Static secondary ion mass spectrometric investigation of the glow-discharge-treated surfaces

M. S. Sheu*, A. S. Hoffman, B. D. Ratner, J. Feijen

*Corresponding author for this work

    Research output: Contribution to journalConference articleAcademicpeer-review

    6 Citations (Scopus)

    Abstract

    Previously, a nonfouling surface containing polyethylene oxide (PEO) has been developed using a glow discharge process. In this process, a PEO surfactant is first deposited on a hydrophobic polymer surface via a solvent evaporation method. Then the surfactant is crosslinked to the substrate surface by an argon RFGD treatment. A dramatic reduction of protein adsorption and platelet adhesion on the treated surface was observed only when treated with a low power (<5 W) and short treatment time (30 s). In this study, a static secondary ion mass spectrometry (SSIMS) was used to investigate the possible structure changes of PEO chains in the glow-discharge-treated surfactants. Results from this study suggest that the increased protein adsorption and platelet adhesion at longer treatment times (>30 s) are most likely due to degradation of PEO chains in the RFGD-treated surfactant (along with minor surface oxidation).

    Original languageEnglish
    Pages (from-to)29-40
    Number of pages12
    JournalJournal of Applied Polymer Science. Applied Polymer Symposium
    Issue number54
    Publication statusPublished - 1 Dec 1994
    EventAmerican Chemical Society Symposium on Plasma Deposition of Polymeric Thin Films: Chemistry, Characterization, and Applications 1993 - Denver, United States
    Duration: 28 Mar 199329 Mar 1993

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