Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Hubei Engineering Research Centre for Biomaterials and Medical Protective Materials, Huazhong University of Science and Technology, Wuhan 430074, China.
Wuhan Third Hospital, Tongren Hospital of Wuhan University, 216 Guanshan Road, Hongshan District, 430060, PR China.
Mater Sci Eng C Mater Biol Appl. 2021 Dec;131:112487. doi: 10.1016/j.msec.2021.112487. Epub 2021 Oct 14.
Surfaces with desirable cytocompatibility and bactericidal ability are favoured for orthopaedic implants to stimulate osteogenic activity and to prevent implant-associated infection. In this work, we creatively introduce ultrasonic vibration (UV) to micro-arc oxidation (MAO) process and explore its influence on the microstructure, corrosion property and biological responses of Zn-modified TiO coating. With the introduction of UV, a uniform surface layer with homogeneously-distributed clusters could be produced as the outer layer, which possesses a fusion band with the underlying TiO. The microstructural modification associated with UV results in the enhanced corrosion resistance, increased adhesive strength and improved biological performances of the resultant coating relative to that with the absence of UV. Hence, the ultrasonic auxiliary micro-arc oxidation (UMAO) is regarded as a promising surface modification method to produce Ti-based orthopaedic implants of high quality.
具有理想细胞相容性和杀菌能力的表面有利于骨科植入物，以刺激成骨活性和防止与植入物相关的感染。在这项工作中，我们创造性地将超声振动 (UV) 引入微弧氧化 (MAO) 工艺，并探索其对 Zn 改性 TiO 涂层的微观结构、腐蚀性能和生物响应的影响。随着 UV 的引入，可以在表面形成一层均匀的、具有均匀分布的团簇的外层，该外层与底层 TiO 具有融合带。与没有 UV 的情况相比，与 UV 相关的微观结构改性导致了增强的耐腐蚀性、增加的附着强度和改善的生物性能。因此，超声辅助微弧氧化 (UMAO) 被认为是一种很有前途的表面改性方法，可以生产高质量的基于 Ti 的骨科植入物。
