基于希尔伯特曲线的微血管网络,用于厚组织中营养物质的运输
Zhenxing Wang1,2,3,4, Xuemin Liu5, Xuetao Shi1,2,3,4
1National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.
Regenerative biomaterials
|October 1, 2024
概括
本研究介绍了希尔伯特曲线微血管网络,以改善3D组织模型中的营养物质输送. 2°希尔伯特结构在大量组织工程应用中增强了营养的一致性和细胞活力.
科学领域:
- 生物医学工程 生物医学工程
- 组织工程是组织工程.
- 再生医学是一种再生医学.
背景情况:
- 目前的三维 (3D) 组织模型和器官体有着不均的营养分布,这限制了它们在医学研究中的有用性.
- 在厚厚的体外组织模型中,营养供应效率低下会导致细胞死亡和功能降低.
研究的目的:
- 在3D组织模型中使用希尔伯特曲线设计新的微血管网络,以增强营养的分布.
- 验证这些网络在改善厚组织结构中的营养均性和细胞活力方面的有效性.
- 探索这些网络的可扩展性,用于构建大型生物模型.
主要方法:
- 利用3D生物打印来制造基于不同级别的希尔伯特曲线的微血管网络.
- 采用数值模拟和实验验证,以评估营养成分的分布和均性.
- 使用工程微血管网络研究了更大的组织结构的组装.
主要成果:
- 基于希尔伯特曲线的微血管网络在3D组织模型中改善了营养物质的分布.
- 2°希尔伯特微血管结构在营养均性和空间利用方面表现出卓越的表现.
- 在具有2°希尔伯特网络的组织模型中观察到细胞死亡区域的减少和增强的活力.
- 通过使用2°希尔伯特微血管网络证明了使用更大的组织结构的成功组装.
结论:
- 2°希尔伯特微血管结构在确保大量体外组织模型中提供足够的营养素方面非常有效.
- 这项创新显著提高了工程组织的可行性和功能性,克服了当前模型的局限性.
- 开发的微血管网络为先进的组织工程,再生医学和未来的临床应用提供了有希望的基础.
相关概念视频
Transport Across the Golgi
5.2K
While it is unclear how molecules move between adjacent Golgi cisternae, it is apparent that the molecules move from cis- cisterna, the entry face, to the trans- cisterna, the exit face. Experiments initially suggested vesicles that bud from one cisterna and fuse with the next cisterna to transport proteins between the cisternae. This vesicular transport model describes the Golgi apparatus as a relatively static structure with a unique enzyme composition in each cisterna. Molecules are...
5.2K
Structure of Blood Vessels
11.8K
Blood is circulated throughout the human body through a network of blood vessels called the circulatory system. This system includes arteries that transport blood from the heart to various body parts. These arterial pathways divide into smaller vessels until they reach the arterioles, which further split into capillaries. It is within these minuscule capillaries that the exchange of nutrients and waste products takes place. After this exchange, the blood is collected by venules, which fuse to...
11.8K
Capillaries and Their Types
9.1K
Capillaries, a crucial constituent of the circulatory system, are diminutive vessels with a diameter between 5–10 micrometers, accommodating perfusion to the tissues through the phenomenon known as microcirculation. Through their permeable walls, consisting of an endothelial layer ensconced by a basement membrane and sporadically dispersed smooth muscle fibers, the exchange of substances between the blood and the interstitial fluid becomes plausible. Variance in wall composition exists,...
9.1K
Capillary Beds
6.5K
Capillary beds are networks of tiny blood vessels that play a crucial role in the circulatory system. These beds are where the exchange of gases, nutrients, and waste products occurs between the blood and surrounding tissues. Each capillary bed consists of numerous capillaries, which are the smallest blood vessels in the body, typically only one cell-thick. This thinness allows for the efficient diffusion of substances.
Capillaries connect arterioles, small branches of arteries, to venules,...
Capillaries connect arterioles, small branches of arteries, to venules,...
6.5K
Blood Supply to the Digestive System
6.6K
Splanchnic circulation refers to the network of blood vessels that supply and drain blood from the abdominal organs involved in digestion, including the stomach, liver, pancreas, intestines, and spleen. This circulation delivers essential nutrients and oxygen while removing waste products from these organs.
Blood Supply to the Digestive System: The splanchnic circulation involves three main arteries: the celiac artery (also known as the celiac trunk) and the superior and inferior mesenteric...
Blood Supply to the Digestive System: The splanchnic circulation involves three main arteries: the celiac artery (also known as the celiac trunk) and the superior and inferior mesenteric...
6.6K
Anatomy of Blood Vessels
4.4K
The vascular system, an integral part of the circulatory system, comprises various blood vessels that play crucial roles in maintaining the body's homeostasis. These blood vessels form a complex and efficient circulatory network. The three primary categories of blood vessels are the arteries, veins, and capillaries.
Arteries
Arteries circulate oxygenated blood from the heart, except the pulmonary artery, which transports deoxygenated blood to the lungs. Large arteries, such as the aorta,...
Arteries
Arteries circulate oxygenated blood from the heart, except the pulmonary artery, which transports deoxygenated blood to the lungs. Large arteries, such as the aorta,...
4.4K


