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Related Concept Videos

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...
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,...
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...
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...
Flow Cytometry01:23

Flow Cytometry

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.
In...
DNA Agarose Gel Electrophoresis02:35

DNA Agarose Gel Electrophoresis

Agarose gel electrophoresis is a laboratory technique commonly used to separate DNA fragments by size. However, it can also be used to isolate and purify DNA fragments using a gel extraction protocol.
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...

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Updated: Jul 2, 2026

Amplification of Escherichia coli in a Continuous-Flow-PCR Microfluidic Chip and Its Detection with a Capillary Electrophoresis System
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Amplification of Escherichia coli in a Continuous-Flow-PCR Microfluidic Chip and Its Detection with a Capillary Electrophoresis System

Published on: November 21, 2023

[Free flow electrophoresis and its application development].

Feng Qu1, Bin Han, Yulin Deng

  • 1School of Life Science & Technology, Beijing Institute of Technology, Beijing 100081, China. qufengqu@bit.edu.cn

Se Pu = Chinese Journal of Chromatography
|August 30, 2008
PubMed
Summary
This summary is machine-generated.

Free flow electrophoresis (FFE) is a versatile separation technique. This review covers FFE principles, equipment, and diverse applications in analyzing ions, molecules, particles, and cells.

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Amplification of Escherichia coli in a Continuous-Flow-PCR Microfluidic Chip and Its Detection with a Capillary Electrophoresis System
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Area of Science:

  • Analytical Chemistry
  • Biochemistry
  • Separation Science

Context:

  • Free flow electrophoresis (FFE) is an advanced separation technique.
  • Understanding FFE principles and equipment is crucial for its effective application.
  • Diverse analytical challenges require sophisticated separation methods.

Purpose:

  • To introduce the fundamental principles and separation modes of Free Flow Electrophoresis (FFE).
  • To discuss the factors influencing FFE performance and the evolution of its equipment.
  • To review the recent applications of FFE across various scientific domains.

Summary:

  • This review details the core concepts, operational parameters, and technological advancements in Free Flow Electrophoresis (FFE).
  • It explores FFE's utility in separating a wide range of analytes, including ions, small molecules, particles, peptides, proteins, cells, and organelles.
  • The review highlights FFE's role in enantiomeric separations, microchip devices, and proteomics, supported by 73 cited references.

Impact:

  • Provides a comprehensive overview of Free Flow Electrophoresis (FFE) for researchers.
  • Highlights the broad applicability and potential of FFE in diverse analytical and biological fields.
  • Serves as a valuable resource for advancing separation science and related disciplines.