Characteristics of multi-layer coating formed on commercially pure titanium for biomedical applications


Teker D., MUHAFFEL F., MENEKSE M., KARAGULER N. G. , BAYDOGAN M., CIMENOGLU H.

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, vol.48, pp.579-585, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48
  • Publication Date: 2015
  • Doi Number: 10.1016/j.msec.2014.12.058
  • Journal Name: MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.579-585
  • Keywords: Commercially pure titanium, Micro-arc oxidation, Titanium oxide layer, Hydroxyapatite, Biocompatibility, Antibacterial surface, ULTRAFINE-GRAINED TITANIUM, MECHANICAL-PROPERTIES, SURFACE MODIFICATION, MICROARC OXIDATION, SILVER, HYDROXYAPATITE, TI-6AL-4V, IMPLANTS, BEHAVIOR, DIOXIDE
  • Istanbul Technical University Affiliated: Yes

Abstract

An innovative multi-layer coating comprising a bioactive compound layer (consisting of hydroxyapatite and calcium titanate) with an underlying titanium oxide layer (in the form of anatase and rutile) has been developed on Grade 4 quality commercially pure titanium via a single step micro-arc oxidation process. Deposition of a multi-layer coating on titanium enhanced the bioactivity, while providing antibacterial characteristics as compared its untreated state. Furthermore, introduction of silver (4.6 wt.%) into the multi-layer coating during micro-arc oxidation process imposed superior antibacterial efficiency without sacrificing the bioactivity. (C) 2014 Elsevier B.V. All rights reserved.