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Journal of Nanomaterials
Volume 2014 (2014), Article ID 684251, 10 pages
http://dx.doi.org/10.1155/2014/684251
Research Article

Synthesis and Antibacterial Testing of Silver/Poly (Ether Amide) Composite Nanofibers with Ultralow Silver Content

1Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, China
2Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, China
3State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
4Changzhou Yingzhong Nano Technology Company Limited, Changzhou 213023, China

Received 1 April 2014; Revised 17 July 2014; Accepted 17 July 2014; Published 11 August 2014

Academic Editor: Tianxi Liu

Copyright © 2014 Shuai Liang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Antimicrobial materials have attracted much attention all over the world. Herein, a new kind of antimicrobial material, poly (ether amide) (Pebax) nanofibers containing Ag nanoparticles, was prepared by electrospinning method. The Ag/Pebax composites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), and thermogravimetric analyzer (TGA) measurements. The antimicrobial properties of Ag/Pebax composites against Escherichia coli (E. coli; ATCC25922 and avirulent) and Staphylococcus aureus (S. aureus; ATCC6538 and avirulent) were evaluated by membrane adhering method. It was found that the Ag content played an important part in the antimicrobial ability of Ag/Pebax composites. When the mass ratio of AgNO3 to Pebax in the precursor was 0.15, the inhibition rate can reach >99.9% and antimicrobial activity against E. coli and S. aureus was 5.8 and 5.6, respectively, exceeding the antimicrobial testing standards JIS Z 2801. The above results indicated that the Ag/Pebax composite was a promising antimicrobial material that can be used in many applications.