Plasma Processes and Polymers · 2008 · 68 citations · 51 references
Natural SciencesBiomedical EngineeringMaterials ScienceBiocompatibilityBiomaterialsSurface ScienceBiomaterial CharacterizationPlasma Surface TreatmentProtein AdsorptionSurface BiocompatibilitySurface ModificationSurface Modification Of BiomaterialsBiocompatibility ImprovementPlasma Protein AdsorptionPlasma-induced FunctionalizationPlasma-treated Surface WettabilityProtein Adsorption AnalysisProtein Stability EnhancementSurface Coating Biocompatibility
Abstract PTFE samples were treated by low‐pressure O 2 RF plasmas. The adsorption of BSA was used as a probe for the protein‐resistant properties. Exposure of PTFE to an O 2 plasma leads to an increase in chamber pressure. OES reveals the presence of CO, CO 2 and F in the gas phase, indicating a strong etching of the PTFE surface by the plasma. Furthermore, the high‐resolution C1s spectra show CF 3 , CF and CCF components. WCA as high as 160° were observed, indicating a super‐hydrophobic behavior. AFM images of surfaces treated at high plasma power showed an increase in roughness. Lower amounts of BSA adsorption were detected on high power, O 2 plasma‐modified PTFE samples compared to low power, oxygen plasma‐modified ones. magnified image
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Ultrahydrophobic and Ultralyophobic Surfaces: Some Comments and Examples
Wei Chen, Alexander Y. Fadeev, Meng Che Hsieh et al. · Langmuir · 1999 · 1.2K citations
Natural Sciences, Materials Engineering, Materials Science +16
Jeffrey P. Youngblood, Thomas J. McCarthy · Macromolecules · 1999 · 594 citations
Natural Sciences, Materials Engineering, Materials Science +17