基托桑/氧化纤维素复合纳米纤维海绵:一种快速有效的血液静止策略,用于非压缩性出血
Zhan Zhang1, Zhiyuan Lin1, Chenglong Yu2
1Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, 201620 Shanghai, China; Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China.
Carbohydrate polymers
|May 14, 2025
概括
一种新的纳米纤维止血海绵 (CT@GP-HAc) 能够有效地阻止在深层,不规则的伤口中出血. 这种先进的材料独立于身体的凝血机制工作,为严重出血提供了一个有希望的解决方案.
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
- 纳米技术应用 纳米技术应用
背景情况:
- 非压缩性出血性伤口在创伤护理中存在重大挑战,原因是严重出血和复杂的形态.
- 传统的止血剂往往证明对于在战斗和大规模伤亡事件中遇到的深度,不规则的伤害是不够的.
研究的目的:
- 开发和评估一种新型的纳米纤维止血海绵 (CT@GP-HAc) 用于管理不可压缩的出血伤口.
- 评估CT@GP-HAc海绵的静血效果,凝血独立性和生物相容性.
主要方法:
- 使用TEMPO氧化纤维素纳米纤维和酸盐纳米纤维制造CT@GP-HAc海绵,并与genipin进行交联.
- 在体外评估包括血液吸收,凝血因子招募和与商业血静止剂 (iRegene® GEL) 的比较.
- 在体外凝血试验 (PT,APTT,TT) 和生物相容性测定 (血液溶解,细胞毒性).
- 在体内研究,以评估静血性能在减少血液损失和时间静血.
主要成果:
- 与对照组相比,CT@GP-HAc海绵在全血凝固指数,减少凝固时间和增强红细胞和血小板粘附方面表现优越.
- 发现静血作用独立于人类的凝血级联,通过PT,APTT和TT测试得到证实.
- 生物相容性研究显示出非常低的血液溶解速率和没有细胞毒性.
- 在体内研究验证了海绵能够显著减少血液损失和缩短血液静止时间的能力.
结论:
- CT@GP-HAc是一种新,有效的静血材料,具有出色的形状记忆和对深度,不规则的伤口的快速静血能力.
- 其独特的微纳米复合结构和凝血独立机制使其适合广泛的患者群体,包括患有凝血障碍的人.
- 已证明的生物相容性和体内疗效将CT@GP-HAc定位为临界出血场景的有前途的下一代静血剂.
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