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Published on: January 17, 2017
[Preparation and antibacterial properties of nano-TiO(2-x)N(x) film]
Na Li1, Baocheng Cao, Yuhua Wang
1College of Stomatology, Lanzhou University, Lanzhou 730000, China. yxln06@yahoo.com.cn
Objective:
To prepare a nano-TiO₂ film and characterize its antibacterial properties for dental application.
Methods:
The TiO(2-x)N(x) antibacterial film was prepared by radio frequency (RF) magnetron sputtering. The crystal structure and surface morphology of the film were characterized by X-ray diffraction, scanning electron microscopy, and EDS, and the antibacterial properties of the film against common dental pathogenic bacteria were evaluated.
Results:
The TiO(2-x)N(x) antibacterial film presented with an anatase phase with a mass ratio of nitrogen of 0.13% and compact and smooth surface. Antibacterial assay of the film showed a resistance rate of 97.79% against Streptococcus mutans, 49.42% against Actinomyces viscosus, and 96.84% against Candida albicans.
Conclusion:
The nano-TiO(2-x)N(x) film shows strong antibacterial effects against common dental pathogenic bacteria and can be used as a novel antibacterial dental material.
