Microfluidic Electrophoresis
Microfluidic Electrophoresis - Related Videos
10:35
Studies of Bacterial Chemotaxis Using Microfluidics - Interview
0 Views •
Cited by 1 •
2007
04:21
Microfluidic Capillary Electrophoresis for Fragment Sizing of PCR Products: A Microchip-Based Electrophoretic Separation Technique to Separate DNA Fragments Based on Size
0 Views •
2025
This video describes the microfluidic capillary electrophoresis technique to separate PCR amplicons based on their size. This technique helps in fragment sizing using fluorescent dyes and standard molecular size markers.
08:50
Capillary Electrophoresis (CE)
0 Views •
2023
Source: Laboratory of Dr. B. Jill Venton - University of Virginia Capillary electrophoresis (CE) is a separation technique that separates molecules in an electric field according to size and charge. CE is performed in a small glass tube called a capillary that is filled with an electrolyte solution. Analytes are separated due to differences in electrophoretic mobility, which varies with charge, solvent viscosity, and size. Traditional electrophoresis in gels is limited in the amount of voltage...
07:31
Two-Dimensional Gel Electrophoresis
0 Views •
2023
Two-dimensional gel electrophoresis (2DGE) is a technique that can resolve thousands of biomolecules from a mixture. This technique involves two distinct separation methods that have been coupled together: isoelectric focusing (IEF) and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). This physically separates compounds across two axes of a gel by their isoelectric points (an electrochemical property) and their molecular weights. The procedure in this video covers the main...
09:22
DNA Gel Electrophoresis
0 Views •
2023
DNA gel electrophoresis is a technique used for the detection and separation of DNA molecules. An electric field is applied to a gel matrix comprised of agarose, and within the gel, charge particles will migrate and separate based on size. The negatively charged phosphates of the DNA backbone cause DNA fragments to move toward the anode - a positively charged electrode. The video explains the mechanism by which DNA fragments are resolved on an agarose gel, and it provides a step-by-step...
FAQs
Separation quality depends on electrophoretic mobility, the tendency of a charged molecule to move under an electric field. Molecular charge and size contribute to that mobility, while the narrow channel and buffer provide the environment for movement. Analytes with different mobility travel differently, creating separated signals that can be detected and interpreted.
The electric field provides the driving condition, but separation depends on how each charged analyte responds within the buffer-filled channel. Molecules that differ in charge or size acquire different electrophoretic mobilities, so they do not remain as one combined population during analysis. This principle lets a low-volume sample yield distinguishable information about several molecular components.
Narrow channels support analysis at a miniaturized scale, allowing researchers to work with small amounts of biological material and reduced reagent volumes. That scale is especially relevant when samples originate from cells or neural tissues, where available material may be limited. Miniaturization also supports rapid analysis and the potential integration of separation with automated devices.
A basic workflow places a small biological sample in a narrow channel containing buffer, applies an electric field, and allows charged molecules to migrate. Differences in electrophoretic mobility separate the analytes as they move through the channel. Detection then provides information about the separated components, such as neurotransmitters, peptides, nucleic acids, or other compounds.
Researchers can apply the method when they need to characterize molecular components associated with cellular signaling or brain chemistry. Relevant targets include neurotransmitters, peptides, nucleic acids, and other compounds present in complex material from cells or neural tissues. Its small sample requirement makes it suitable for situations in which only limited biological material is available.
The approach combines low reagent consumption, small sample requirements, and rapid analysis in a miniaturized format. These features can support sensitive examination of brain chemistry and cellular signaling while reducing the material needed for each analysis. Its potential integration with automated devices may further assist streamlined workflows for studying complex neural samples and their molecular components.