Lysis Reagent
Lysis Reagent - Related Videos
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.
10:17
Preparing Anhydrous Reagents and Equipment
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2023
Source: Laboratory of Dr. Dana Lashley - College of William and Mary Demonstrated by: Timothy Beck and Lucas Arney Many reactions in organic chemistry are moisture-sensitive and must be carried out under careful exclusion of water. In these cases the reagents have a high affinity to react with water from the atmosphere and if left exposed the desired reaction will not take place or give poor yields, because the reactants are chemically altered. In order to prevent undesired reactions with H2O...
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...
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...
01:26
EDTA: Auxiliary Complexing Reagents
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2024
EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...
FAQs
Detergents act on lipid membranes, weakening the barrier that keeps intracellular contents enclosed. This disruption allows molecules and cellular structures to move into the surrounding solution, where they can be recovered for analysis. The extent and purpose of membrane disruption depend on the formulation, since researchers may want broad release of contents or selective preservation of particular molecules.
Different formulations can be selected to preserve desired molecules while removing or disrupting unwanted cellular components. This distinction matters because DNA, RNA, proteins, and organelles may require different handling conditions during sample preparation. Matching the reagent to the intended target helps produce a sample that remains suitable for purification, detection, or a later analytical experiment.
These mechanisms weaken biological material in different ways. Osmotic imbalance disrupts cellular stability, enzymatic digestion breaks down structural barriers, and protein denaturation alters proteins that help maintain cellular organization. A lysis reagent may rely on one mechanism or combine several, allowing the formulation to release intracellular contents while influencing which structures or molecules remain available for analysis.
Researchers should align the lysis formulation and conditions with the intended downstream measurement. The goal may be to recover DNA, RNA, proteins, or organelles, so conditions must support release while preserving the selected material or removing interfering components. Careful control improves the transition from intact biological material to a sample suitable for purification, detection, or further experimentation.
Recovered intracellular material can support several molecular workflows. DNA or RNA preparations may be directed toward PCR or sequencing, while protein-containing samples can be used for analysis such as Western blotting. Organelles may also be recovered when cellular structures are the focus. Thus, lysis connects sample preparation with measurements of distinct biological molecules and compartments.
Selection influences both what is released and what remains usable after cell disruption. A formulation designed for the intended target can help preserve DNA, RNA, proteins, or organelles, whereas unsuitable disruption may remove or alter components needed for analysis. This choice therefore affects the quality of purification, detection, and downstream interpretation in biological experiments.