Research Information System
JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, vol.32, no.1, pp.231-241, 2017 (SCI-Expanded)
In order to combine the antimicrobial effect of silver with mechanical and chemical properties of titanium nitrate, Ag was deposited on the surface of Ti6Al4V (orthopedic implant material) in N-2 plasma by using plasma immersion ion implantation and deposition (PIII&D) method. The coatings were formed by using varied negative pulsed high voltage and magnetron sputtering voltage values of PIII&D process. Surface morphologies of coatings were determined with atomic force microscopy (AFM), while cross-section morphologies were determined with field emission scanning electron microscopy (FE-SEM). The phases and chemical compositions of coatings were investigated by using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. XPS depth profile analysis were done to reveal the penetration of Ag+ ions into the surface of specimen. In in vitro anti-bacterial effectiveness experiments, the adhesion of E. coli (Escherichia coli) microorganism, which were marked with Tc-99m radioisotope, on surfaces of specimens was investigated. It was consequently determined that Ag was dominant in the coatings obtained by applying 8 kV negative pulsed high voltage, while Ag decreased on the surface depending on the increase in the voltage.