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Bacterial adhesion on ion-implanted stainless steel surfaces

Authors
Journal
Applied Surface Science
0169-4332
Publisher
Elsevier
Publication Date
Volume
253
Issue
21
Identifiers
DOI: 10.1016/j.apsusc.2007.04.044
Keywords
  • Ion Implantation
  • Surface Properties
  • Bacterial Adhesion
Disciplines
  • Chemistry
  • Medicine

Abstract

Abstract Stainless steel disks were implanted with N +, O + and SiF 3 +, respectively at the Surrey Ion Beam Centre. The surface properties of the implanted surfaces were analyzed, including surface chemical composition, surface topography, surface roughness and surface free energy. Bacterial adhesion of Pseudomonas aeruginosa, Staphylococcus epidermidis and Staphylococcus aureus, which frequently cause medical device-associated infections was evaluated under static condition and laminar flow condition. The effect of contact time, growth media and surface properties of the ion-implanted steels on bacterial adhesion was investigated. The experimental results showed that SiF 3 +-implanted stainless steel performed much better than N +-implanted steel, O +-implanted steel and untreated stainless steel control on reducing bacterial attachment under identical experimental conditions.

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