Study on antibacterial ability of silver nanoparticles loaded titanium nanotubes
10.11958/j.issn.0253-9896.2015.05.020
- VernacularTitle:载纳米银二氧化钛纳米管抑菌能力研究
- Author:
Jingwen MIAO
;
Xu ZHANG
;
Wenyi ZHANG
;
Yingchun SUN
;
Shiqing MA
;
Ping GAO
- Publication Type:Journal Article
- Keywords:
nanotubes;
titanium;
silver;
nanostructures;
microbial sensitivity tests;
bacterial adhesion
- From:
Tianjin Medical Journal
2015;43(5):522-525,580
- CountryChina
- Language:Chinese
-
Abstract:
Objective To detect the inhibitory effect of siliver nanoparticles loaded titanium nanotubes on staphylococcus aureus, and provide a theoretical basis for implant local application. Methods Orderly arrangement of titania nanotubes produced by anodic oxidation, loaded silver nanoparticals by situ replacement. Scanning electron microscopy (SEM) and transmission electron microscopy(TEM) were used to detect the morphology topology of silver nanoparticals, titanium nanotubes and siliver particals loaded titanium nanotubes. The minimum inhibitory concentration of silver nanoparticles was calculated. The antibacterial of planktonic bacteria was detected 1 day, 3 days and 5 days after culturing staphylococcus aureus on siliver particals loaded titanium nanotubes. The inhibitory bacterial adhesion properties were detected by scanning electron microscopy. Results The uniform and orderly diameter of 80～120 nm TiO2 nanotubes were prepared under 18 V voltage, loaded diameter of 20 nm silver nanoparticals, which effectively inhibited adhesion and proliferation of staphylococcus aureus. Conclusion Titanium nanotubes produced by 18 V have a stronger drug loading capacity. The 100 mmol/L silver nanopartical solution loaded nanotubes can effectively inhibit staphylococcus aureus adhesion and proliferation within three days.
