生物启发的智能纳米凝用于快速蓝色激光激活的血液静止在胃肠道出血
Ruijue Dan1, Yu Huang1, Shali Tan1
1Department of Gastroenterology, Xinqiao Hospital, NO.183, Xinqiao Street, Chongqing, 400037, China.
Advanced materials (Deerfield Beach, Fla.)
|June 4, 2025
概括
果启发的纳米凝为胃肠道出血 (GIB) 提供快速,稳定的血液静止. 这种新型生物材料很快就会激活,即使在患有凝血障碍的患者中也是如此,为严重出血病例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
- 纳米技术 纳米技术
- 胃肠病学 胃肠病学
背景情况:
- 胃肠道出血 (GIB) 带来了重大的临床挑战,特别是在凝血受损的患者中.
- 现有的静血剂,如血栓素,在消化道的恶劣环境中具有局限性.
- 目前的治疗方法与严重的失血和凝血障碍作斗争.
研究的目的:
- 开发一种新,高效,机械稳定的静血剂,用于控制局部胃肠道出血 (GIB).
- 为了创建一个果灵感的纳米凝系统,以增强血栓的输送和激活.
- 评估纳米凝在具有挑战性的出血情景和患者群体中的有效性.
主要方法:
- 合成具有辐射纤维结构的果类纳米二氧化,用于血栓荷载.
- 用GelMA涂层纳米,形成一个稳定的纳米凝网络.
- 在内镜过程中使用蓝色激光激活纳米凝.
- 在微型猪模型中进行体外和体内测试,模拟胃肠道出血,包括肝硬化患者的血液.
主要成果:
- 智能纳米凝在5秒内实现了快速凝血,即使是在患有凝血障碍的患者中.
- 形成的血块表现出高稳定性,抵御消化道的环境,并防止二次出血.
- 双网络系统在各种胃肠道出血模型中表现出强大的粘附和有效的血静.
结论:
- 果灵感的智能纳米凝提供了一个具有成本效益和高效的解决方案,用于胃肠道出血 (GIB) 的局部血静.
- 激光激活的双网络系统提供快速,稳定的血块形成,解决当前治疗方法的局限性.
- 这项技术显示出严重的GIB管理的巨大潜力,特别是在患有凝血缺陷的患者中.
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