Agarose Plug Preparation
Agarose Plug Preparation - Related Videos
04:26
Agarose-Based Preparation of Human Precision-Cut Lung Slices
0 Views •
2025
In this video, we describe a procedure to inflate isolated human lungs with agarose and prepare human precision-cut lung slices. The prepared ex vivo lung slices can be used for further immunologic experiments.
05:55
Whole Lung Agarose Inflation: A Method of Preparing Lungs for Ex vivo Live Imaging
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2023
This video describes a method of preparing lungs for ex vivo live imaging to study interactions between cancer cells and stromal cells, using agarose for inflation. In the sample protocol, agarose inflation procedure is described before observing live cellular interactions.
01:22
Formation of the Platelet Plug
0 Views •
2024
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss. As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
03:55
Agarose Spin Down Assay: A Technique to Embed Organoids for Histological Analysis
0 Views •
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07:10
Agarose Gel Electrophoresis for the Separation of DNA Fragments
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Cited by 599 •
2012
A basic protocol for the separation of DNA fragments using agarose gel electrophoresis is described.
FAQs
The solid agarose matrix supports the biological material throughout handling, limiting direct mechanical stress on large DNA molecules. This structural support matters because genomic DNA can be susceptible to shearing when manipulated outside a stabilizing matrix. Preserving its integrity improves the suitability of the prepared sample for downstream separation, restriction analysis, and genome characterization.
Cooling converts the molten agarose and sample mixture into a stable solid matrix that holds the material in place. This change provides the physical support needed for subsequent processing inside the plug. Without solidification, the sample would not have the same protected format for lysis, washing, or analysis of large DNA molecules.
In-plug lysis and washing allow sample processing while the genomic material remains enclosed in agarose. Keeping these steps within the matrix can reduce mechanical shearing compared with more disruptive handling of large DNA molecules. The resulting preparation is therefore better suited to analyses that depend on maintaining high-molecular-weight DNA structure.
Suitability depends on successfully combining the sample with molten agarose, casting the mixture in a mold, and allowing it to solidify before in-plug processing. The preparation must also retain the sample during lysis and washing. These conditions determine whether the material remains structurally intact enough for later electrophoretic or genomic analysis.
The workflow begins by mixing the biological sample, such as intact cells or genomic DNA, with molten agarose. The mixture is then cast into a mold and cooled until the agarose solidifies. Subsequent lysis and washing occur within the plug, producing a handled sample that can proceed to applications involving large DNA molecules.
Researchers choose this approach when they need to examine genomic DNA while reducing damage from mechanical handling. Prepared plugs can support pulsed-field gel electrophoresis, restriction analysis, and genome characterization. These applications use the preserved high-molecular-weight material to investigate DNA organization or analyze genomic samples that benefit from improved structural integrity.