Hornberger, Helga and Kissel, Hannah and Striegl, Birgit and Kronseder, Matthias and Vollnhals, Florian and Christiansen, Silke (2022) Bioactivity and corrosion behavior of magnesium barrier membranes. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 73 (1). pp. 8-19. ISSN 0947-5117, 1521-4176
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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 H-2 development in Dulbecco's modified Eagle's medium showed to be the most appropriate method, exhibiting a corrosion rate of 0.5 mm center dot 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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | IN-VITRO CORROSION; PURE MAGNESIUM; DEGRADATION; ALLOYS; VIVO; MG; IMPLANTS; EXPOSURE; WE43; XPS; bioactivity; corrosion rate; degradation; dental membrane; magnesium |
| Subjects: | 500 Science > 530 Physics 600 Technology > 600 Technology (Applied sciences) |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Aug 2022 05:42 |
| Last Modified: | 17 Aug 2022 05:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46525 |
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