4. Clinical Translation, Regulatory Considerations, and Future Perspectives: Challenges in Iron-Based Biodegradable Materials for Biomedical Applications

This chapter delves into the challenges and advancements in iron-based biodegradable materials for biomedical applications, with a focus on clinical translation, regulatory considerations, and future perspectives. The text explores the evolution of biodegradable stents, highlighting the advantages and limitations of iron-based materials compared to traditional stainless steel and other biodegradable metals like magnesium and zinc. It discusses various strategies to enhance the corrosion rate of iron-based materials, including alloying with elements like manganese, palladium, and silver, as well as surface coatings and manufacturing modifications. The chapter also examines the regulatory landscape for biodegradable materials, emphasizing the importance of biocompatibility, degradation behavior, and mechanical integrity. Additionally, it provides an overview of the timeline for clinical translation and the key considerations for regulatory approval. The text concludes with a look at future research directions, including the potential for personalized medicine and optimized drug delivery mechanisms in iron-based biodegradable stents.