Abstract
Radiofrequency magnetron sputtering deposition at low temperature (150°C) was used to deposit bioactive glass coatings onto titanium substrates. Three different working atmospheres were used: Ar 100%, Ar + 7%O2, and Ar + 20%O2. The preliminary adhesion tests (pull-out) produced excellent adhesion values (~75 MPa) for the as-deposited bio-glass films. Bioactivity tests in simulated body fluid were carried out for 30 days. SEM–EDS, XRD and FTIR measurements were performed. The tests clearly showed strong bioactive features for all the prepared films. The best biomineralization capability, expressed by the thickest chemically grown carbonated hydroxyapatite layer, was obtained for the bio-glass coating sputtered in a reactive atmosphere with 7% O2.
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Acknowledgments
Thanks are due to CICECO for the support and to the Portuguese Foundation for Science and Technology for the fellowship grants of S. Pina (SFRH/BD/21761/2005) and to Romanian Ministry of Education and Research for the scientific projects support: CEEX 307/2006 and PN II 71-110/2007. The financial support of “BD” PhD research scholarship offered by CNCSIS is also gratefully acknowledged by G.E. Stan.
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C. O. Morosanu: Deceased.
An erratum to this article can be found at http://dx.doi.org/10.1007/s10856-010-4040-6
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Stan, G.E., Pina, S., Tulyaganov, D.U. et al. Biomineralization capability of adherent bio-glass films prepared by magnetron sputtering. J Mater Sci: Mater Med 21, 1047–1055 (2010). https://doi.org/10.1007/s10856-009-3940-9
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DOI: https://doi.org/10.1007/s10856-009-3940-9