6533b7d1fe1ef96bd125d837
RESEARCH PRODUCT
Wet-chemical approach for the cell-adhesive modification of polytetrafluoroethylene
Manfred DahmChristian-f VahlMatthias Gabrielsubject
Umbilical VeinsMaterials scienceSmall diameterPolymersSurface PropertiesCellCell Culture TechniquesBiomedical EngineeringBioengineeringNaphthalenesBiomaterialschemistry.chemical_compoundCell AdhesionmedicineHumansComposite materialPolytetrafluoroethylenechemistry.chemical_classificationPolytetrafluoroethyleneSodiumEndothelial CellsPolymerAdhesionCross-Linking Reagentsmedicine.anatomical_structureChemical engineeringchemistryCell cultureAdsorptionAdhesiveOligopeptidesEndothelial cell growthdescription
Polytetrafluoroethylene (PTFE), a frequently utilized polymer for the fabrication of synthetic vascular grafts, was surface-modified by means of a wet-chemical process. The inherently non-cell-adhesive polymer does not support cellular attachment, a prerequisite for the endothelialization of luminal surface grafts in small diameter applications. To impart the material with cell-adhesive properties a treatment with sodium-naphthalene provided a basis for the subsequent immobilization of the adhesion promoting RGD-peptide using a hydroxy- and amine-reactive crosslinker. Successful conjugation was shown with cell culture experiments which demonstrated excellent endothelial cell growth on the modified surfaces.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-04-20 | Biomedical Materials |