Journal
MATERIALS TODAY COMMUNICATIONS
Volume 33, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.mtcomm.2022.104288
Keywords
SARS-CoV-2; Antimicrobial; COVID-19; Cotton; Silver
Categories
Funding
- CAPES [001]
- UFABC [48/2020 -REIT (11.01)]
- REVALORES
- UFABC
- University of Sao Paulo (USP)
- Faculty of Medicine of ABC (FMABC)
- Multiuser Central Facilities (UFABC)
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Developing cotton fibers with high self-disinfecting ability is crucial in order to prevent new pandemics caused by new variants of SARS-CoV-2. Researchers have developed cotton wipes coated with Ag, TiO2, and Ag/TiO2 hybrid nanoparticles using a sonochemical approach. These coated wipes exhibit strong antimicrobial performance against various pathogens and can effectively inactivate infectious SARS-CoV-2 (Delta variant).
The current pandemic of Coronavirus Disease 2019 (COVID-19) raised several concerns about using conventional textiles for manufacturing personal protective equipment without self-disinfecting properties since the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is transmitted mainly by aerosols that can transpose cotton masks. Therefore, developing new cotton fibers with high self-disinfecting ability is essential to avoid a new pandemic due to new SARS-CoV-2 variants. Herein, we developed cotton wipes (CFs) with fibers coated by Ag, TiO2, and Ag/TiO2 hybrid nanoparticles like Brazilian heavy-fruited Myrciaria cauliflora by a sonochemical approach. Moreover, the coated CFs present high antimicrobial performance against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), being able to inactivate infectious SARS-CoV-2 (Delta variant) by the destruction of the spike, membrane, and nucleocapsid proteins while the viral RNA is not significantly affected, according to the molecular biological findings.
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