Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5363853 | Applied Surface Science | 2013 | 6 Pages |
Using sodium tetraborate as electrolyte, a porous titania (TiO2) coating with a novel morphology of cortex-like slots was successfully prepared on the Ti surface through micro-arc oxidation (MAO). The effect of MAO treating time on surface layer was investigated. In this paper, we compared the cortex-like coatings with the conventional volcanic coatings. Results show that the cortex-like coatings with interconnected pores and slots have better wettability than volcanic coatings. The cell responses of TiO2 coatings, examined by culturing MG-63 cells on the samples, revealed that both cortex-like coating and volcanic coating presented good cell attachment after culturing for 1, 5 and 7 days, suggesting good biocompatibility. However, the cell growth of cortex-like coating occurred with cell ingrowth into the deep slots, which is different from that of the conventional volcanic coating. Results of this study indicated that the cortex-like coating was conducive to cell retention and implant stabilization.
Graphical abstractDownload full-size imageHighlights⺠A cortex-like slots TiO2 coating formed on Ti under micro-arc oxidation treatment. ⺠We have discussed evolution of morphology of TiO2 coatings. ⺠This TiO2 coating shows superior surface wettability. ⺠The cell growth of the cortex-like coating shows cell ingrowth into the deep slots.