Optimisation of micro-arc oxidation electrolyte for fabrication of antibacterial coating on titanium

Date

2018-01-01

Author

Aydogan, Dilek Teker
Muhaffel, Faiz
Kilic, Meryem Menekse
Acar, Ozge Karabiyik
Cempura, Grzegorz
Baydoğan, Murat
Gül-karagüler, Nevin
Kose, Gamze Torun
Czyrska-Filemonowicz, Aleksandra
Çimenoğlu, Hüseyin

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

289
views

0
downloads

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 (AgC2H3O2) 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 AgC2H3O2 added electrolytes exhibited an antibacterial efficiency of 99.8% against Staphylococcus aureus (S. aureus). Detailed examination revealed that the presence of 0.01 mol L-1 AgC2H3O2 in the electrolyte resulted in incorporation of 1.4 wt-% Ag into fabricated coating consisting mainly of outer hydroxyapatite (HA) and inner titanium oxide (TiO2) layers. In comparison to the Ag-free coating, 1.4 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.

Subject Keywords

Antibacterial test, Cell culture test, Micro-arc oxidation, Titanium, Hydroxyapatite, Titanium oxide

URI

https://hdl.handle.net/11511/68557

Journal

MATERIALS TECHNOLOGY

DOI

https://doi.org/10.1080/10667857.2017.1391931

Collections

Biomaterials and Tissue Engineering Application and Research Center (BİOMATEN), Article

Suggestions

OpenMETU
Core

Designing of Ti-Mg composites for various applications Bütev Öcal, Ezgi; Dericioğlu, Arcan F.; Department of Metallurgical and Materials Engineering (2019) In this study, galvanic corrosion of Ti-Mg based composites has been examined by combining different Mg-alloys with Ti6Al4V alloy and by addition of Na-rich layer between two dissimilar metals. After determining the wetting behavior of liquid unalloyed Mg, AZ91, and WE43 alloys on solid Ti6Al4V alloy, three different composites were manufactured via infiltration of liquid Mg/Mg-alloys into porous Ti6Al4V alloy skeletons. The same procedure was also repeated after coating the porous surfaces of Ti6Al4V alloy...
Genotoxicity study of high aspect ratio silver nanowires Charehsaz, Mohammad; COŞKUN, Sahin; Ünalan, Hüsnü Emrah; Reis, Rengin; Helvacioglu, Sinem; GIRI, Ashok Kumar; Aydin, Ahmet (2017-01-01) The genotoxicity potential of silver nanowires synthesized via the solution-based polyol method has been investigated. They were found to be non-mutagenic in three Salmonella strains and were not genotoxic in a clastogenicity assay in mice. Residual surfactant was found to have an effect on the toxicological properties of the nanowires by increasing the rate of Ag+ release. Residual surfactant can be easily degraded via a UV treatment.
Nano calcium phosphates doped with titanium and fluoride ions: sinterability and stability of phases Güngör Geridönmez, Serap; Evis, Zafer; Department of Engineering Sciences (2012) The purpose of this study was to synthesize calcium phosphates doped with titanium and fluoride ions in different combinations. Pure and doped calcium phosphates were synthesized by a precipitation method. The synthesized materials were sintered at 1100ºC and 1300ºC for 1h. The ceramics were characterized by density measurements to determine the effect of sintering temperature. Presence of phases and bonds were characterized by XRD diffraction and FTIR spectroscopy. Grain sizes of the samples were obtained ...
Bactericidal and in vitro osteogenic activity of nano sized cobalt-doped silicate hydroxyapatite Alshemary, Ammar Z.; Hussain, Rafaqat; Dalgic, Ali Deniz; Evis, Zafer (2022-10-01) Hydroxyapatite (HA) particles with enhanced antibacterial properties can be prepared by integrating metal ions into the crystal structure of the nanoparticles. Cobalt and silicate ions containing HA (Co/Si-HA) with the formula Ca10-xCox(PO4)6-y(SiO4)y(OH)2 (x = 0.2, 0.6, and 1.0 and y = 0.5) was successfully synthesised by using microwave-assisted wet precipitation method. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and inductively coupled...
Polybenzimidazole based nanocomposite membranes with enhanced proton conductivity for high temperature PEM fuel cells Ozdemir, Yagmur; Uregen, Nurhan; DEVRİM, YILSER (2017-01-26) In this study, phosphoric acid doped PBI nanocomposite membranes were prepared by dispersion of various amounts of inorganic nanoparticles in PBI polymer followed by phosphoric acid (H3PO4) doping for high temperature proton exchange membrane fuel cells (HT-PEMFC). All of the PBI composite membranes were cast from the same FBI polymer with the same molecular weight. Titanium dioxide (TiO2), silicon dioxide (SiO2) and inorganic proton conductor zirconium phosphate (ZrP) were used as inorganic fillers. The PB...

Citation Formats

D. T. Aydogan et al., “Optimisation of micro-arc oxidation electrolyte for fabrication of antibacterial coating on titanium,” MATERIALS TECHNOLOGY, pp. 119–126, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/68557.