在双极电极阵列上使用旋转电场的可变形细胞进行三维旋转
Yupan Wu1,2,3,4, Yuanbo Yue1, Haohao Zhang1
1School of Microelectronics, Northwestern Polytechnical University, Xi'an, 710072, PR China.
Lab on a chip
|January 26, 2024
概括
研究人员开发了一种使用电场进行3D细胞旋转的新方法. 这种技术允许精确控制细胞的方向和速度,使细胞分析和药物发现的新应用.
科学领域:
- 生物物理学的生物物理.
- 细胞生物学 细胞生物学
- 电气工程 电气工程
背景情况:
- 细胞的三维旋转对于生物学,医学和化学的各种应用至关重要.
- 现有的细胞操纵方法在控制3D方向方面缺乏精度和灵活性.
研究的目的:
- 引入一个多功能和可控制的方法,用于细胞和粒子的3D旋转.
- 展示该方法用于细胞定向,固定和介电性质分析的应用.
主要方法:
- 使用一个旋转电场应用于双极电极 (BPE) 阵列.
- 利用电旋转扭矩,诱导电荷电解体 (ICEO) 流量和介电泳来进行精确的控制.
- 分析内平面旋转的旋转光谱,以提取细胞介电性质.
主要成果:
- 成功证明了各种细胞类型的可控制的3D旋转,包括酵母和K562细胞.
- 实现了对细胞方向,旋转轴,速度和方向的精确控制.
- 基于ICEO的外平面旋转使垂直平面旋转能够实现,无论细胞的形状和大小如何.
- 证明了高通量,非破坏性细胞分析和药物发现的潜力.
结论:
- 开发的方法为3D细胞旋转提供了灵活,无接触和精确的方法.
- 这种技术为下游应用提供了可控制的细胞定向和固定.
- 这项研究为细胞分析和药物发现提供了一个快速而非破坏性的工具.
相关概念视频
Electron Microscope Tomography and Single-particle Reconstruction
Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Generation of Three-Phase Voltage
A three-phase AC generator has a rotor with a rotating magnet placed within the stator mounted with the stationary three-phase winding to generate three-phase voltages via mutual induction. These windings are evenly distributed around the inner circumference of the stator and are arranged 120 electrical degrees apart. Three-phase stator windings consist of three separate coils or groups of coils, known as phases, each connected in Y (star) configuration or Delta configuration.
As the rotor...
As the rotor...


