Exploring a wider range of Mg-Ca-Zn metallic glass as biocompatible alloys using combinatorial sputteringElectronic supplementary information (ESI) available. See DOI: 10.1039/c7cc02733h

In order to bypass the limitation of bulk metallic glasses fabrication, we synthesized thin film metallic glasses to study the corrosion characteristics of a wide atomic% composition range, Mg(35.9-63%)Ca(4.1-21%)Zn(17.9-58.3%), in simulated body fluid. We highlight a clear relationship between Zn c...

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Main Authors: Li, Jinyang, Gittleson, Forrest S, Liu, Yanhui, Liu, Jingbei, Loye, Ayomiposi M, McMillon-Brown, Lyndsey, Kyriakides, Themis R, Schroers, Jan, Taylor, André D
Format: Article
Language:English
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Summary:In order to bypass the limitation of bulk metallic glasses fabrication, we synthesized thin film metallic glasses to study the corrosion characteristics of a wide atomic% composition range, Mg(35.9-63%)Ca(4.1-21%)Zn(17.9-58.3%), in simulated body fluid. We highlight a clear relationship between Zn content and corrosion current such that Zn-medium metallic glasses exhibit minimum corrosion. In addition, we found higher Zn content leads to a poor in vitro cell viability. These results showcase the benefit of evaluating a larger alloy compositional space to probe the limits of corrosion resistance and prescreen for biocompatible applications. Using combinatorial thin film processing and characterization techniques, we demonstrate a new capability of exploring a wider composition range of Mg-Ca-Zn metallic glass for biocompatible applications.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc02733h