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Functionalized non-woven surfaces for combating the spread of the COVID-19 pandemic

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journal contribution
posted on 2022-01-01, 00:00 authored by N Avinash Patil, Prakash Macchindra Gore, D Shanmugrajan, H Patil, M Kudav, B Kandasubramanian
The worldwide outbreak of SARS-CoV-2 infection has necessitated mandatory use of face masks, personal protective equipment and intake of a healthy diet for immunity boosting. As per WHO's recommendation, continuous use of masks has been proven effective in decreasing the SARS-CoV-2 infection rate. The present study reports on the bacterial filtration efficacy (BFE) of a novel 4-ply functionalized non-woven face mask. We synthesized a polypropylene-based fabric with inner layers of melt-blown fine fibres coated with polylactic acid and immune-boosting herbal phytochemicals. Experimental studies on the synthesized face mask demonstrated a BFE of greater than 99% against
Staphylococcus aureus
(a bacterium species frequently found in mammalian respiratory tract). A thorough computational analysis using LibDock algorithm demonstrated an effective docking performance of herbal phytochemicals against harmful virus structures. More importantly, the face mask also showed sufficient and stable breathability as per regulatory standards. A breathing resistance of 30 Pa at an aerosol flow rate of 30 l h
−1
was reported under standard temperature and pressure conditions, indicating a high potential for real-world applications.

History

Journal

Interface Focus

Volume

12

Issue

1

Article number

20210040

Pagination

1 - 10

Publisher

The Royal Society Publishing

Location

London, Eng.

ISSN

2042-8898

eISSN

2042-8901

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal