This study has established a complete causal chain linking “fabrication process—microstructure—degradation behavior—biocompatibility.” Conventional iron–manganese alloys exhibit excellent corrosion resistance, making them well suited for implant applications requiring long-term mechanical support. By contrast, iron–manganese alloys produced via plasma‑assisted ultrasonic atomization and fabricated using laser powder bed fusion (LPBF) offer controllable degradation rates and enable patient‑specific shaping, thereby aligning seamlessly with the current trend toward precision medicine. These findings provide critical experimental evidence for optimizing the manufacturing processes of bioresorbable metallic implants and facilitating their clinical translation.
Unveiling the oxidation mechanisms of niobium materials to develop high-performance biomaterials.
This study elucidates the relationship between thermal oxidation temperature and the biomedical properties of niobium, thereby defining an optimal process window for the low-cost, high-efficiency fabrication of niobium oxide coatings for biomedical applications. Leveraging the straightforward air‑thermal oxidation process, it is possible to precisely tailor the surface characteristics of niobium; when combined with advanced powder‑processing techniques such as ultrasonic milling, this approach can further diversify the product portfolio of niobium‑based biomaterials. These advances not only facilitate the practical implementation of niobium and niobium oxide in orthopedic and dental implant devices but also provide valuable insights for surface‑modification research on other medical metals.
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