Antibacterial silver-containing silica glass prepared by ion implantation.
Recently, there is much interest in nanocomposites consisting of metal nanoparticles dispersed in dielectric matrix. Silver is the first candidate used in antibacterial research. In the present study, sliver-containing silica glass is prepared by ion implantation. The bactericidal properties of Ag-implanted samples are investigated using E. coli. The implanted samples are characterized by optical absorption spectroscopy, atomic force microscopy and transmission electron microscopy. The size and position of the silver nanoparticles formed by ion implantation can be optimized by adjusting the implanted process parameters. All the implanted samples show antibacterial properties. But the samples with silver nanoparticle-enriched surfaces possess excellent antibacterial properties in comparison with other implanted samples. This indicates that ion implantation is a potential method for synthesizing antibacterial biomaterials.
Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education, Wuhan University, Wuhan 430072, China.
X H
XH
Xiao
W
W
Dong
W
W
Wu
T C
TC
Peng
X D
XD
Zhou
F
F
Ren
C Z
CZ
Jiang
D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects; D005898:Glass / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D012822:Silicon Dioxide / Q000737:chemistry*; D012834:Silver / Q000737:chemistry* / Q000494:pharmacology; D013053:Spectrophotometry
D000900:Anti-Bacterial Agents; D012834:Silver; D012822:Silicon Dioxide