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The study of the passive film formed on the surface of 316L stainless steel in artificial physiological media

B. TUTUNARU1,* , A. PATRU1, I. BIBICU2, M. PREDA1

Affiliation

  1. Faculty of Chemistry, University of Craiova, Calea Bucuresti 107i, Craiova, Romania
  2. The National Institute of Materials Physics, Bucharest 77125, MG-7Magurele, Romania

Abstract

This work is aimed at providing a better understanding of the biocompatibility of 316L stainless steel in the human body, where various biomolecules are able to bind metal ions and convey them from the surface of orthopaedic implant to various parts of the body. The passivation behavior of orthopaedic 316L implant was studied by associating the electrochemical methods (Differential Pulse Voltammetry and Cyclic Voltammetry) with the surface Mössbauer spectroscopy as a function of type of physiological media; glucydic, proteic and lipidic. Was studied the electrochemical behaviour of steel in three artificial media: Aminosteryl, Intralipid and Kabiven in the concentrations corresponding to the administration dosages. The results were discussed in the context of the formation of passive film which stability strongly depends on the corrosive activity of the physiological media in the order: Aminosteryl < Kabiven < Intralipid..

Keywords

Artificial physiological media, 316L stainless steel, Electrochemical measurements, Mössbauer spectroscopy.

Submitted at: March 23, 2007
Accepted at: Nov. 16, 2007

Citation

B. TUTUNARU, A. PATRU, I. BIBICU, M. PREDA, The study of the passive film formed on the surface of 316L stainless steel in artificial physiological media, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 11, pp. 3400-3404 (2007)