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Chang L, Duan W, Chen A, Li J, Huang S, Tang H, Pan G, Deng Y, Zhao L, Li D, Zhao L. Preparation of polyacrylonitrile-based fibres with chelated Ag ions for antibacterial applications. ROYAL SOCIETY OPEN SCIENCE 2020; 7:200324. [PMID: 32874631 PMCID: PMC7428276 DOI: 10.1098/rsos.200324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 06/04/2020] [Indexed: 06/01/2023]
Abstract
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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Affiliation(s)
- Li Chang
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Wenjie Duan
- Institute of Chemistry, Henan Academy of Sciences, 450003 Zhengzhou, Henan, People's Republic of China
- School of Materials Science and Engineering, Zhengzhou University, 450000 Zhengzhou, Henan, People's Republic of China
| | - Anguo Chen
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Jianjun Li
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Siqi Huang
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Huijuan Tang
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Gen Pan
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Yong Deng
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Lining Zhao
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Defang Li
- Institute of Bast Fibre Crops, Chinese Academy of Agricultural Sciences, 410205 Changsha, Hunan, People's Republic of China
| | - Liang Zhao
- Institute of Chemistry, Henan Academy of Sciences, 450003 Zhengzhou, Henan, People's Republic of China
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Regulation of polar microenvironment on the surface of tertiary amines functionalized polyacrylonitrile fiber and its effect on catalytic activity in Knoevenagel condensation. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2018.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Zhou W, Yan X, Jiang M, Liu P, Xu J. Study of flame-resistant acrylic fibers reinforced by poly(vinyl alcohol). J Appl Polym Sci 2015. [DOI: 10.1002/app.43006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wanli Zhou
- State Key Laboratory of Polymer Materials and Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 China
| | - Xiang Yan
- State Key Laboratory of Polymer Materials and Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 China
| | - Mengjin Jiang
- State Key Laboratory of Polymer Materials and Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 China
| | - Pengqing Liu
- State Key Laboratory of Polymer Materials and Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 China
| | - Jianjun Xu
- State Key Laboratory of Polymer Materials and Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 China
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Lee KI, Li J, Fei B, Xin JH. Mechanism study of heat stabilization of polyacrylonitrile nanofibers against alkaline hydrolysis. Polym Degrad Stab 2014. [DOI: 10.1016/j.polymdegradstab.2014.03.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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