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Journal of Nanomaterials
Volume 2009 (2009), Article ID 168041, 5 pages
Research Article

Antibacterial Properties of Nanosilver PLLA Fibrous Membranes

1Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon, Hong Kong
2Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong
3Department of Materials Engineering, AMPEL, The University of British Columbia, Vancouver, BC, Canada
4Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, Hong Kong

Received 15 October 2008; Revised 13 March 2009; Accepted 24 April 2009

Academic Editor: Alan K. T. Lau

Copyright © 2009 Lin Li 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.


Nanosilver has been studied as a valuable material for it strong antibacterial effects. In this study, we investigated the antibacterial properties of nano silver Poly-L-Lactic acid (Ag/PLLA) composite fibrous membranes. Ag/PLLA fibrous membranes were prepared with silver nanoparticles having weight ratio of silver nanoparticles to PLLA at 5% (w/w). In vitro antibacterial tests were performed using Escherichia coli (E. coli) and Staphylococcus aureus (Staph.) to determine the antibacterial capability of the Ag/PLLA fibrous membranes. As the results suggested, Ag/PLLA fibrous membranes showed strong antibacterial properties. Thus, Ag/PLLA fibrous membrane can be used as an antibacterial scaffold for tissue engineering.