负载铜纳米粒子碳纳米纤维膜的制备及其抗菌性能研究-中国材料进展

文章信息/Info

Title:: Preparation and Antibacterial Properties of Carbon Nanofiber Films Loaded with Cu Nanoparticles

Author(s):: ZHANG Liang Liang; LI Rui Tao; School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China

Keywords:: copper nanoparticles; solution jet spinning; carbonthernal shock; carbon nanofibers; antibiosis

摘要:: 铜纳米粒子（CuNPs）作为一种可以有效抑制多种微生物生长的抗菌材料，具有高效、廉价、低毒性等突出优势，其抗菌性与粒径和分散性息息相关。金属纳米粒子在使用过程中容易发生聚集，降低材料的抗菌性能。为了提高CuNPs的抗菌性能，先后利用溶液喷射纺丝、碳化及碳热冲击工艺制备了以聚丙烯腈基碳纳米纤维（CNFs）为载体、CuNPs为抗菌主体的复合抗菌材料（CuNPs/CNFs）。采用SEM、EDS、XRD等表征手段对CuNPs/CNFs复合材料的形貌与结构进行了分析，采用抑菌圈法、菌落计数法、SEM观察法等观察了CuNPs/CNFs复合材料对大肠杆菌和金黄色葡萄球菌的抑制效果。结果显示，CuNPs/CNFs复合材料对大肠杆菌和金黄色葡萄球菌展现出了较高的抗菌活性。

Abstract:: Copper nanoparticles (CuNPs), as antibacterial materials, can effectively inhibit the growth of various microorganisms. They have the advantages of high efficiency, low cost and low toxicity, and their antibacterial activity are closely related to their particle size and dispersion. Metal nanoparticles tend to aggregate during use, which reduces their antibacterial properties. To improve the antibacterial properties of CuNPs, an efficient and environmentally friendly antibacterial material (CuNPs/CNFs) with polyacrylonitrile based carbon nanofibers (CNFs) as the carrier and CuNPs as the main antibacterial agent was prepared by solution jet spinning, carbonization and carbothermal shock successively. The morphology and structure of CuNPs/CNFs composites were analyzed by SEM, EDS and XRD, and their inhibition effect on Escherichia coli and Staphylococcus aureus was observed by antibacterial zone method, colony counting method and SEM imaging. The results showed that CuNPs/CNFs composites exhibited high antibacterial activity against Escherichia coli and Staphylococcus aureus.