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IN VITRO EVALUATION OF PLATELET ADHESION ON POLYURETHANES FILMS AND MEMBRANES

机译:聚氨酯膜和膜对血小板粘附的体外评价

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The in vitro response of human platelets was studied upon adherence to films/membranes of polyurethanes with different soft segments: polyurethane with segment lactate comparatively with poly(esterurethane) precursor, in order to promote poly(lactateurethane) as candidate for limit blood-contacting materials. For optimizing the material, the surface energy was increased by dielectric barrier discharge in He and the results were compared with those of pristine films/membranes. In vitro platelet adhesion and the degree of hemolysis were determined by preliminary blood compatibility assessment, using the direct contact method, and the morphology of adhering platelets was studied by scanning electron microscopy. The most hydrophilic surfaces appear to cause least activation and aggregation of platelets
机译:研究人血小板的体外反应,方法是粘附于具有不同软链段的聚氨酯的膜/膜上:与乳酸链段的聚氨酯相比,与聚(氨基甲酸酯)前体相比,以促进聚(乳酸酯)作为限制血液接触材料的候​​选物。为了优化材料,通过He中的介电势垒放电增加了表面能,并将结果与​​原始膜/膜的结果进行了比较。使用直接接触法,通过初步的血液相容性评估,确定体外血小板的粘附性和溶血度,并通过扫描电子显微镜研究粘附的血小板的形态。最亲水的表面似乎导致血小板的活化和聚集最少

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