Glass Bead Lysis
Glass Bead Lysis - Related Videos
03:12
A Procedure for Bacterial Harvesting and Mechanical Lysis
0 Views •
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.
01:28
The Looking Glass Self
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2025
The concept of the looking-glass self describes how an individual's self-concept is shaped by their perception of how others see them. This psychological theory, first introduced by sociologist Charles Horton Cooley in 1902, posits that self-identity emerges in a social context and is influenced by the judgments—real or imagined—of others.Research suggests that individuals frequently overestimate how positively others perceive them. This is particularly evident in physical self-perception,...
01:32
Tissue Homogenization and Cell Lysis
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2023
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...
03:43
A Technique for Magnetic Glass Particle-Mediated Nucleic Acid Extraction from Blood
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2025
This video demonstrates a technique for nucleic acid extraction from whole human blood using magnetic glass particles (MGPs) — small magnetic beads coated with silica. Upon lysing the blood cells using a lysis buffer, the released nucleic acids bind to the surface of silica-coated MGPs, extracting the molecules from the sample.
11:52
Microbubble Fabrication of Concave-porosity PDMS Beads
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Cited by 2 •
2015
Procedures used to generate microstructured concave-porosity polydimethylsiloxane beads are presented. Effects of electrolyte concentration and identity within the aqueous phase are particularly emphasized.
FAQs
The key forces are direct bead-to-cell impacts and shear generated during vigorous agitation. Each collision applies mechanical stress to the cell envelope, while movement between beads and the surrounding suspension contributes additional shearing. Together, these forces compromise membranes and can overcome rigid cell walls in some organisms, increasing access to intracellular material for later analysis.
Glass bead lysis is especially useful when a sample has a tough-to-disrupt envelope, including microorganisms and other difficult specimens. Mechanical impact can address structures that make chemical or enzymatic treatment insufficient. This makes the method a practical alternative when researchers need to access intracellular contents without depending on a lytic reagent.
Unlike approaches that depend on detergents or lytic enzymes, this method supplies the disruptive force through physical agitation. That distinction matters because cell opening is driven by collisions and shear rather than reagent-mediated breakdown. It therefore provides a mechanical route for preparing lysates for nucleic-acid, protein, or metabolite extraction.
At a basic level, researchers combine a cell suspension with small glass beads and vigorously agitate the mixture. The agitation creates repeated bead-to-cell contact and shear, producing a disrupted suspension. That material can then serve as the starting material for downstream extraction of DNA, RNA, proteins, or metabolites.
The disrupted cell material can provide access to several classes of intracellular molecules, including proteins, nucleic acids, and metabolites. Consequently, the same physical lysis approach can support DNA or RNA work, protein-focused studies, and metabolite extraction. The relevant outcome is release of these molecules from cells that have been mechanically opened.
Biologists may choose this approach when working with microorganisms or other samples that resist easier disruption methods. Its value is greatest when chemical or enzymatic treatments are insufficient and intracellular material must still be accessed. The resulting lysate supports molecular investigations that require DNA, RNA, protein, or metabolite extraction from difficult biological samples.