Hemocompatibility evaluation in vitro of small-caliber expanded polytetrafluoroethylene vessel with silk fibroin coating sulfonated by low temperature plasma / 南方医科大学学报
Journal of Southern Medical University
;
(12): 2100-2103, 2010.
Article
Dans Chinois
| WPRIM
| ID: wpr-330772
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the hemocompatibility of a small-caliber expanded polytetrafluoroethylene vessel with silk fibroin coating sulfonated by low temperature plasma treatment.</p><p><b>METHODS</b>The composite blood vessel was prepared by first coating the small-caliber expanded polytetrafluoroethylene vessel with silk fibroin followed by sulfonation by low temperature plasma treatment. After hemolysis test in vitro, dynamic coagulation time test, blood platelet adhesion test, and recalcification time test were performed to evaluate the hemocompatibility of the composite blood vessel.</p><p><b>RESULTS</b>Scanning electronic microscopy revealed obvious platelets adhesion on the conventional artificial (control) vessel, which seldom occurred on the composite vessel. The curve of absorbance-clotting time of the composite vessel declined more slowly than that of the control vessel. The recalcification time of the composite blood vessel averaged 603 s, significantly longer than that of the control vessel (480 s, P = 0.000).</p><p><b>CONCLUSION</b>The composite blood vessel has good antithrombotic activity and hemocompatibility as a promising vascular prosthesis.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Polytétrafluoroéthylène
/
Acides sulfoniques
/
Test de matériaux
/
Prothèse vasculaire
/
Chimie
/
Basse température
/
Matériaux revêtus, biocompatibles
/
Gaz plasmas
/
Fibroïne
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Journal of Southern Medical University
Année:
2010
Type:
Article
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