About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Biomaterials and Implants
|
| Presentation Title |
Coated Magnesium Alloys with hybrid HA and GO Nanoparticles for Improved Corrosion Resistance and Cytocompatibility |
| Author(s) |
Noah Parayil, Lucas Chance, Beatrice Lehner, Anthony Nguyen, Hamdy Ibrahim |
| On-Site Speaker (Planned) |
Noah Parayil |
| Abstract Scope |
Magnesium (Mg) is a bioresorbable metal with potential biocompatibility and favorable mechanical properties for biomedical applications. However, its fast corrosion rates in the physiological environment could limit its use. Plasma electrolytic oxidation (PEO) coating has been explored due to its strong adhesion to the Mg substrate, but its porous nature negatively affects corrosion protection. To this end, this work systematically investigates the effect of mixing bioactive particles such as hydroxyapatite (HA) and graphene oxide (GO) and the process parameters on the morphological and corrosion characteristics of PEO-coated Mg alloy (ZK60) samples. Corrosion behavior and biological response are assessed through immersion tests, electrochemical tests, cytotoxicity testing, and surface wettability analysis. The results show that the incorporation of these nanoparticles in the electrolyte of PEO decreases the corrosion rate of the alloy and efficiently seals the pores of the PEO coatings with potential biocompatibility. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Magnesium, Surface Modification and Coatings |