In vitro degradation and corrosion evaluation of Mg-Ca alloys for biomedical applications

A. I. Bita, A. Antoniac, C. Cotrut, E. Vasile, I. Ciuca, M. Niculescu, I. Antoniac

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The ability to adjust degradation rate of magnesium alloys is critical for the successful development of new biodegradable trauma implants. The aim of this study was to evaluate the biodegradability of an Mg0.8Ca alloy in different simulated biological medium by immersion tests and corrosion resistance testing using electrochemical measurements. The degradation of the experimental magnesium alloy was investigated by immersion tests in two different simulated medium (Simulated Body Fluid-SBF and Dulbecco's Modified Eagle Medium-DMEM) for 3, 5, 7 and 10 days at 37°C. The evaluation of corrosion resistance was performed using electrochemical measurements in the same simulated mediums for 1 hour, at 37°C. The surface morphology of the experimental sample after both tests was investigated using scanning electron microscopy - SEM. The experimental results showed that the experimental magnesium alloy Mg0.8Ca appear to be a promising biomaterial for biodegradable trauma implants but their biodegradation rate must be improved using different techniques like coatings.

Original languageEnglish
Pages (from-to)394-398
Number of pages5
JournalJournal of Optoelectronics and Advanced Materials
Volume18
Issue number3-4
Publication statusPublished - 1 Mar 2016
Externally publishedYes

Keywords

  • Biomedical
  • Corrosion rate
  • Degradation
  • Magnesium alloys
  • Surface

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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  • Cite this

    Bita, A. I., Antoniac, A., Cotrut, C., Vasile, E., Ciuca, I., Niculescu, M., & Antoniac, I. (2016). In vitro degradation and corrosion evaluation of Mg-Ca alloys for biomedical applications. Journal of Optoelectronics and Advanced Materials, 18(3-4), 394-398.