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Bioactivity and corrosion behavior of magnesium barrier membranes
- In the current research, magnesium and its alloys have been intensively studied as resorbable implant materials. Magnesium materials combine their good mechanical properties with bioactivity, which make them interesting for guided bone regeneration and for the application as barrier membranes. In this study, the in vitro degradation behavior of thin magnesium films was investigated in cell medium and simulated body fluid. Three methods were applied to evaluate corrosion rates: measurements of (i) the gaseous volume evolved during immersion, (ii) volume change after immersion, and (iii) polarization curves. In this comparison, measurements of H2 development in Dulbecco's modified Eagle's medium showed to be the most appropriate method, exhibiting a corrosion rate of 0.5 mm·year−1. Observed oxide and carbon contamination have a high impact on controlled degradation, suggesting that surface treatment of thin foils is necessary. The bioactivity test showed positive results; more detailed tests in this area are of interest.
Author: | Helga Hornberger, Hannah Kissel, Birgit Striegl, Matthias Kronseder, Florian Vollnhals, Silke H. Christiansen |
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URN: | urn:nbn:de:bvb:898-opus4-24499 |
DOI: | https://doi.org/10.1002/maco.202112385 |
Parent Title (German): | Materials and Corrosion |
Publisher: | Wiley |
Document Type: | Article |
Language: | English |
Year of first Publication: | 2022 |
Publishing Institution: | Ostbayerische Technische Hochschule Regensburg |
Release Date: | 2022/01/27 |
Volume: | 73 |
Issue: | 1 |
First Page: | 8 |
Last Page: | 19 |
Note: | Corresponding author: Helga Hornberger |
Institutes: | Fakultät Maschinenbau |
Fakultät Maschinenbau / Labor Biomaterialien | |
Begutachtungsstatus: | peer-reviewed |
research focus: | Produktion und Systeme |
OpenAccess Publikationsweg: | Hybrid Open Access - OA-Veröffentlichung in einer Subskriptionszeitschrift/-medium |
Corresponding author der OTH Regensburg | |
Funding: | DEAL Wiley |
Licence (German): | Creative Commons - CC BY-NC-SA - Namensnennung - Nicht kommerziell - Weitergabe unter gleichen Bedingungen 4.0 International |