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Attaching protein-adsorbing silica particles to the surface of cotton substrates for bioaerosol capture including SARS-CoV-2

Author

Listed:
  • Kieran Collings

    (University of Liverpool)

  • Cedric Boisdon

    (University of Liverpool)

  • Tung-Ting Sham

    (University of Liverpool)

  • Kevin Skinley

    (University of Liverpool)

  • Hyun-Kyung Oh

    (University of Liverpool)

  • Tessa Prince

    (University of Liverpool)

  • Adham Ahmed

    (University of Liverpool)

  • Shaun H. Pennington

    (Liverpool School of Tropical Medicine)

  • Philip J. Brownridge

    (University of Liverpool)

  • Thomas Edwards

    (Liverpool School of Tropical Medicine)

  • Giancarlo A. Biagini

    (Liverpool School of Tropical Medicine)

  • Claire E. Eyers

    (University of Liverpool)

  • Amanda Lamb

    (University of Liverpool
    Applied Health Insights Ltd)

  • Peter Myers

    (University of Liverpool)

  • Simon Maher

    (University of Liverpool)

Abstract

The novel coronavirus pandemic (COVID-19) has necessitated a global increase in the use of face masks to limit the airborne spread of the virus. The global demand for personal protective equipment has at times led to shortages of face masks for the public, therefore makeshift masks have become commonplace. The severe acute respiratory syndrome caused by coronavirus-2 (SARS-CoV-2) has a spherical particle size of ~97 nm. However, the airborne transmission of this virus requires the expulsion of droplets, typically ~0.6–500 µm in diameter (by coughing, sneezing, breathing, and talking). In this paper, we propose a face covering that has been designed to effectively capture SARS-CoV-2 whilst providing uncompromised comfort and breathability for the wearer. Herein, we describe a material approach that uses amorphous silica microspheres attached to cotton fibres to capture bioaerosols, including SARS CoV-2. This has been demonstrated for the capture of aerosolised proteins (cytochrome c, myoglobin, ubiquitin, bovine serum albumin) and aerosolised inactivated SARS CoV-2, showing average filtration efficiencies of ~93% with minimal impact on breathability.

Suggested Citation

  • Kieran Collings & Cedric Boisdon & Tung-Ting Sham & Kevin Skinley & Hyun-Kyung Oh & Tessa Prince & Adham Ahmed & Shaun H. Pennington & Philip J. Brownridge & Thomas Edwards & Giancarlo A. Biagini & Cl, 2023. "Attaching protein-adsorbing silica particles to the surface of cotton substrates for bioaerosol capture including SARS-CoV-2," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40696-x
    DOI: 10.1038/s41467-023-40696-x
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    References listed on IDEAS

    as
    1. Colin J. Worby & Hsiao-Han Chang, 2020. "Face mask use in the general population and optimal resource allocation during the COVID-19 pandemic," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
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