About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Biomaterials and Implants
|
| Presentation Title |
Phase Engineering of Mg-Zn Alloy for Bioimplantable Electronics |
| Author(s) |
Ji-Woo Gu, Jae-Young Bae, Guangzhe Li, Hae Won Hwang, So-Hyeon Lee, Sung-Geun Choi, Junsang Lee, Chi Hwan Lee, Ju-Young Kim, Myoung-Ryul Ok, Yu-Chan Kim, Seung-Kyun Kang |
| On-Site Speaker (Planned) |
Ji-Woo Gu |
| Abstract Scope |
Transient electronics using biodegradable materials offers a promising approach to implantable surgeries by eliminating the need for secondary removal procedures. Magnesium (Mg) is a representative metal conductor for transient electronic devices due to its high electrical conductivity, biocompatibility, and bioresorbability. However, the rapid dissolution of Mg remains limitation for operational lifetime in electronics forms. In this study, we design Mg-xZn alloy thin films exhibiting a homogeneous single-phase. The solid-solution Mg-xZn thin films were made by introducing sputtering that suppressed phase separation in non-equilibrium phase transformation process. Unlike the as-cast Mg-xZn alloy with MgyZnz precipitates that accelerate a galvanic corrosion and non-uniform dissolution in biofluids, the Mg-xZn alloy demonstrated enhanced dissolution resistance because it has relatively higher anodic potential compared to Mg. As a device application, wireless heating trace of Mg-3Zn thin film electrodes showed enhanced operation stability and durability validating their potential for clinically relevant thermos therapy applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Magnesium, Thin Films and Interfaces |