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载Ag/Cu纳米粒子多孔聚丙烯腈复合纤维膜的制备及其抑菌性

徐鹏 汪杨 王莎莎 戴伟 陈难难 李群

徐鹏, 汪杨, 王莎莎, 等. 载Ag/Cu纳米粒子多孔聚丙烯腈复合纤维膜的制备及其抑菌性[J]. 复合材料学报, 2023, 40(2): 836-843. doi: 10.13801/j.cnki.fhclxb.20220419.005
引用本文: 徐鹏, 汪杨, 王莎莎, 等. 载Ag/Cu纳米粒子多孔聚丙烯腈复合纤维膜的制备及其抑菌性[J]. 复合材料学报, 2023, 40(2): 836-843. doi: 10.13801/j.cnki.fhclxb.20220419.005
XU Peng, WANG Yang, WANG Shasha, et al. Preparation and antibacterial properties of porous polyacrylonitrile composite fiber membrane loaded with silver/copper nanoparticles[J]. Acta Materiae Compositae Sinica, 2023, 40(2): 836-843. doi: 10.13801/j.cnki.fhclxb.20220419.005
Citation: XU Peng, WANG Yang, WANG Shasha, et al. Preparation and antibacterial properties of porous polyacrylonitrile composite fiber membrane loaded with silver/copper nanoparticles[J]. Acta Materiae Compositae Sinica, 2023, 40(2): 836-843. doi: 10.13801/j.cnki.fhclxb.20220419.005

载Ag/Cu纳米粒子多孔聚丙烯腈复合纤维膜的制备及其抑菌性

doi: 10.13801/j.cnki.fhclxb.20220419.005
基金项目: 江苏省自然科学基金(BK20130969)Natural Science Foundation of Jiangsu Province (BK20130969)
详细信息
    通讯作者:

    徐鹏,博士,副教授,硕士生导师,研究方向为功能纳米材料的制备与应用 E-mail: xupeng@njfu.edu.cn

  • 中图分类号: TB331

Preparation and antibacterial properties of porous polyacrylonitrile composite fiber membrane loaded with silver/copper nanoparticles

  • 摘要: 金属纳米粒子因其独特的物理化学性能,在催化、抑菌、水污染处理和生物医学等领域表现出巨大的应用前景。但是金属纳米粒子在制备和使用过程中容易发生团聚而影响其性能。因此,提高金属纳米粒子的稳定性,对提升其应用性能具有重大意义。本文在以聚丙烯腈(PAN)为基体,聚乙烯吡咯烷酮(PVP)为致孔剂,基于静电纺丝技术制得多孔聚丙烯腈纳米纤维(PPAN NFs)的基础上,通过浸渍沉积法分别制备出负载银纳米粒子(Ag NPs)复合纳米纤维(Ag-PPAN NFs)和负载铜纳米粒子(Cu NPs)复合纳米纤维(Cu-PPAN NFs)。在利用FESEM、EDS、XRD等方法对制备纤维膜的形貌和结构进行表征的基础上,通过抑菌圈法和FESEM观察经复合纳米纤维处理前后的细菌形貌来研究Ag-PPAN NFs和Cu-PPAN NFs对大肠杆菌、金黄色葡萄球菌和白色念球菌的抑菌性能。研究结果发现:PPAN NFs可有效解决Ag NPs和Cu NPs在制备和使用过程中易于聚集的问题,制得的复合纳米纤维对大肠杆菌、金黄色葡萄球菌和白色念球菌具有一定的抗菌活性,可成为一种新型的抗菌纤维材料。

     

  • 图  1  纳米纤维的FESEM图像和直径分布图:((a), (d)) 多孔聚丙烯腈纳米纤维(PPAN NFs);((b), (e)) Ag-PPAN NFs;((c), (f)) Cu-PPAN NFs

    Figure  1.  FESEM images and diameter distribution of nanofibers: ((a), (d)) Porous polyacrylonitrile nanofibers (PPAN NFs); ((b), (e)) Ag-PPAN NFs; ((c), (f)) Cu-PPAN NFs

    图  2  复合纳米纤维的FESEM图像:(a) Ag-PPAN NFS;(b) Cu-PPAN NFs;纳米粒子(NPs)的粒径分布图:(c) Ag NPs;(d) Cu NPs

    Figure  2.  FESEM images of the nanofibers: (a) Ag-PPAN NFs; (b) Cu-PPAN NFs; Size distribution of the diameter of nanoparticles (NPs): (c) Ag NPs; (d) Cu NPs

    图  3  多孔复合纳米纤维的元素分布图和EDS元素分析图:((a)~(e)) Ag-PPAN NFs;((f)~(j)) Cu-PPAN NFs

    Figure  3.  Element distribution and EDS element analysis diagram of the porous nanofibers: ((a)-(e)) Ag-PPAN NFs; ((f)-(j)) Cu-PPAN NFs

    图  4  复合纳米纤维的元素分布图和EDS元素分析图:((a)~(e)) Ag-聚丙烯腈(PAN) NFs;((f)~(j)) Cu-PAN NFs

    Figure  4.  Element distribution and EDS element analysis diagram of the nanofibers: ((a)-(e)) Ag-polyacrylonitrile (PAN) NFs; ((f)-(j)) Cu-PAN NFs

    图  5  PPAN NFs、Ag-PPAN NFs和Cu-PPAN NFs的热重分析曲线

    Figure  5.  Thermogravimetric curves of PPAN NFs, Ag-PPAN NFs and Cu-PPAN NFs

    图  6  PAN NFs和PPAN NFs的N2吸附-脱附等温线(a)和孔径分布曲线(b)

    Figure  6.  N2 adsorption-desorption isotherm (a) and pore size distribution curves (b) of PAN NFs and PPAN NFs

    图  7  Ag-PPAN NFs (a)和Cu-PPAN NFs (b)的XRD图谱

    Figure  7.  XRD patterns of Ag-PPAN NFs (a) and Cu-PPAN NFs (b)

    图  8  PPAN NFs (a)、Ag-PPAN NFs (b)和Cu-PPAN NFs (c)的抗菌抑制区

    F1—E. coli; F2—S. aureus; F3—C. albicans

    Figure  8.  Antibacterial inhibition zone of PPAN NFs (a), Ag-PPAN NFs (b) and Cu-PPAN NFs (c)

    图  9  加入Ag-PPAN NFs和Cu-PPAN NFs前后细菌形貌变化图像

    Figure  9.  Changes in bacterial morphology before and after adding Ag-PPAN NFs and Cu-PPAN NFs

    表  1  多孔复合纳米纤维的抗菌抑制区直径

    Table  1.   Diameter of antibacterial inhibition zone of the porous composite nanofibers


    Samples

    Number
    E. coli/
    mm
    C. albicans/
    mm
    S. aureus/
    mm
    Ag-PPAN
    NFs (1)
    113.514.513.5
    Ag-PPAN
    NFs (2)
    214.515.014.0
    Ag-PPAN
    NFs (3)
    315.016.014.0
    Cu-PPAN
    NFs (1)
    4Not obviousNot obvious12.0
    Cu-PPAN
    NFs (2)
    5Not obviousNot obvious19.0
    Cu-PPAN
    NFs (3)
    6Not obviousNot obvious20.0
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出版历程
  • 收稿日期:  2022-01-07
  • 修回日期:  2022-03-19
  • 录用日期:  2022-04-04
  • 网络出版日期:  2022-04-20
  • 刊出日期:  2023-02-15

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