Optimisation of micro-arc oxidation electrolyte for fabrication of antibacterial coating on titanium. (28th January 2018)

• Record Type: Journal Article
• Authors: Teker Aydogan, Dilek; Muhaffel, Faiz; Menekse Kilic, Meryem; Karabiyik Acar, Ozge; Cempura, Grzegorz; Baydogan, Murat; Karaguler, Nevin Gul; Torun Kose, Gamze; Czyrska-Filemonowicz, Aleksandra; Cimenoglu, Huseyin
• Is Part Of: Materials technology. Volume 33:Number 2(2018)
• Page Start: 119
• Page End: 126
• Publication Date: 2018-01-28
• Subjects: Antibacterial test -- Cell culture test -- Micro-arc oxidation -- Titanium -- hydroxyapatite -- Titanium oxide; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.1105
• DOI: 10.1080/10667857.2017.1391931
• Languages: English
• ISSNs: 1066-7857

Abstract

Abstract: This study has been carried out to optimise the silver (Ag) content of the coating synthesised on commercially pure titanium (Cp–Ti, Grade 4) for biomedical applications by micro-arc oxidation (MAO) process. The MAO process has been conducted in electrolytes containing silver acetate (AgC2 H3 O2 ) at different concentrations between 0 and 0·002 mol L −1 . When compared to the base electrolyte, coatings synthesised in ≥0·001 mol L −1 AgC2 H3 O2 added electrolytes exhibited an antibacterial efficiency of 99·98% against Staphylococcus aureus ( S. aureus ). Detailed examination revealed that the presence of 0·001 mol L −1 AgC2 H3 O2 in the electrolyte resulted in incorporation of 1·14 wt-% Ag into fabricated coating consisting mainly of outer hydroxyapatite (HA) and inner titanium oxide (TiO2 ) layers. In comparison to the Ag-free coating, 1·14 wt-% Ag in the coating lowered the proliferation of SAOS-2 cells, which still tended to grow at a relatively low rate with increasing culturing time.