Cell Lysis Fragmentation
Cell Lysis Fragmentation - Related Videos
09:49
A Simple Red Blood Cell Lysis Method for the Establishment of B Lymphoblastoid Cell Lines
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Cited by 1 •
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A simple red blood cell lysis method for establishing B-LCLs was developed with high immortalization efficiency, requiring a small amount of blood and saving time from initiation to cryopreservation.
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Tissue Homogenization and Cell Lysis
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Tissue homogenization involves disintegrating tissue architecture and lysing cells, and is an early step in isolating and analyzing cellular components. The method used for homogenization depends on the sample type, the amount of sample available, the analyte to be obtained, and the sensitivity of the method. These methods are broadly classified as mechanical and non-mechanical methods. Mechanical methods of tissue homogenization These methods rely on applying external physical force to disrupt...
03:12
A Procedure for Bacterial Harvesting and Mechanical Lysis
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2025
Source: Mercier, N., et al. MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria. J. Vis. Exp. (2021)This video demonstrates a step-by-step procedure for harvesting bacterial cells and mechanically lysing them to release intracellular contents.
04:11
Isolation of Endospores from an Environmental Sample by Targeted Lysis of Vegetative Cells
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2025
Source: Wunderlin, T., et al. Physical Isolation of Endospores from Environmental Samples by Targeted Lysis of Vegetative Cells. J. Vis. Exp. (2016)This video demonstrates a method to isolate endospores from an environmental sample containing both vegetative cells and various bacteria. The procedure involves filtration, mechanical disruption, and selective chemical treatment to weaken and lyse vegetative cells while preserving endospores. The final step isolates the resilient endospores through...
02:31
Habitat Fragmentation
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2020
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition. Perforation and dissection often occur during the initial stages of...
FAQs
The central control point is matching disruption strength to the downstream assay. Insufficient lysis can leave intracellular material unreleased and reduce DNA yield, whereas excessive mechanical or chemical treatment can compromise DNA integrity or create fragments poorly suited to the intended analysis. The appropriate condition therefore depends on whether the workflow needs relatively intact genomic DNA or deliberately fragmented material.
Different lysis inputs act at different parts of the preparation. Mechanical forces physically disrupt cellular structures and can shear DNA; detergents help break the plasma membrane; enzymes or chemical conditions can address cell walls and proteins. These options may support release, fragmentation, or both, so method selection should reflect the sample and the desired genetic measurement.
Fragmentation changes the physical form of released DNA and must suit the intended assay. Controlled shearing or other handling can produce material appropriate for library construction or sequencing, while excessive fragmentation may reduce DNA integrity. Conversely, insufficient fragmentation may leave DNA in a form unsuitable for a workflow that requires smaller pieces, affecting downstream measurements and reproducibility.
A preparation begins by disrupting the cells and addressing structures or proteins that limit release. The liberated intracellular material is then handled to preserve or modify DNA according to the assay, including controlled fragmentation when required. The resulting preparation proceeds to an application such as DNA extraction, PCR, library construction, or sequencing, with each stage influencing sample quality.
This preparation is relevant whenever genetic analysis requires access to intracellular genomic DNA. It supports DNA extraction, PCR, sequencing, and library construction, among other workflows identified in the source material. Researchers choose the disruption and handling conditions according to the intended application, because each workflow may place different demands on DNA yield, integrity, or fragment size.
Poorly controlled preparation can introduce variation before the genetic assay begins. Incomplete lysis may lower DNA yield, while excessive disruption can damage DNA or produce unsuitable fragments. These changes can affect sample quality, reproducibility, and the reliability of downstream genomic measurements, making preparation conditions an important part of interpreting differences among genetic samples or experiments.