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PubMed · 140169

Interactions between segmented polyurethane surfaces and the plasma protein fibrinogen.

S I Stupp·J W Kauffman·S H Carr
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Abstract

Surfaces of a segmented polyurethane were varied by casting on poly(ethylene terephthalate) (PET) and glass substrates, and were characterized through infrared-attenuated total-reflection spectroscopy (ATR). Surfaces cast on glass substrates showed a higher content of polyether segments, whereas those cast on PET contained a higher relative concentration of aromatic segments. Adsorption, and possible conformational changes of fibrinogen, were found to be more substantial on polymer surfaces having a higher content of polyether segments. It is concluded that the relatively good blood compatibility of segmented polyurethanes is partly due to the presence of peptide-like bonds on aromatic segments.

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AdsorptionChemical PhenomenaChemistryFibrinogenGlassPolyethylene TerephthalatesPolyurethanesProtein ConformationSpectrophotometry, InfraredSurface PropertiesJournal Article

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S I Stupp, J W Kauffman, S H Carr. 1977. Interactions between segmented polyurethane surfaces and the plasma protein fibrinogen.. https://doi.org/10.1002/jbm.820110209

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