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Abderrazak Djendel

Abderrazak Djendel

Aix-Marseille University, France

Title: Electrochemical coating of Ti-6Al-4V materials to promote dental and orthopedic surgery

Biography

Biography: Abderrazak Djendel

Abstract

Titanium and its alloys are widely used as biomaterials such as human body implants [1]. Their good biocompatibility is correlated with a natural layer of titanium oxide (TiO2) that presents anti-corrosion properties [2]. Since this layer is very thin (in the nanometers range), adherent and smooth, it cannot resist long time loads as required for orthopedic implants [3] and do not allow adequate cell adhesion [4]. Surface improvements are then necessary. In that way, electrochemical anodization is a simple method to achieve these objectives: create a rough surface for better cell development and a dense barrier layer to improve corrosion resistance [6]. We present here electrochemical surface modifications on Ti-6Al-4V alloy (Titanium grade 5) that consisting of different TiO2 layers that can be monitored as a function of the electrochemical conditions used: either compact (C), or nanotubular (N), or combined (NC). Several characterizations were recorded such as: morphological, chemical and structural analyses, corrosion tests in physiological conditions, adhesion measurements, hydrophilicity and cell growth quantification. Comparison of the results allowed us to determine the best coating from both corrosion and bioactive (perspectives) point of view.

Keywords: Bones, Ti-6Al-4V, Nanotubes, Corrosion, Adhesion, Cell development.

Recent Publications:

  1. D.R.N. Correa, F.B. Vicente, T.A.G. Donato, V.E. Arana-Chavez, M.A.R. Buzalaf, C.R. Grandini (2014), The effect of the solute on the structure, selected mechanical properties, and biocompatibility of Ti-Zr system alloys for dental applications, Mater. Sci. Eng. C. 34:354–359

  2. K.L. Ong, J. Schmier, K. Zhao, F. Mowat, E. Lau, S.M. Kurtz (2009), Primary and Revision Arthroplasty Surgery Caseloads in the United States from 1990 to 2004, J. Arthroplasty 24:195–203.

  3. E.M. Szesz, B.L. Pereira, N.K. Kuromoto, C.E.B. Marino, G.B. De Souza, P. Soares (2013), Electrochemical and morphological analyses on the titanium surface modified by shot blasting and anodic oxidation processes, Thin Solid Films 528:163–166.

  4. M. Sarraf, A. Dabbagh, B. Abdul Razak, R. Mahmoodian, B. Nasiri-Tabrizi, H.R.M. Hosseini, S. Saber-Samandari, N.H. Abu Kasim, H. Abdullah, N.L. Sukiman (2018), Highly-ordered TiO2 nanotubes decorated with Ag2O nanoparticles for improved biofunctionality of Ti6Al4V, Surf. Coatings Technol. 349:1008–1017.

  5. J. Qin, Z. Cao, H. Li, Z. Su (2021), Formation of anodic TiO2 nanotube arrays with ultra-small pore size, Surf. Coatings Technol. 405:126661.

  6. D. Regonini, C.R. Bowen, A. Jaroenworaluck, R. Stevens (2013), A review of growth mechanism, structure and crystallinity of anodized TiO2 nanotubes, Mater. Sci. Eng. R Reports. 74:377–406.