响应声波的智能纳米脂质体,用于准确和快速的静血应用
Qian Zhang1, Lichao Zhu2, Kaiyang Wang2
1Department of Emergency and Critical Care Medicine, Shanghai Pudong New Area People's Hospital No. 490 South Chuanhuan Road Shanghai 201299 P. R. China wanjian@shpdph.com.
RSC advances
|May 14, 2024
概括
研究人员开发了装有血素 (TNL) 的智能纳米脂质体,用于快速静血. 超声波触发TNL释放血栓,显著减少出血,并显示出非常好的生物安全性用于紧急医疗.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 紧急医疗 紧急医疗
背景情况:
- 由于受伤和手术造成的大量出血在紧急医疗护理中提出了重大挑战.
- 目前的静血方法往往不足以快速有效地控制出血,特别是在难以到达的地区.
研究的目的:
- 开发一种高效,快速的静血剂,使用对超声波有反应的智能纳米脂质体.
- 创建一种新型的血栓输送系统,能够实现精确和局部血静.
主要方法:
- 开发超声响应的纳米脂质体,载有血栓素 (thrombin@liposome,TNL).
- 在脂质体腔体内,将原波林作为对音响敏感的物质纳入.
- 使用超声波触发单片氧生成,导致脂质体结构崩和血栓释放.
主要成果:
- 开发的TNL系统证明了快速而准确的局部血液静止.
- 在大鼠出血模型中观察到出血显著减少,约为67%.
- 彻底的生物相容性和生物降解性评估证实了TNL的优良生物安全性.
结论:
- 智能纳米脂质体在紧急情况下为高效和精确的血液静止提供了一个有希望的新途径.
- 从TNL中释放超声触发的血栓素提供了一种有针对性的方法来控制大规模出血.
- 优秀的TNL生物安全概况支持其潜在的临床应用.
相关概念视频
Anticoagulant Drugs: Low-Molecular-Weight Heparins
686
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
686
Introduction to Hemostasis
7.4K
Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...
7.4K


