Suppr超能文献

用于精确快速止血应用的声响应智能纳米脂质体

Sono-responsive smart nanoliposomes for precise and rapid hemostasis application.

作者信息

Zhang Qian, Zhu Lichao, Wang Kaiyang, Chen Song, Zhang Yijiong, Song Wei, Qin Long, Liu Xijian, Luo Yu, Wan Jian

机构信息

Department of Emergency and Critical Care Medicine, Shanghai Pudong New Area People's Hospital No. 490 South Chuanhuan Road Shanghai 201299 P. R. China

Shanghai Engineering Technology Research Center for Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Noncoding RNA, Institute for Frontier Medical Technology, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science No. 333 Longteng Road Shanghai 201620 P. R. China

出版信息

RSC Adv. 2024 May 13;14(22):15491-15498. doi: 10.1039/d3ra08445k. eCollection 2024 May 10.

Abstract

Massive hemorrhage caused by injuries and surgical procedures is a major challenge in emergency medical scenarios. Conventional means of hemostasis often fail to rapidly and efficiently control bleeding, especially in inaccessible locations. Herein, a type of smart nanoliposome with ultrasonic responsiveness, loaded with thrombin (thrombin@liposome, named TNL) was developed to serve as an efficient and rapid hemostatic agent. Firstly, the hydrophilic cavities of the liposomes were loaded onto the sono-sensitive agent protoporphyrin. Secondly, a singlet oxygen-sensitive chemical bond was connected with the hydrophobic and hydrophilic ends of liposomes in a chemical bond manner. Finally, based on the host guest effect between ultrasound and the sono-sensitizer, singlet oxygen is continuously generated, which breaks the hydrophobic and hydrophilic ends of liposome fragments, causing spatial collapse of the TNL structure, swiftly releases thrombin loaded in the hydrophilic capsule cavity, thereby achieving accurate and rapid local hemostasis (resulted in a reduction of approximately 67% in bleeding in the rat hemorrhage model). More importantly, after thorough assessments of biocompatibility and biodegradability, it has been confirmed that TNL possesses excellent biosafety, providing a new avenue for efficient and precise hemostasis.

摘要

由损伤和外科手术引起的大量出血是紧急医疗场景中的一项重大挑战。传统的止血方法往往无法快速有效地控制出血,尤其是在难以触及的部位。在此,一种具有超声响应性的智能纳米脂质体被开发出来,其负载有凝血酶(凝血酶@脂质体,命名为TNL),用作高效快速的止血剂。首先,脂质体的亲水腔装载上超声敏化剂原卟啉。其次,一种单线态氧敏感化学键以化学键方式连接脂质体的疏水端和亲水端。最后,基于超声与超声敏化剂之间的主客体效应,持续产生单线态氧,其破坏脂质体片段的疏水端和亲水端,导致TNL结构的空间塌陷,迅速释放亲水胶囊腔内装载的凝血酶,从而实现精确快速的局部止血(在大鼠出血模型中出血减少约67%)。更重要的是,在对生物相容性和生物降解性进行全面评估后,已证实TNL具有出色的生物安全性,为高效精确止血提供了一条新途径。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ee65/11090014/9e0f1bc982a9/d3ra08445k-s1.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验