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相关概念视频

Flow Cytometry01:23

Flow Cytometry

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The development of flow cytometry techniques began in 1934 with initial attempts by Andrew Moldavan, a bacteriologist who counted the cells in a flowing capillary system. Moldavan pumped cells through a capillary tube focused under a microscope for visualization. The invention of photometry allowed the measurement of differentially-stained cells, and Louis Kamentsky developed the first multiparameter flow cytometer in 1965 to identify and count the cancer cells in cervical tissue specimens.
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相关实验视频

Updated: Jun 6, 2025

Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements
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单细胞机电切割流变形性细胞计单细胞机电切割流变形性细胞计

Junyu Chen1, Xueping Zou1, Daniel C Spencer1

  • 1School of Electronics and Computer Science, and Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK.

Microsystems & nanoengineering
|November 21, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的微流体技术,用于单细胞电气和机械性能的高速表征. 剪流变形性细胞计方法与光学测量提供了很好的相关性.

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A Microfluidic Technique to Probe Cell Deformability
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科学领域:

  • 细胞生物物理学 细胞生物物理学
  • 微流体学 微流体学
  • 生物技术是生物技术.

背景情况:

  • 细胞结构决定了独特的介电和机械特性,作为表型标记物.
  • 区分细胞种群需要方法来表征这些内在的特性.

研究的目的:

  • 开发一种高通量微流体技术,同时对单细胞电气和机械性能进行表征.
  • 建立基于电机分析的细胞种群分析的新方法.

主要方法:

  • 在微流体通道中利用非接触剪流变形性细胞计.
  • 通过粘弹性流体剪切在细胞变形过程中沿直角轴测量电阻.
  • 与细胞形状变化的光学测量相关的电变形性.

主要成果:

  • 实现了每秒大约100个细胞的吞吐量.
  • 在光学和电学决定的细胞变形性之间证明了良好的相关性.
  • 验证了使用受透冲击,交叉链接和细胞骨破坏的细胞的系统性能.

结论:

  • 开发的剪流变形性细胞计是一种简单,高速和准确的工具,用于表征单细胞电机性能.
  • 这种技术为区分基于其内在生物物理标记的细胞群提供了一种新的方法.
  • 该系统的简单性和高吞吐量使其适用于各种细胞分析应用,而不需要外流量或高速成像.