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UVC LED and conducting yarn-based heater for a smart germicidal face mask to protect against airborne viruses

Pattanaik, P; Holderbaum, W; Khandual, A; Tripathy, HP

UVC LED and conducting yarn-based heater for a smart germicidal face mask to protect against airborne viruses Thumbnail


Authors

P Pattanaik

A Khandual

HP Tripathy



Contributors

C Ungureanu
Editor

Abstract

“Wear a mask. Save lives” is the slogan of WHO and all the government agencies over the world to the public. One of the most adopted prevention measures that can limit the spread of the airborne virus in the form of respiratory viral diseases, including the new strain of COVID-19, is wearing a proper mask. If the mask surface is heated to 65 to 70 °C, it could help potentially diminish any viruses or bacteria accumulated. The FAR-Ultraviolet -C (FAR-UV-C) dose for the influenza limit to 254 nm light is ~3 mJ/cm2/hour exposure is not harmful to the human skin and eyes. Here, we propose an intelligent mask served by FAR-UV-C and conducting a yarn-based heater that could potentially be activated in a controlled manner to kill the virus. The effective irradiation intensity for skin application would be under 0.1 µW/cm2. The exposure risk of UV-C is technically prevented by fabricating multi-layered fabrics with multiple functionalities. Along with experimental validation on bacterial filtration efficiency (BFE), tinker cad simulation for circuit design, and comsol multiphysics for temperature profile study, we probed Moisture Management Test (MMT) in addition with cytotoxicity risk by MTT Assay for survivability to ensure safer application potential. This novel proposed design with the germicidal combination of heating and FAR-UV-C models, described here, is promising in retaliating and combating any airborne viruses.

Citation

Pattanaik, P., Holderbaum, W., Khandual, A., & Tripathy, H. (2021). UVC LED and conducting yarn-based heater for a smart germicidal face mask to protect against airborne viruses. Materials, 14(22), 6999. https://doi.org/10.3390/ma14226999

Journal Article Type Article
Acceptance Date Nov 10, 2021
Publication Date Nov 18, 2021
Deposit Date Dec 17, 2021
Publicly Available Date Dec 17, 2021
Journal Materials
Publisher MDPI
Volume 14
Issue 22
Pages 6999
DOI https://doi.org/10.3390/ma14226999
Publisher URL https://doi.org/10.3390/ma14226999
Related Public URLs http://www.mdpi.com/journal/materials