高等学校化学学报 ›› 2012, Vol. 33 ›› Issue (08): 1860.doi: 10.3969/j.issn.0251-0790.2012.08.040

• 高分子化学 • 上一篇    下一篇

壳聚糖纳米银溶液的稳定性及在织物抗菌整理上的应用

张雨菲1, 李友良1, 姚远2, 李文宇1, 胡巧玲1   

  1. 1. 浙江大学生物医用大分子研究所, 教育部高分子合成与功能构造重点实验室, 杭州 310027;
    2. 合肥工业大学高分子材料与工程系, 合肥 230009
  • 收稿日期:2011-09-22 出版日期:2012-08-10 发布日期:2012-08-10
  • 通讯作者: 胡巧玲, 女, 博士, 教授, 主要从事天然生物医用高分子材料研究. E-mail: huql@zju.edu.cn E-mail:huql@zju.edu.cn
  • 基金资助:

    国家"九七三"计划项目(批准号: 2011CB606203, 2009CB930104); 中国博士后基金(批准号: 20100480085)和国家自然科学基金(批准号: 21104067)资助.

Stabiliby of Chitosan-stablized Nanosilver Solutions and Its Application for Antibacterial Durability of Cotton Fabrics

ZHANG Yu-Fei1, LI You-Liang1, YAO Yuan2, LI Wen-Yu1, HU Qiao-Ling1   

  1. 1. MOE Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China;
    2. Macromolecule Material and Engineering, Hefei University of Technology, Hefei 230009, China
  • Received:2011-09-22 Online:2012-08-10 Published:2012-08-10

摘要: 采用化学还原法在不同浓度的壳聚糖醋酸溶液中以硼氢化钠还原硝酸银, 制备了系列壳聚糖纳米银溶液; 考察了不同质量分数的壳聚糖溶液对纳米银的浓度、 形貌和粒径大小的影响及纳米银的稳定性. 采用紫外-可见吸收光谱、 原子吸收光谱和透射电子显微镜对所得溶液进行表征, 结果表明, 当有壳聚糖存在时, 纳米银以小于50 nm球形粒子稳定分布于壳聚糖溶液中. 随着壳聚糖质量分数的增大, 形成纳米银浓度减小, 但稳定性提高, 壳聚糖质量分数控制在0.5%~0.7%范围内, 可得到浓度较高且稳定性良好的纳米银. 在壳聚糖和纳米银的共同作用下织物具有极好的抗菌性和抗菌长效性.

关键词: 壳聚糖, 纳米银, 稳定性, 抗菌活性

Abstract: The chitosan-based nanosilver solutions were synthesized by chemical reduction method with chitosan as the stabilizing agent and sodium borohyride as the reducing agent. The obtained chitosan-stablized nanosilver solutions were characterized by ultraviolet-visible spectrophotometer, atomic absorption spectroscopy, and transmission electron microscope. The antibacterial activities of these chitosan-stablized nanosilver solutions toward E. coil and S. aureus were investigated. This research found that with increasing chitosan concentration, the obtained silver nanoparticles became much more stable. And cotton fabrics treated with these chitosan-stablized nanosilver solutions exhibited superior antibacterial activity and antibacterial durability compared with the fabrics treated by chitosan solution only.

Key words: Chitosan, Nanosilver, Stability, Antibacterial activity

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