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Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications

The need for an excellent antibacterial material that is sufficiently powerful to never develop bacterial resistance is urgent. In this study, a series of novel polyacrylonitrile-based fibres with chelated Ag ions (referred to as Ag-SH-PANF) were prepared by a two-step chemical modification process:...

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Autores principales: Chang, Li, Duan, Wenjie, Chen, Anguo, Li, Jianjun, Huang, Siqi, Tang, Huijuan, Pan, Gen, Deng, Yong, Zhao, Lining, Li, Defang, Zhao, Liang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7428276/
https://www.ncbi.nlm.nih.gov/pubmed/32874631
http://dx.doi.org/10.1098/rsos.200324
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author Chang, Li
Duan, Wenjie
Chen, Anguo
Li, Jianjun
Huang, Siqi
Tang, Huijuan
Pan, Gen
Deng, Yong
Zhao, Lining
Li, Defang
Zhao, Liang
author_facet Chang, Li
Duan, Wenjie
Chen, Anguo
Li, Jianjun
Huang, Siqi
Tang, Huijuan
Pan, Gen
Deng, Yong
Zhao, Lining
Li, Defang
Zhao, Liang
author_sort Chang, Li
collection PubMed
description The need for an excellent antibacterial material that is sufficiently powerful to never develop bacterial resistance is urgent. In this study, a series of novel polyacrylonitrile-based fibres with chelated Ag ions (referred to as Ag-SH-PANF) were prepared by a two-step chemical modification process: grafting and chelating. The properties of the as-prepared Ag-SH-PANF were characterized by Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The antibacterial activities of Ag-SH-PANF were examined against pathogenic bacteria, and an antibacterial mechanism was explicated based on the release of Ag ions from the fibres' surfaces. The results showed that, although chelation occurred between the Ag ions and the grafted amino, sulfhydryl and disulfide groups, Ag-SH-PANF retained its fine microstructure and thermal stability. Moreover, Ag-SH-PANF displayed excellent antibacterial ability against pathogenic bacteria as well as good washing durability. In terms of the antibacterial mechanism, Ag ions are the main bactericidal agents in the role of catalysts and are not consumed in the antibacterial process. Nonetheless, a relatively higher concentration of Ag ions can accelerate the bactericidal process.
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spelling pubmed-74282762020-08-31 Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications Chang, Li Duan, Wenjie Chen, Anguo Li, Jianjun Huang, Siqi Tang, Huijuan Pan, Gen Deng, Yong Zhao, Lining Li, Defang Zhao, Liang R Soc Open Sci Chemistry The need for an excellent antibacterial material that is sufficiently powerful to never develop bacterial resistance is urgent. In this study, a series of novel polyacrylonitrile-based fibres with chelated Ag ions (referred to as Ag-SH-PANF) were prepared by a two-step chemical modification process: grafting and chelating. The properties of the as-prepared Ag-SH-PANF were characterized by Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The antibacterial activities of Ag-SH-PANF were examined against pathogenic bacteria, and an antibacterial mechanism was explicated based on the release of Ag ions from the fibres' surfaces. The results showed that, although chelation occurred between the Ag ions and the grafted amino, sulfhydryl and disulfide groups, Ag-SH-PANF retained its fine microstructure and thermal stability. Moreover, Ag-SH-PANF displayed excellent antibacterial ability against pathogenic bacteria as well as good washing durability. In terms of the antibacterial mechanism, Ag ions are the main bactericidal agents in the role of catalysts and are not consumed in the antibacterial process. Nonetheless, a relatively higher concentration of Ag ions can accelerate the bactericidal process. The Royal Society 2020-07-08 /pmc/articles/PMC7428276/ /pubmed/32874631 http://dx.doi.org/10.1098/rsos.200324 Text en © 2020 The Authors. http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
spellingShingle Chemistry
Chang, Li
Duan, Wenjie
Chen, Anguo
Li, Jianjun
Huang, Siqi
Tang, Huijuan
Pan, Gen
Deng, Yong
Zhao, Lining
Li, Defang
Zhao, Liang
Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications
title Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications
title_full Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications
title_fullStr Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications
title_full_unstemmed Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications
title_short Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications
title_sort preparation of polyacrylonitrile-based fibres with chelated ag ions for antibacterial applications
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7428276/
https://www.ncbi.nlm.nih.gov/pubmed/32874631
http://dx.doi.org/10.1098/rsos.200324
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