Dalili Faezeh, Aghdam Rouhollah Mehdinavaz, Soltani Reza, Saremi Mohsen
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box: 11155-4563, Tehran, Iran.
J Mater Sci Mater Med. 2022 Mar 26;33(4):34. doi: 10.1007/s10856-022-06655-6.
Hydroxyapatite-carbon nanotubes (HA-CNTs) nanocomposite coating was applied by electrophoretic method on anodized Ti alloy to investigate its stability in simulated body fluid (SBF). The biocoating was characterized by using scanning electron microscope (SEM) for microstructure, X-ray diffraction (XRD) for crystallography. The effect of CNTs concentration on the coating properties was also investigated and found out that CNTs up to 5% has various improving effect on the system. It increased corrosion resistance and adhesion of the coating to the substrate and decreased the number of cracks on the coating. The results of the in vitro test showed that the cell viability increased with increasing the concentration of CNTs to 3 wt.% CNTs. Graphical abstract.
采用电泳法在阳极氧化钛合金上制备了羟基磷灰石-碳纳米管（HA-CNTs）纳米复合涂层，以研究其在模拟体液（SBF）中的稳定性。通过扫描电子显微镜（SEM）对生物涂层的微观结构进行表征，利用X射线衍射（XRD）对其晶体结构进行分析。还研究了碳纳米管浓度对涂层性能的影响，发现碳纳米管含量高达5%时对体系有多种改善作用。它提高了涂层的耐腐蚀性和与基体的附着力，并减少了涂层上的裂纹数量。体外测试结果表明，随着碳纳米管浓度增加至3 wt.%，细胞活力增强。图形摘要。
