About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Enhancing Materials by Changing Surfaces and Interfaces: An EPD/FMD/LMD/SMD Symposium in Honor of Jaroslaw Drelich
|
| Presentation Title |
Development of Polydopamine Coating on Biodegradable Zn Implant for Vascular Stent Application |
| Author(s) |
Md Tanvir Hossain, Jeremy Goldman, Hamid Reza Bakhsheshi-Rad, Jaroslaw W. Drelich |
| On-Site Speaker (Planned) |
Md Tanvir Hossain |
| Abstract Scope |
Bioactive polymer-metal ion coatings on biodegradable implants can significantly enhance biocompatibility and support vascular remodeling via controlled metal ion release. In this study, mussel-inspired polydopamine (PDA) coatings loaded with copper ions (PDA-Cu2) were applied to zinc (Zn) implants using an immersion method. Copper ions catalyze nitric oxide (NO) generation from donors, reducing platelet and inflammatory cell activation. Coating conditions such as pH and solution composition were optimized, with polymerization monitored by UV-Vis spectroscopy. The PDA-Cu2+ coatings were characterized using Fourier Transform Infrared (FTIR) and X-ray Photoelectron (XPS) Spectroscopy, confirming uniform chemical bonding. A homogeneous PDA-Cu2+ layer was successfully formed on Zn, improving surface properties and corrosion resistance. Electrochemical tests showed the PDA-coated Zn exhibited an ~11% reduction in corrosion rate compared to bare zinc, suggesting enhanced degradation control for implant applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Polymers, Surface Modification and Coatings |