Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Begutachtungsstatus Forschungsschwerpunkt Abteilungen Publikationsherkunft OPUS4-530 Artikel aus einer Zeitschrift/Zeitung Hornberger, Helga; Striegl, Birgit; Trahanofsky, M.; Kneissl, F.; Kronseder, Matthias Degradation and bioactivity studies of Mg membranes for dental surgery Bioresorbable materials are under investigation due to their promising properties for applications as implant material. This study is about the degradation and bioactivity behaviour of magnesium foils, which allegorize dental membranes. The degradation behaviour including pitting corrosion during immersion tests can be precisely observed using micro-computed tomography. Using the bioactivity test according to Kokubo, it is shown that magnesium has strong Ca-phosphate layer formation correlated with high degradation. Therefore, magnesium foils appear to hold a great potential for bone implant application. Elsevier 2019 4 Materials Letter X 2 June 1 5 10.1016/j.mlblux.2019.100007 peer-reviewed Lebenswissenschaften und Ethik Fakultät Maschinenbau OPUS4-2449 Artikel aus einer Zeitschrift/Zeitung Hornberger, Helga; Kissel, Hannah; Striegl, Birgit; Kronseder, Matthias; Vollnhals, Florian; Christiansen, Silke H. 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. Wiley 2022 11 Materials and Corrosion 73 1 8 19 urn:nbn:de:bvb:898-opus4-24499 10.1002/maco.202112385 peer-reviewed Produktion und Systeme Fakultät Maschinenbau