探索酸纳米粒子形状对红细胞和血液凝固的影响
Weitang Sun1, Jiali Li2, Jingbin Zhong1
1Institute of Pediatrics, Guangzhou Women & Children's Medical Center, Guangzhou Medical University, China.
Nanomedicine (London, England)
|September 23, 2024
概括
无论是棒形还是球形的酸 (HAP) 纳米颗粒,都显示出良好的血液兼容性. 虽然球形HAP可能会增加白细胞数量,但这两种形式在生物应用中都被认为是安全的.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 血液学 血液学 血液学
背景情况:
- 酸 (HAP) 纳米颗粒被用于各种生物医学应用.
- 了解不同HAP纳米粒子形状的血液相容性对于安全的临床使用至关重要.
研究的目的:
- 评估棒形和球形HAP纳米颗粒对血,血小板和红细胞的影响.
- 为了比较不同HAP纳米粒子形态的体外和体内血液兼容性.
主要方法:
- 棒形和球形HAP纳米粒子的表征.
- 在HAP纳米颗粒与血,血小板和红细胞进行体外共培,以评估凝血和血液溶解.
- 在体内评估HAP纳米粒子对小鼠白细胞计数的影响,通过输血管和尾静脉注射.
主要成果:
- 球形的HAP显示对血小板的吸附性更大,而棒形的HAP则诱导更多的血液溶解.
- 这两种HAP形状在20毫米度的体外表现出良好的血液兼容性.
- 球形纳米HAP导致体内白细胞数量显著增加,表明潜在的毒性.
结论:
- 棒形和球形HAP纳米颗粒之间的血液兼容性差异是最小的,并且在安全范围内.
- 总的来说,酸纳米颗粒显示出出色的血液兼容性.
- 需要对球形纳米HAP的体内毒性进行进一步的研究.
更多相关视频
05:41Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications
Published on: February 23, 2017
19.2K
09:38A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time
Published on: February 14, 2017
13.7K
相关概念视频
01:22Formation of the Platelet Plug
5.2K
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
5.2K
01:30Anticoagulant Drugs: Low-Molecular-Weight Heparins
649
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...
649