Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
Volume 234, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotobiol.2022.112538
Keywords
SARS-CoV-2; Antimicrobial; ZnO; Silver; Multifunctional textiles
Categories
Funding
- CAPES [001]
- UFABC [48/2020-REIT (11.01)]
- University of Sao Paulo (USP)
- Faculdade de Medicina do ABC (FMABC)
- REVALORES
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Developing antimicrobial cotton fibers is crucial in preventing new global pandemics or the transmission of dangerous pathogens. Research has shown that cotton fabrics with Ag, ZnO, and Ag/ZnO nanoparticles exhibit bactericidal activity against bacteria, but their antiviral effectiveness against SARS-CoV-2 is limited.
Coronavirus Disease 2019 (COVID-19) occasioned global economic and health systems collapse. Also, it raised several concerns about using conventional cotton fabrics for manufacturing personal protective equipment without the antimicrobial capacity to inactivate viruses, such as Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) and its variants. Therefore, developing antimicrobial cotton fibers is crucial to avoid new global pandemics or the transmission of dangerous pathogens that remain on surfaces for long periods, especially in hospitals and medical clinics. Herein, we developed antimicrobial cotton fabrics with Ag, ZnO, and Ag/ZnO nanoparticles and evaluated their bactericidal activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), photocatalytic activity, and antiviral activity against Delta SARS-CoV-2. Although the antimicrobial fabrics are effective against these bacteria, they only reduce part of the SARS-CoV-2 virions during the first 15 min of direct contact via damage only to biological structures on the viral surface particle while the viral RNA remains intact.
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