一种基于血液的海绵,具有抗肝素干扰,用于治疗无法控制的大规模出血
1Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, 210094, China; Key laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, 210094, China.
International journal of biological macromolecules
|August 28, 2024
概括
一种来自Hemoadhican (HD) 的新型止血海绵在与血液接触时迅速形成粘性泥. 这种创新材料提供了卓越的血液静止和生物安全性,为临床伤口管理提供了一个有前途的替代方案.
科学领域:
- 生物材料科学 生物材料科学
- 血液静止研究 血液静止研究
- 伤口愈合技术 伤口愈合技术
背景情况:
- 血红糖 (HD) 是一种外聚糖,由于其分支结构,具有显著的静血性质.
- 现有的静血剂往往需要交联剂,这增加了它们的制备和应用的复杂性.
研究的目的:
- 开发一种使用Hemoadhican (HD) 的新型,无交叉连接的静血海绵.
- 在临床前模型中评估基于HD的海绵的静血疗效和生物安全性.
主要方法:
- 超声波溶解和冷干燥被用来准备HD静血海绵.
- 研究了海绵在与血液接触时通过气结合形成粘粘泥的能力.
- 在老鼠,子,小鼠和猪模型中,血静性能与和凝海绵进行了比较,包括氨酸诱导出血.
主要成果:
- 在3秒内,HD海绵通过键自发与血液交叉连接,形成了抗压屏障.
- 这种海绵泥混合物通过物理屏障形成和对血液的疏水排斥,证明了有效的伤口密封.
- HD的刷状结构的拓纠增强了对组织的湿附着性.
- 在各种动物模型中,HD海绵的性能优于和凝海绵,即使在抗凝固药物受试者中也显示出出色的血液静止.
- 在体内实验证实了HD海绵的优良生物安全性.
结论:
- 这种HD海绵是一种安全且高效的快速静血材料.
- 它的独特特性,包括自发交叉连接和增强的粘附性,使其成为临床静血应用的有希望的替代品.
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