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

Materials science & engineering. C, Materials for biological applications (2015-01-13)
Dilek Teker, Faiz Muhaffel, Meryem Menekse, Nevin Gul Karaguler, Murat Baydogan, Huseyin Cimenoglu
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 (4.6wt.%) into the multi-layer coating during micro-arc oxidation process imposed superior antibacterial efficiency without sacrificing the bioactivity.

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