Water-Mediated In Situ Fabrication of CuI Nanoparticles on Flexible Cotton Fabrics as a Sustainable and Skin-Compatible Coating with Broad-Spectrum Antimicrobial Efficacy

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Water-Mediated In Situ Fabrication of CuI Nanoparticles on Flexible Cotton Fabrics as a Sustainable and Skin-Compatible Coating with Broad-Spectrum Antimicrobial Efficacy
Title:
Water-Mediated In Situ Fabrication of CuI Nanoparticles on Flexible Cotton Fabrics as a Sustainable and Skin-Compatible Coating with Broad-Spectrum Antimicrobial Efficacy
Journal Title:
ACS Applied Nano Materials
Keywords:
Publication Date:
07 July 2023
Citation:
Chen, A. X., Lau, H. Y., Teo, J. Y., Wang, Y., Choong, D. Z. Y., Wang, Y., Luo, H.-K., Yang, Y. Y., & Li, N. (2023). Water-Mediated In Situ Fabrication of CuI Nanoparticles on Flexible Cotton Fabrics as a Sustainable and Skin-Compatible Coating with Broad-Spectrum Antimicrobial Efficacy. ACS Applied Nano Materials, 6(14), 13238–13249. https://doi.org/10.1021/acsanm.3c01961
Abstract:
Infectious pathogens, such as SARS-CoV-2, can remain viable on common fabric surfaces for days, posing a significant risk of fomite transmission. Antimicrobial coatings are a widely employed approach for pathogen eradication upon direct contact. However, fabricating such coatings on fabric substrates mostly necessitates toxic organic solvents and complex equipment/procedures. Most coatings also require a long contact time for complete disinfection, which may compromise their usefulness in mitigating the spread of highly infectious pathogens. Herein, we report a sustainable and scalable water-mediated method to prepare a copper iodide (CuI) coating on flexible cotton fabrics, attaining highly potent antimicrobial efficacy and rapid germicidal kinetics. Only water is required as the processing solvent for the in situ formation of CuI nanoparticles on the substrate, and the unconsumed reagents can be fully recycled, making the reported method a green, economical, and zero-waste technology promising for industrial scale-up. Within just 2 min of contact, the coated cotton fabric containing 5.1 wt % CuI nanoparticles exhibits near-complete inactivation of murine hepatitis coronavirus (>99.9%) and Salmonella bacteriophage P22 (>99.9999%) as models for the enveloped and nonenveloped viral species, respectively. It is also able to eliminate a variety of bacteria and fungi with 3.5–7.4 log reductions in 2–5 min. Furthermore, in view of the robust durability and skin compatibility of the coating, this simple yet powerful approach holds great promise for practical applications, especially in future infectious disease outbreaks.
License type:
Publisher Copyright
Funding Info:
This research / project is supported by the A*STAR - AME Young Individual Research Grant
Grant Reference no. : A2084c0174
Description:
This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Nano Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see doi.org/10.1021/acsanm.3c01961
ISSN:
2574-0970
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