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.
Original language | English |
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Pages (from-to) | 693-698 |
Number of pages | 6 |
Journal | Colloids and Surfaces B: Biointerfaces |
Volume | 111 |
DOIs | |
Publication status | Published (in print/issue) - 1 Nov 2013 |
Keywords
- Ag-silica nanotube
- Antibacterial
- Controlled wall-structure
- Electrospinning