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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.

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Metadaten
Author:Helga Hornberger, Hannah Kissel, Birgit Striegl, Matthias Kronseder, Florian Vollnhals, Silke H. Christiansen
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