ABSTRACT

In this study, a novel micro-nano hierarchically structured fluoridated hydroxyapatite (FHAp) coating on AZ31B substrate was successfully synthesized via a simple one-step electrochemical deposition method. And the formulation of the electrodeposition solution is simple and environment-friendly without any harmful additives. The FHAp coating consists of a large amount of nanorods and some micro-structured spherical aggregates composed of nanorods. Electrochemical tests demonstrated that the FHAp coating exhibited higher anti-corrosion property and lower degradation rate than that of pure HAp coating. Moreover, the FHAp coating with micro-nano hierarchically structured surface displayed good cell biocompatibility. The addition of fluorine ion into HAp coating can further promote the cell adhesion and proliferation. This work provides a simple, environment-friendly, and efficient way to prepare FHAp coating on AZ31B alloy with improved corrosion resistance and biocompatibility.

摘要

在这项研究中，通过简单的一步电化学沉积方法成功地在 AZ31B 基底上合成了一种新型的微纳米分级结构氟化羟基磷灰石 (FHAp) 涂层。且电沉积液配方简单环保，不含任何有害添加剂。FHAp涂层由大量纳米棒和一些由纳米棒组成的微结构球形聚集体组成。电化学测试表明，与纯HAp涂层相比，FHAp涂层表现出更高的防腐性能和更低的降解率。此外，具有微纳米分级结构表面的 FHAp 涂层显示出良好的细胞生物相容性。在HAp涂层中加入氟离子可以进一步促进细胞粘附和增殖。这项工作提供了一个简单的、