Reduction of bacterial adhesion on ion-implanted stainless steel surfaces

Q. Zhao, Y. Liu, C. Wang, S. Wang, N. Peng, C. Jeynes

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    45 Citations (Scopus)

    Abstract

    The high incidence of infections caused by the use of biomedical devices has a severe impact on human health. An approach to reduce the complications is to modify,the surface properties of biomedical devices. In this paper, stainless steel disks were implanted with N+, 0(+) and SiF3+, respectively, by an ion implantation technique. The surface properties of the ion-implanted surfaces were characterized, including their surface chemical composition, roughness, topography, wettability and surface energy. Bacterial adhesion of Staphylococcus epidermidis and Staphylococcus aureus, which frequently cause medical device-associated infections was evaluated. The experimental results showed that these implanted stainless steels, particularly SiF3+ implanted stainless steel performed much better than untreated stainless steel control on reducing bacterial attachment. (C) 2007 IPEM. Published by Elsevier Ltd. All rights reserved.

    Original languageEnglish
    Pages (from-to)341-349
    Number of pages9
    JournalMedical Engineering & Physics
    Volume30
    Issue number3
    DOIs
    Publication statusPublished - Apr 2008

    Keywords

    • medical devices
    • ion implantation
    • surface analysis
    • bacterial adhesion
    • STAPHYLOCOCCUS-AUREUS
    • FREE-ENERGY
    • ANTIBACTERIAL COATINGS
    • BIOFILM FORMATION
    • EPIDERMIDIS
    • INFECTIONS
    • COMPONENTS
    • INVITRO

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