Enhanced bioactivity and degradation behavior of zinc via micro-arc anodization for biomedical applications
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 co...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2025-02-01
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| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2024-0065 |
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| Summary: | 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. |
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| ISSN: | 2191-0324 |