心血管生物材料和医疗器械上的纤维素吸附
Achebe N O Nzulumike1,2, Esben Thormann1
1Department of Chemistry, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
ACS applied bio materials
|June 27, 2023
概括
不钢和聚合物显示纤维素吸附率较低,降低了与血液接触的医疗器械血栓形成的风险. 纤维素形态在金属和聚合物表面上有所不同.
科学领域:
- 生物材料科学 生物材料科学
- 心血管工程 心血管工程
- 表面化学 表面化学
背景情况:
- 血管中的医疗器械由于蛋白质吸附和凝块形成,存在血栓形成的风险.
- 纤维素吸附和聚合启动了表面诱导的凝血,这对生物材料设计构成了挑战.
- 尽量减少血栓并发症需要了解表面依赖性纤维素原征集.
研究的目的:
- 描述心血管生物材料的血栓生成性质.
- 量化表面依赖的纤维素素吸附和纤维素形成.
- 分析不同生物材料和医疗器械上的纤维素形态.
主要方法:
- 在各种金属和聚合物生物材料上量化纤维素吸附.
- 分析了纤维素的形成和由此产生的形态.
- 使用血管导线作为凝固基质来评估设备特定的吸附.
主要成果:
- 与其他材料相比,不钢和无形聚合物表现出显著较低的纤维素素招募率.
- 纤维素在金属表面形成了独特的纤维结构,在聚合物表面形成了碎形分支结构.
- 导线上的纤维素吸附取决于暴露的表面积,与不钢形态相关.
结论:
- 不钢和无形聚合物是心血管器件的有希望的生物材料,因为纤维素吸附率降低.
- 了解纤维素形态学,可以了解设备表面相互作用和血栓性.
- 医疗器械的表面特性和暴露区域会影响血栓形成的风险.
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