The Preparation of Biomass-Derived Carbon Dots and Its Application Prospect in the Field of Vascular Stent Coating

Biomass material serves as one of the most advantageous carbon sources for the synthesis of carbon dots (CDs) due to its abundant availability, cost-effectiveness, and environmental sustainability. Biomass-derived carbon dots (B-CDs), which are new zero-dimensional carbon nanomaterials, have presented broad application prospects in the medical field and have become a research focus. In recent years, the death rate caused by vascular diseases has been high, and interventional therapy is one of the important means to treat vascular stenosis. As a material with excellent biocompatibility and fluorescence properties, B-CDs have shown great potential in the field of vascular stents, and their unique properties provide new ideas and possibilities for improving the biocompatibility of vascular stents and realizing real-time tracer diagnosis. This paper reviews the preparation methods, modification techniques, and application prospects of B-CDs in the coating of vascular stents. It discusses current challenges and potential solutions while forecasting future development directions, thereby providing innovative insights and pathways for the research and development of a new generation of vascular stents.