, Bongkyun
Kim, Kyung-Shik
Kim, Jae-Hyun
Lee, Seung-Mo
author_sort Nguyen, Uyen Nhat Trieu
collection PubMed
description The facemask is a device to protect yourself and others against pandemics, such as coronavirus disease 2019 (COVID-19), and adding a functional filter to the facemask could offer extra protection against infectious microbes (such as bacteria and viruses) to the wearer. Here, we designed and fabricated an always-on photocatalytic antibacterial facemask, which comprised a reusable polypropylene filter layer coated with the photocatalytic laminated ZnO/TiO(2) bilayer and a separate UV-LEDs layer to supply UV whenever necessary. The fabricated photocatalytic filter was able to be directly inserted into the reusable facemask together with the UV-LEDs layer. This facemask could be used repeatedly and sustainably anytime and anywhere regardless of solar illumination. The photocatalytic filter exhibited an excellent photocatalytic antibacterial effect likely due to recombination suppression of electrons and holes of ZnO/TiO(2) bilayer and wetting transition from hydrophilic to superhydrophilic state on the surface of the filter. Thanks to the kirigami pattern in both photocatalytic filter and UV-LEDs layer, full-face covering, breathability, flexibility, and the snug fit are believed to be improved. Although further in-depth studies are still needed and there is a long way to go, we expect our design idea on the facemask to be considered in various fields.
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spelling pubmed-88282982022-02-10 Always-on photocatalytic antibacterial facemask with mini UV-LED array Nguyen, Uyen Nhat Trieu Do, Khai Hoang Jang, Bongkyun Kim, Kyung-Shik Kim, Jae-Hyun Lee, Seung-Mo Materials Today Sustainability Article The facemask is a device to protect yourself and others against pandemics, such as coronavirus disease 2019 (COVID-19), and adding a functional filter to the facemask could offer extra protection against infectious microbes (such as bacteria and viruses) to the wearer. Here, we designed and fabricated an always-on photocatalytic antibacterial facemask, which comprised a reusable polypropylene filter layer coated with the photocatalytic laminated ZnO/TiO(2) bilayer and a separate UV-LEDs layer to supply UV whenever necessary. The fabricated photocatalytic filter was able to be directly inserted into the reusable facemask together with the UV-LEDs layer. This facemask could be used repeatedly and sustainably anytime and anywhere regardless of solar illumination. The photocatalytic filter exhibited an excellent photocatalytic antibacterial effect likely due to recombination suppression of electrons and holes of ZnO/TiO(2) bilayer and wetting transition from hydrophilic to superhydrophilic state on the surface of the filter. Thanks to the kirigami pattern in both photocatalytic filter and UV-LEDs layer, full-face covering, breathability, flexibility, and the snug fit are believed to be improved. Although further in-depth studies are still needed and there is a long way to go, we expect our design idea on the facemask to be considered in various fields. Elsevier Ltd. 2022-06 2022-02-09 /pmc/articles/PMC8828298/ http://dx.doi.org/10.1016/j.mtsust.2022.100117 Text en © 2022 Elsevier Ltd. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.
spellingShingle Article
Nguyen, Uyen Nhat Trieu
Do, Khai Hoang
Jang, Bongkyun
Kim, Kyung-Shik
Kim, Jae-Hyun
Lee, Seung-Mo
Always-on photocatalytic antibacterial facemask with mini UV-LED array
title Always-on photocatalytic antibacterial facemask with mini UV-LED array
title_full Always-on photocatalytic antibacterial facemask with mini UV-LED array
title_fullStr Always-on photocatalytic antibacterial facemask with mini UV-LED array
title_full_unstemmed Always-on photocatalytic antibacterial facemask with mini UV-LED array
title_short Always-on photocatalytic antibacterial facemask with mini UV-LED array
title_sort always-on photocatalytic antibacterial facemask with mini uv-led array
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8828298/
http://dx.doi.org/10.1016/j.mtsust.2022.100117
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