氧纳米载体用于改善心脏的解决方案性能:物理化学表征
Maria Tannous1,2,3, Gjylije Hoti1, Francesco Trotta1
1Department of Chemistry, University of Turin, 10125 Turin, Italy.
International journal of molecular sciences
|June 28, 2023
概括
释放氧气的纳米海绵增强了器官移植的心脏症解决方案. 循环尼格罗斯-尼格罗斯基纳米海绵显示出优异的氧气输送,延长了心脏保存时间.
科学领域:
- 生物材料科学 生物材料科学
- 心血管研究研究心血管研究
- 纳米技术 纳米技术
背景情况:
- 氧化心脏解决方案 (CS) 改善心脏骤停期间的心肌保护,但提供有限的持续时间.
- 纳米载体正在探索持续的氧气输送,以克服当前治疗策略的局限性.
- 器官移植需要有效的方法来保存器官在缺血期间.
研究的目的:
- 开发和评估纳米载体在心脏解决方案中长时间释放氧气.
- 为了增强心肌保护和器官移植的器官保存时间.
- 研究不同纳米载体配方的氧气储存和释放能力.
主要方法:
- 制备纳米载体配方,包括原生α-cyclodextrin (αCD),基于αCD的纳米海绵 (αCD-NSs),原生循环尼格罗西尔-尼格罗斯 (CNN) 和基于CNN的纳米海绵 (CNN-NSs).
- 评估氧气释放动力学和度从纳米载体在国家卫生研究院 (NIH) CS在37°C.
- 纳米载体的氧气储存能力和在低温下释放配置文件的物理化学表征.
主要成果:
- 与原生αCD和CNN相比,纳米海绵 (NSs) 在24小时内释放的氧气更高.
- 在12小时内,CNN-NSs在37°C的温度下在NIH CS中实现了最高的氧气度 (8.57 mg/L).
- 与其他配方相比,NSs表现出较高的氧气保留量 (1.30 g/L),表明长时间释放潜力.
结论:
- 含氧纳米载体,特别是CNN-NSs,为心脏解决方案中持续提供氧气提供了一个有希望的方法.
- 这些纳米载体可以在低温储存期间显著延长肌心保护和器官活力的持续时间.
- 开发的纳米载体配方适用于在移植过程中在扩张和运输过程中保存器官.
关键词:
心脏病的解决方案循环的尼格罗斯-尼格罗斯.低温症 低温症 是一个这些是纳米海绵.器官的扩张 器官的扩张器官移植器官移植器官移植器官移植输送氧气 输送氧气 提供氧气长时间释放的释放.α-循环环氧化物.更多相关视频
06:57Rapid, Scalable Assembly and Loading of Bioactive Proteins and Immunostimulants into Diverse Synthetic Nanocarriers Via Flash Nanoprecipitation
Published on: August 11, 2018
7.9K
10:16Targeted Plasma Membrane Delivery of a Hydrophobic Cargo Encapsulated in a Liquid Crystal Nanoparticle Carrier
Published on: February 8, 2017
7.6K
相关概念视频
Oxygen Transport in the Blood
2.9K
Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
2.9K
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
270
Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
270
