Influence of titanium alloying element substrata on bacterial adhesion

Kun Mediaswanti, Vi Khanh Truong, Jafar Hasan, Elena P. Ivanova, Francois Malherbe, Christopher C. Berndt, Cuie Wen, James Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

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 65.8 T 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.

Original languageEnglish
Title of host publicationAdvanced Engineering Materials II
EditorsChunxiang Cui, Yali Li, Zhihao Yuan
PublisherTrans Tech Publications Ltd
Pages992-995
Number of pages4
ISBN (Print)9783037854464
DOIs
Publication statusPublished - 19 Sept 2012
Externally publishedYes
Event2nd International Conference on Advanced Engineering Materials and Technology, AEMT 2012 - Zhuhai, China
Duration: 6 Jul 20128 Jul 2012

Publication series

NameAdvanced Materials Research
Volume535-537
ISSN (Print)1022-6680

Conference

Conference2nd International Conference on Advanced Engineering Materials and Technology, AEMT 2012
Country/TerritoryChina
CityZhuhai
Period6/07/128/07/12

Keywords

  • Alloying elements
  • Bacterial attachment
  • Biomaterials
  • Titanium alloys

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