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相关概念视频

Non-equilibrium in the Cell01:16

Non-equilibrium in the Cell

An important concept in studying metabolism and energy is that of chemical equilibrium. Most chemical reactions are reversible. They can proceed in both directions, releasing energy into their environment in one direction, and absorbing it from the environment in the other direction. The same is true for the chemical reactions involved in cell metabolism, such as the breaking down and building up of proteins into and from individual amino acids, respectively. Reactants within a closed system...
Tissue Homogenization and Cell Lysis01:32

Tissue Homogenization and Cell Lysis

Tissue homogenization involves disintegrating tissue architecture and lysing cells, and is an early step in isolating and analyzing cellular components. The method used for homogenization depends on the sample type, the amount of sample available, the analyte to be obtained, and the sensitivity of the method. These methods are broadly classified as mechanical and non-mechanical methods.
Mechanical methods of tissue homogenization
These methods rely on applying external physical force to disrupt...

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Silicon Microchips for Manipulating Cell-cell Interaction
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减少惰性材料,以在微生理系统中实现最佳的细胞-细胞和细胞-矩阵相互作用.

Claudia Olaizola-Rodrigo1,2, Héctor Castro-Abril1,3, Ismael Perisé-Badía1,4

  • 1Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, Spain.

Biomimetics (Basel, Switzerland)
|May 24, 2024
PubMed
概括

微流体器官芯片设备尽量减少惰性材料,以增强直接的细胞-细胞和细胞-矩阵相互作用,以获得更现实的体外组织模型.

关键词:
惰性物质是一种惰性物质.大型/微型孔膜 膜 膜 膜 膜 膜 膜网格 网格 网格 网格 网格 网格微流体设备的微流体设备微生理系统 (MPS) 是指微生理系统.移民 移民 迁移 迁移在芯片上的器官 (OoC)球形状的球形体是指球形状的球体.

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科学领域:

  • 生物技术是生物技术.
  • 组织工程是组织工程.
  • 微流体学 微流体学

背景情况:

  • 器官芯片 (OoC) 设备旨在在体外模仿人类组织,但受到阻碍细胞相互作用的惰性材料的限制.
  • OoC设备中的当前膜阻碍营养的流动和直接的细胞与细胞/细胞矩阵接触,可能导致非生理细胞反应.

研究的目的:

  • 设计微流体装置,尽量减少惰性材料,从而最大限度地提高直接的细胞矩阵和细胞细胞相互作用.
  • 提高体外组织模型的生物模拟和生物相关性.

主要方法:

  • 开发了两种微流体芯片设计:一种是用于细胞与细胞相互作用的150微米尼龙网,另一种是用于细胞与细胞矩阵接触的1毫米巨孔膜.
  • 在第二个芯片设计中利用了原体水凝沉积.
  • 进行生物验证,包括细胞迁移,细胞与细胞相互作用测定,以及从细胞或球形上皮质的发育.

主要成果:

  • 开发的微流体装置成功地将惰性材料接口降到最低.
  • 观察到增强的直接细胞-细胞和细胞-矩阵相互作用,验证了设计的有效性.
  • 生物分析证实了这些设备支持细胞迁移,相互作用和组织发育的能力.

结论:

  • 在微流体芯片中最大限度地减少惰性材料对于创建更准确的体外模型至关重要.
  • 新的微流体设计促进了直接的细胞相互作用,推进了器官芯片技术.
  • 这些进步有助于为药物发现和研究开发更多生物仿真体外模拟.