相关实验视频
Updated: Jul 19, 2025

08:17
Electrophoretic Separation of Proteins
Published on: June 12, 2008
33.7K
绝缘移动波电泳运动的电泳
Raúl Fernández-Mateo1, Víctor Calero2, Hywel Morgan1
1School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, United Kingdom.
Physical review. E
|August 16, 2023
概括
本研究介绍了绝缘移动波电泳 (i-TWE),这是一种使用在微柱周围旋转电场来移动微流体中的带电粒子的新方法. 实验结果与理论预测密切匹配,验证了这种对粒子操纵的新方法.
科学领域:
- 微流体学 微流体学
- 结合体科学 结合体科学
- 电泳术是一种电泳术.
背景情况:
- 旅行波电泳 (TWE) 对于处理微流体器件中带电的体粒子至关重要.
- 标准的TWE依赖于电极阵列来产生特定的电场.
- 现有的方法在有效生成和控制这些领域方面存在局限性.
研究的目的:
- 提出和研究一种用于产生移动波电场的替代方法.
- 引入和定义绝缘移动波电泳 (i-TWE).
- 通过实验验证i-TWE现象并与理论模型进行比较.
主要方法:
- 在微通道内的圆柱状绝缘微柱周围施加旋转电场.
- 使用微流体技术进行粒子操纵和表征.
- 进行粒子漂移速度的实验测量.
主要成果:
- 旋转的电场成功诱导了移动波模式,导致粒子在微柱周围漂移.
- 实验粒子速度与理论预测有很好的一致性.
- 电透对通道壁的影响被发现是一个重要的因素.
结论:
- 绝缘移动波电泳 (i-TWE) 为产生移动波电场提供了一种新方法.
- 这种方法为微流体学中的颗粒操纵提供了传统TWE的可行替代方案.
- 这些发现凸显了考虑电透效应对于准确建模的重要性.
更多相关视频
相关概念视频
Capillary Electrophoresis: Instrumentation
263
Capillary electrophoresis instrumentation typically consists of several key components. A high-voltage power supply generates the electric field necessary for the separation by connecting to an anode (the positively charged electrode) and a cathode (the negatively charged electrode) located in buffer reservoirs at each end of the capillary tube. The system includes a sample vial, a fused silica capillary tube coated with polyimide for mechanical strength through which the sample components...
263
Electrophoresis: Overview
2.1K
Electrophoresis is a powerful analytical separation technique that relies on the differential migration of charged species when subjected to an electric field. The core strength of electrophoresis lies in its ability to separate high-molecular-weight species in complex mixtures. It has found widespread use in biochemistry, molecular biology, and analytical chemistry, allowing the separation of compounds like amino acids, nucleotides, carbohydrates, and proteins with excellent resolution.
There...
There...
2.1K
Two-dimensional Gel Electrophoresis
6.1K
Two-dimensional gel electrophoresis is a high-resolution protein separation method first introduced by O' Farrell and Klose in 1975. This method involves protein separation by two dimensions, mass and charge, making it more accurate than one-dimensional gel electrophoresis.
The first dimension separation uses the isoelectric focusing or IEF technique performed on immobilized pH gradient (IPG) strips that separate proteins according to their isoelectric points.
Biological samples, such...
The first dimension separation uses the isoelectric focusing or IEF technique performed on immobilized pH gradient (IPG) strips that separate proteins according to their isoelectric points.
Biological samples, such...
6.1K
Capillary Electrophoresis: Applications
435
Capillary electrophoretic separations offer various modes, each with unique applications. These modes include capillary zone electrophoresis, capillary gel electrophoresis, capillary array electrophoresis, capillary isoelectric focusing, capillary isotachophoresis, micellar electrokinetic chromatography, and capillary electrochromatography.
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
435
Ion-Exchange Chromatography
581
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
581
Traveling Waves: Lossless Lines
158
The provided content explores the behavior of traveling waves on single-phase lossless transmission lines. It begins with a single-phase two-wire lossless transmission line of length Δx, characterized by a loop inductance LH/m and a line-to-line capacitance C F/m. These parameters result in a series inductance LΔx and a shunt capacitance CΔx.
158

