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Related Concept Videos

Two-dimensional Gel Electrophoresis01:22

Two-dimensional Gel Electrophoresis

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 as  cells...
Capillary Electrophoresis: Instrumentation01:20

Capillary Electrophoresis: Instrumentation

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...
Capillary Electrophoresis: Applications01:30

Capillary Electrophoresis: Applications

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,...
Electrophoresis: Overview01:20

Electrophoresis: Overview

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...

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Related Experiment Video

Updated: May 9, 2026

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow
09:45

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow

Published on: February 4, 2011

Cell pairing using a dielectrophoresis-based device with interdigitated array electrodes.

Mustafa Şen1, Kosuke Ino, Javier Ramón-Azcón

  • 1Graduate School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan.

Lab on a Chip
|July 26, 2013
PubMed
Summary
This summary is machine-generated.

This study introduces a novel chip device for efficiently pairing single cells of different types using dielectrophoresis. The technology enables rapid and controllable formation of cell pairs for diverse biological research applications.

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Area of Science:

  • Biotechnology
  • Cell Biology
  • Microfluidics

Background:

  • Precise control over cell-cell interactions is crucial for understanding biological processes.
  • Existing methods for pairing single cells can be low-throughput and lack precise control.

Purpose of the Study:

  • To develop a microfluidic device for high-throughput, controlled pairing of single cells of different types.
  • To leverage dielectrophoresis for efficient and rapid cell-pair formation.

Main Methods:

  • Fabrication of a chip device featuring an array of 900 gourd-shaped microwells.
  • Integration of interdigitated array (IDA) electrodes within the microwells.
  • Application of positive dielectrophoresis to trap and position individual cells.

Main Results:

  • Demonstrated successful trapping and pairing of single cells of different types within microwells.
  • Achieved rapid and efficient formation of a large number of cell pairs.
  • The IDA electrode configuration facilitated close proximity of paired cells.

Conclusions:

  • The developed chip device offers a powerful and scalable tool for controlled single-cell pairing.
  • This technology has significant potential for advancing research in cell-cell communication and interactions.
  • The device enables rapid generation of cell pairs for various biological applications.