Enhanced bioactivity and degradation behavior of zinc via micro-arc anodization for biomedical applications

Dong H, Xu W, Virtanen S, Wang Y (2025)

Publication Type: Journal article

Publication year: 2025

Journal

High Temperature Materials and Processes De Gruyter

Book Volume: 44

Article Number: 20240065

Journal Issue: 1

DOI: 10.1515/htmp-2024-0065

Abstract

Zinc-based alloys have attracted increasing interest as absorbable implant metals due to their suitable degradation rate and biocompatibility. However, a high concentration of Zn2+ due to the degradation process results in high cytotoxicity, and low osteogenesis remains a problem. In this work, a compact coating well integrated into the substrate was fabricated on the surface of zinc via micro-arc oxidation (MAO). The coating is mainly composed of ZnO. The addition of phosphate in the coating reinforced the adhesive strength between Zn and the coating. Electrochemical measurements demonstrate a superior corrosion resistance of MAO-P samples as compared to the substrate. Long-term immersion measurements in simulated body fluid indicate that the coating improved the bioactivity of the substrate, which is promising in view of orthopedic applications.

Authors with CRIS profile

Sannakaisa Virtanen Professur für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)

Involved external institutions

Jiangsu University of Science and Technology CN China (CN)

How to cite

APA:

Dong, H., Xu, W., Virtanen, S., & Wang, Y. (2025). Enhanced bioactivity and degradation behavior of zinc via micro-arc anodization for biomedical applications. High Temperature Materials and Processes, 44(1). https://doi.org/10.1515/htmp-2024-0065

MLA:

Dong, Hongzhou, et al. "Enhanced bioactivity and degradation behavior of zinc via micro-arc anodization for biomedical applications." High Temperature Materials and Processes 44.1 (2025).

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