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Development of a novel silver ions-nanosilver complementary composite as antimicrobial additive for powder coating

Applying silver into coatings has become a prevalent method in fabricating antimicrobial surfaces. However, the concerns about durability always exist and limit its applications. Here, a highly inhibitory, active, durable, and easy-to-use silver ions-nanosilver antimicrobial additive for powder coat...

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Autores principales: Cui, Jixing, Shao, Yuanyuan, Zhang, Haiping, Zhang, Hui, Zhu, Jesse
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier B.V. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7644439/
https://www.ncbi.nlm.nih.gov/pubmed/33173406
http://dx.doi.org/10.1016/j.cej.2020.127633
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author Cui, Jixing
Shao, Yuanyuan
Zhang, Haiping
Zhang, Hui
Zhu, Jesse
author_facet Cui, Jixing
Shao, Yuanyuan
Zhang, Haiping
Zhang, Hui
Zhu, Jesse
author_sort Cui, Jixing
collection PubMed
description Applying silver into coatings has become a prevalent method in fabricating antimicrobial surfaces. However, the concerns about durability always exist and limit its applications. Here, a highly inhibitory, active, durable, and easy-to-use silver ions-nanosilver antimicrobial additive for powder coatings was fabricated in this study. Silver nanoparticles were chemically bonded to the Ag, Cu, and Zn-ternary ion-exchanged zeolite by [Formula: see text]-lipoic acid, which was then encapsulated by hydrophilic polymers. The fabricated silver ions and silver nanoparticles (Ag(+)-AgNPs) complementary structure provides a synergistic effect. Ag(+) is the main antimicrobial agent, while AgNPs act as a supplementary reservoir of Ag(+). As well, the formed thin layer of silver nanoparticles and hydrophilic film prolongs the release of active Ag(+) from zeolite, and Ag(+) facilitates the activation of AgNPs. The results show that this additive indicates excellent antimicrobial activity to E. coli, S. aureus, P. aeruginosa, and C. albicans, and that the coatings with the additive exhibit over 99.99% reduction rate for the tested bacteria and fungi. The coating film is able to maintain over 99% antimicrobial reduction even after 1200 repeated solution wipings, or over 30 wash cycles of artificial sweat solution, indicating high durability. Furthermore, the yellowness of the coating is not evident (Δb < 2) despite the high loading of silver, and the silver nanoparticles have little impact on gloss, haze, and distinctness of the coating film image.
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spelling pubmed-76444392020-11-06 Development of a novel silver ions-nanosilver complementary composite as antimicrobial additive for powder coating Cui, Jixing Shao, Yuanyuan Zhang, Haiping Zhang, Hui Zhu, Jesse Chem Eng J Article Applying silver into coatings has become a prevalent method in fabricating antimicrobial surfaces. However, the concerns about durability always exist and limit its applications. Here, a highly inhibitory, active, durable, and easy-to-use silver ions-nanosilver antimicrobial additive for powder coatings was fabricated in this study. Silver nanoparticles were chemically bonded to the Ag, Cu, and Zn-ternary ion-exchanged zeolite by [Formula: see text]-lipoic acid, which was then encapsulated by hydrophilic polymers. The fabricated silver ions and silver nanoparticles (Ag(+)-AgNPs) complementary structure provides a synergistic effect. Ag(+) is the main antimicrobial agent, while AgNPs act as a supplementary reservoir of Ag(+). As well, the formed thin layer of silver nanoparticles and hydrophilic film prolongs the release of active Ag(+) from zeolite, and Ag(+) facilitates the activation of AgNPs. The results show that this additive indicates excellent antimicrobial activity to E. coli, S. aureus, P. aeruginosa, and C. albicans, and that the coatings with the additive exhibit over 99.99% reduction rate for the tested bacteria and fungi. The coating film is able to maintain over 99% antimicrobial reduction even after 1200 repeated solution wipings, or over 30 wash cycles of artificial sweat solution, indicating high durability. Furthermore, the yellowness of the coating is not evident (Δb < 2) despite the high loading of silver, and the silver nanoparticles have little impact on gloss, haze, and distinctness of the coating film image. Elsevier B.V. 2021-09-15 2020-11-06 /pmc/articles/PMC7644439/ /pubmed/33173406 http://dx.doi.org/10.1016/j.cej.2020.127633 Text en © 2020 Elsevier B.V. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.
spellingShingle Article
Cui, Jixing
Shao, Yuanyuan
Zhang, Haiping
Zhang, Hui
Zhu, Jesse
Development of a novel silver ions-nanosilver complementary composite as antimicrobial additive for powder coating
title Development of a novel silver ions-nanosilver complementary composite as antimicrobial additive for powder coating
title_full Development of a novel silver ions-nanosilver complementary composite as antimicrobial additive for powder coating
title_fullStr Development of a novel silver ions-nanosilver complementary composite as antimicrobial additive for powder coating
title_full_unstemmed Development of a novel silver ions-nanosilver complementary composite as antimicrobial additive for powder coating
title_short Development of a novel silver ions-nanosilver complementary composite as antimicrobial additive for powder coating
title_sort development of a novel silver ions-nanosilver complementary composite as antimicrobial additive for powder coating
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7644439/
https://www.ncbi.nlm.nih.gov/pubmed/33173406
http://dx.doi.org/10.1016/j.cej.2020.127633
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