Influence of titanium alloying element substrata on bacterial adhesion

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Influence of titanium alloying element substrata on bacterial adhesion

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/226497

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Title: Influence of titanium alloying element substrata on bacterial adhesion
Author(s): Mediaswanti, Kun; Truong, Vi Khanh; Hasan, Jafar; Ivanova, Elena P.; Malherbe, Francois; Berndt, Christopher C.; Wen, Cuie; Wang, James
Abstract: Titanium and titanium alloys have been widely employed in many load-bearing orthopaedic applications due to their excellent strength and corrosion resistance. However, postimplantation infections might occur even though considerable studies have been made. Choosing a bio-friendly alloying element is one way to reduce infection risk. The aim of this study is to evaluate the extent of bacterial attachment on titanium, tantalum, niobium and tin surfaces. Two pathogenic bacterial strains, namely Staphylococcus aureus CIP 65.8T and Pseudomonas aeruginosa ATCC 9027, were used in this study. Quantification of bacterial attachment was performed using scanning electron microscopy. Results indicated that the surface chemistry and topography of the investigated materials significantly influence the degree of P. aeruginosa and S. aureus adhesion; however, surface wettability did not show a significant impact upon bacterial retention. In this study, tin was shown to be the most attractive material for bacteria adhesion but tantalum limits the bacterial adhesion. Therefore, it is suggested to limit the amount of tin as an titanium alloying element due to its nature to attract P. aeruginosa and S. aureus adhesion.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Industrial Research Institute Swinburne
Research centre: Swinburne University of Technology. Faculty of Life and Social Sciences. Environment and Biotechnology Centre
Source: Advanced Materials Research: Advanced Engineering Materials II: selected papers from the 2nd International Conference on Advanced Engineering Materials and Technology (AEMT 2012), Zhuhai, China, 15-17 June 2012 / Chunxiang Cui, Yali Li and Zhihao Yuan (eds.), Vol. 535-537 (2012), pp. 992-995
Publication year: 2012
FOR Code(s): 0912 Materials Engineering
Keyword(s): Alloying elements; Bacterial attachment; Biomaterial; Titanium alloys
Publisher: Trans Tech Publications
ISSN: 1022-6680 (series ISSN)
ISBN: 9783037854464, 3037854464
Publisher URL: http://dx.doi.org/10.4028/www.scientific.net/AMR.535-537.992
Peer reviewed