Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Colloids Surf B Biointerfaces. 2013 Nov 1;111:693-8. doi: 10.1016/j.colsurfb.2013.07.015. Epub 2013 Jul 12.

Ag-silica composite nanotube with controlled wall structures for biomedical applications.

Author information

  • 1State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China.
  • 2College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, PR China.
  • 3State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China. Electronic address: xiang.li@zju.edu.cn.

Abstract

A range of Ag-silica composite nanotubes with tailored wall structures were successfully synthesized in situ by single-nozzle electrospinning. By increasing AgNO3 concentration, the wall structure of Ag-silica tubes changes from dense to porous, and eventually turns into a 'lace-like' structure. This is attributed to Ag ions doping into the SiOSi network of precursors, as illustrated in FTIR study. More importantly, Ag-silica composite nanotubes show robust antibacterial activity against both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli microorganisms. Therefore, it is a breakthrough of the nanostructure biomaterial research for future medical applications that require strong antibacterial properties.

Copyright © 2013 Elsevier B.V. All rights reserved.

KEYWORDS:

Ag-silica nanotube; Antibacterial; Controlled wall-structure; Electrospinning

PMID:
23907057
[PubMed - in process]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk