Effects of electrical parameters on physical and chemical properties and cellular compatibility of micro-arc oxidation coat on titanium(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2018年第11期
- Page:
- 1334-1338
- Research Field:
- 医学生物物理
- Publishing date:
Info
- Title:
- Effects of electrical parameters on physical and chemical properties and cellular compatibility of micro-arc oxidation coat on titanium
- Author(s):
- XU Fengyuan; LI Dechao; SUN Liangqing; LI Muqin
- Key Biomedical Materials Laboratory of Colleges and Universities in Heilongjiang Province, Jiamusi University, Jiamusi 154007, China
- Keywords:
- ; Keywords: titanium; micro-arc oxidation; pulse width; pulse frequency; cellular compatibility
- PACS:
- R318；TB34
- DOI:
- DOI:10.3969/j.issn.1005-202X.2018.11.018
- Abstract:
- Abstract: Objective To study the effects of pure titanium micro-arc oxidation parameters (pulse width and pulse frequency) on film surface morphology, physical and chemical properties and biocompatibility of osteoblasts. Methods The sandblasted and acid-etched titanium plate was treated with micro-arc oxidation. The surface morphology, friction property and corrosion resistance of the film layer were studied by changing the pulse width and frequency of micro-arc oxidation, thus obtaining the parameters corresponding to different surface topography. The pulse frequency and width of micro-arc oxidation were 400 Hz and 60 μs in group A, 500 Hz and 60 μs in group B, and 500 Hz and 75 μs in group C. The corrosion resistance of the micro-arc oxidation film and the adhesion, proliferation and cell morphology of the osteoblasts on the surface were further analyzed. Results Under electron microscope, rough and poriferous film layers were observed on the surface of 3 groups of specimens, and the surface roughness of pure titanium micro-arc oxidation film in group A was the highest. The corrosion resistance and wear resistance of the micro-arc oxidation film in group C were better than those of the micro-arc oxidation film in group A and B. The experiment of cell adhesion and proliferation showed that the differences among groups A, B and C were statistically significant (P<0.05), and the adhesion and proliferation of osteoblasts in group A were better than those of osteoblasts in group B and C. Conclusion Pulse width and frequency have affects on the surface biological activity and the physical and chemical properties of micro-arc oxidation film layer. With the pulse frequency of 400 Hz and the pulse width of 60 μs, the cells on the surface of the film layer grow best.
Last Update: 2018-11-22