Fabrication of Sr-functionalized micro/nano-hierarchical structure ceramic coatings on 3D printing titanium

ABSTRACT

Effective and fast osseointegration is significantly affected by the topographic features and chemical compositions of titanium (Ti)-based orthopedic implants. In this study, strontium (Sr) ions functionalized ceramic coatings with cortex-like micro/nano-hierarchical structure were successfully fabricated on 3D printing Ti by micro-arc oxidation and hydrothermal treatment technology. The obtained coatings, which combine micron-scale pores and nano-scale flakes simultaneously, show rough and porous morphology, good surface wettability, and superior apatite induction ability. Therefore, Sr-incorporated biomimetic hierarchical structure coatings on 3D printing Ti may provide an alternative for the development of orthopedic implants, showing high-potential clinical application.

KEYWORDS:

• Micro/nano-hierarchical structure
• biocompatibility
• 3D printing
• biomimetic apatite

Acknowledgements

This work is supported by the National Natural Science Foundation of China (No. 51627805, U19A2085), the Science and Technology Development Program of Jilin Province (No. 20180520015JH) and the Open Funds of National Engineering Research Center of Near-Net-Shape Forming for Metallic Materials (2018011).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work is supported by the National Natural Science Foundation of China (No. 51627805, U19A2085), the Science and Technology Development Program of Jilin Province (No. 20180520015JH) and the Open Funds of National Engineering Research Center of Near-Net-Shape Forming for Metallic Materials (2018011).