Cotton Fabrics Decorated with Antimicrobial Ag-Coated TiO2 Nanoparticles Are Unable to Fully and Rapidly Eradicate SARS-CoV-2

Daniel J da Silva; Alana G Souza; Greiciele da S Ferreira; Adriana Duran; Aline D Cabral; Fernando L A Fonseca; Rodrigo F Bueno; Derval S Rosa

doi:10.1021/acsanm.1c03492

Cotton Fabrics Decorated with Antimicrobial Ag-Coated TiO₂ Nanoparticles Are Unable to Fully and Rapidly Eradicate SARS-CoV-2

ACS Appl Nano Mater. 2021 Dec 6;4(12):12949-12956. doi: 10.1021/acsanm.1c03492. eCollection 2021 Dec 24.

Authors

Daniel J da Silva¹, Alana G Souza¹, Greiciele da S Ferreira¹, Adriana Duran¹, Aline D Cabral¹, Fernando L A Fonseca², Rodrigo F Bueno^{1

3}, Derval S Rosa¹

Affiliations

¹ Center for Engineering, Modeling, and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, São Paulo 09210-210, Brazil.
² Faculty of Medicine of ABC (FMABC), Department of Clinical Analysis, Santo André, São Paulo 09060-870, Brazil.
³ Coordinator of the COVID-19 Monitoring in Wastewater Network, National Water and Basic Sanitation Agency, Ministry of Science, Technology and Innovation, and Ministry of Health, Brasilia, Distrito Federal 70067-900, Brazil.

PMID: 37556280
DOI: 10.1021/acsanm.1c03492

Abstract

The successful development of multifunctional cotton fabrics with antimicrobial and antiviral activities is essential to prevent the proliferation of microorganisms and transmission of coronavirus virions today, especially with the emergence of new variants of SARS-CoV-2. In this work, we developed antimicrobial cotton fabrics with Ag/TiO₂ nanoparticles synthesized via sonochemistry. Here, we show that more than 50% of infectious SARS-CoV-2 remain active after prolonged direct contact self-disinfecting materials capable of inhibiting the proliferation of Escherichia coli and Staphylococcus aureus. The findings bring several epidemiologic worries about using silver and TiO₂ as self-disinfecting nanostructured agents to prevent coronavirus transmission.