Piao Zhonglie, Qiu Jijun, Wu Yongqing, Park Se-Jeong, He Weizhen, Timur A, Ryu Su-Chak, Kim Hyung-Kook, Hwang Yoon-Hwae
Department of Nano Materials Engineering and BK 21 Nano Fusion Technology Division, Pusan National University, Miryang 627-706, Korea.
J Nanosci Nanotechnol. 2011 Jan;11(1):286-90. doi: 10.1166/jnn.2011.3270.
We studied the effect of nano-tubular anodic TiO2 buffer layers on hydroxyapatite (HA) coating. The pulsed laser deposition (PLD) method was used to deposit HA on a well arranged nano-tubular anodic TiO2 (NT-ATO) buffer layer prepared by an electrochemical anodization technique. The surface morphology and chemical composition of HA coatings were characterized by using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and contact angle measurement. We found that crystalline HA coatings show well arranged porous morphologies with a favorable surface wettability. We also found that an anodic nano-tubular TiO2 buffer layer with a relatively short tube length shows a better coating morphology. The deposition process of HA on the nanotubular TiO2 buffer layer was also proposed.
我们研究了纳米管状阳极二氧化钛缓冲层对羟基磷灰石（HA）涂层的影响。采用脉冲激光沉积（PLD）法在通过电化学阳极氧化技术制备的排列良好的纳米管状阳极二氧化钛（NT-ATO）缓冲层上沉积HA。利用扫描电子显微镜（SEM）、能量色散X射线光谱仪（EDS）、X射线衍射（XRD）和接触角测量对HA涂层的表面形貌和化学成分进行了表征。我们发现结晶HA涂层呈现出排列良好的多孔形貌，具有良好的表面润湿性。我们还发现，管长相对较短的阳极纳米管状二氧化钛缓冲层表现出更好的涂层形貌。此外，还提出了HA在纳米管状二氧化钛缓冲层上的沉积过程。
