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Development of nano-ceramic-TiO2+Al2O3 layers for increasing antibacterial effect on prosthetic implant

Hamdi, D.A., Alneami, A.Q.H., Hamodi, J.F. and Kim, J. (2017) Development of nano-ceramic-TiO2+Al2O3 layers for increasing antibacterial effect on prosthetic implant. ARPN Journal of Engineering and Applied Sciences, 12 (13).

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The infection of the titanium implants still remains a problem which is usually difficult to treat and may lead to eventual implant removal. As a result, preventive measures are necessary to mitigate implant-related infection; one important strategy is to render the implant surface antibacterial. The objective of the present study was to develop a biomedical material for preventing and reduction the effect of Escherichia coli bacteria type on the prosthetic implants; this was done by investigating the effect of the radioisotope with CO60 as the source of Gamma ray with thickness film of metal oxide nanoparticles (NPs) of (Alumina and titanium) coated on Ti6Al4V alloy by using RF magnetron sputtering for growth-inhibitory effect on Escherichia colibacteria. The TiO2 coated as mid layer between substrate Ti alloy and Al2O3to increase the adhesion between coated film and substrate, also to reduce thermal expansion mismatch between substrate and Al2O3layer. The nanoparticles size of Al2O3 was 380nm. The results refers that the increasing of the thickness (t) of coated exposure of Gamma ray lead to increase the absorption (A) of radiation and reflection (R). By increasing (R), the material of coated become as source for Gamma ray around environment to reduce the growth of bacteria. In this study, the Gamma ray and increasing thickness at very high concentrations Al2O3 layer with nanoparticle size380nm are contributed to reduce growth of Escherichia coli. The effect of inhibited bacteria increased with increasing thickness of thin film.

Item Type: Journal Article
Murdoch Affiliation: School of Engineering and Information Technology
Publisher: Asian Research Publishing Network
Copyright: © 2017 Asian Research Publishing Network (ARPN)
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