iScience (Jul 2021)

Graphene nanoplatelet and graphene oxide functionalization of face mask materials inhibits infectivity of trapped SARS-CoV-2

  • Flavio De Maio,
  • Valentina Palmieri,
  • Gabriele Babini,
  • Alberto Augello,
  • Ivana Palucci,
  • Giordano Perini,
  • Alessandro Salustri,
  • Patricia Spilman,
  • Marco De Spirito,
  • Maurizio Sanguinetti,
  • Giovanni Delogu,
  • Laura Giorgia Rizzi,
  • Giulio Cesareo,
  • Patrick Soon-Shiong,
  • Michela Sali,
  • Massimiliano Papi

Journal volume & issue
Vol. 24, no. 7
p. 102788

Abstract

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Summary: Recent advancements in bidimensional nanoparticles production such as graphene (G) and graphene oxide (GO) have the potential to meet the need for highly functional personal protective equipment (PPE) against SARS-CoV-2 infection. The ability of G and GO to interact with microorganisms provides an opportunity to develop engineered textiles for use in PPE and limit the spread of COVID-19. PPE in current use in high-risk settings for COVID transmission provides only a physical barrier that decreases infection likelihood and does not inactivate the virus. Here, we show that virus pre-incubation with soluble GO inhibits SARS-CoV-2 infection of VERO cells. Furthermore, when G/GO-functionalized polyurethane or cotton was in contact SARS-CoV-2, the infectivity of the fabric was nearly completely inhibited. The findings presented here constitute an important innovative nanomaterial-based strategy to significantly increase PPE efficacy in protection against the SARS-CoV-2 virus that may implement water filtration, air purification, and diagnostics methods.

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