How to cite this article: Contu F. 2012. The cathodic behavior of titanium: Serum effect. J Biomed Mater Res Part B 2012:100B:544–552.
The cathodic behavior of titanium: Serum effect†
Article first published online: 28 NOV 2011
Copyright © 2011 Wiley Periodicals, Inc.
Journal of Biomedical Materials Research Part B: Applied Biomaterials
Volume 100B, Issue 2, pages 544–552, February 2012
How to Cite
Contu, F. (2012), The cathodic behavior of titanium: Serum effect. J. Biomed. Mater. Res., 100B: 544–552. doi: 10.1002/jbm.b.31984
- Issue published online: 4 JAN 2012
- Article first published online: 28 NOV 2011
- Manuscript Accepted: 8 JUL 2011
- Manuscript Revised: 6 JUL 2011
- Manuscript Received: 7 MAR 2011
- cathodic reactions;
- bovine serum;
- corrosion current
The cathodic behavior of titanium was investigated in inorganic buffer solutions and in fetal bovine serum through potential sweep techniques. Under cathodic polarization, the oxygen reduction and the hydrogen evolution reactions were observed. It was found that the activity of the electrode toward the electron transfer increased with decreasing the electrode surface charge. The polarization curves recorded in serum displayed the same features as those observed in inorganic buffered solutions. However, organic molecules were likely adsorbed onto the titanium surface and the adsorption reactions were potential dependant. Additionally, it was noticed that the buffer capacity of serum could be overwhelmed by the progressive interface alkalinization during cathodic polarization. Furthermore, serum affected the corrosion current of the implant materials and the effect was pH-dependent. © 2011 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 100B: 544–552, 2011.