Surface characterization of polymers for medical devices.
作者： C. Werner , H.-J. Jacobasch
DOI: 10.1177/039139889902200309
关键词:
摘要: A survey is given on analytical techniques currently applied to the surface characterization of biomedical polymers. The include spectroscopies, thermodynamic and electrochemical measurements microscopies, respectively. To illustrate motivation for analysis, hypotheses correlations between parameters hemocompatibility polymers are briefly examined. applications examined methods illustrated by a number examples. These examples cellulose membranes (low-flux hemodialysis membranes) streaming potential inverse contact angle measurements. use spectroscopies (ATR-FTIR XPS) demonstrated considering optimization modification procedures vascular prostheses made from poly(tetrafluoroethylene). Furthermore, water-swollen scanning force microscopy shown. Finally, extended application physico-chemical analysis investigation protein adsorption considered. An example deals with in situ spectroscopic ellipsometry used study fibrinogen onto plasma-deposited hydrophobic fluoropolymer poly(ethyleneoxide)-grafted fluoropolymer,
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