Sonication Fragmentation
Sonication Fragmentation - Related Videos
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...
07:24
Sonication Extraction of Lipid Biomarkers from Sediment
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2023
Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst The material comprising the living "organic" share of any ecosystem (leaves, fungi, bark, tissue; Figure 1) differs fundamentally from the material of the non-living "inorganic" share (rocks and their constituent minerals, oxygen, water, metals). Organic material contains carbon linked to a series of other carbon and hydrogen molecules (Figure 2), which distinguishes it from inorganic material. Carbon's wide valency range...
06:13
Electroeluting DNA Fragments
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Cited by 8 •
2010
This procedure allows the purification of DNA fragments with high yield.
09:05
Generation and Quantitative Analysis of Pulsed Low Frequency Ultrasound to Determine the Sonic Sensitivity of Untreated and Treated Neoplastic Cells
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2015
Selective damage of human leukemia cells can be achieved through a novel approach of applying low frequency ultrasound both with and without chemotherapeutic pretreatment of leukemic and normal hematopoietic cells.
04:57
Chromatin Shearing: A Method to Generate Chromatin Fragments Using Enzymatic Digestion
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2023
This video describes the protocol for chromatin shearing using micrococcal nuclease enzymatic digestion. Chromatin shearing is an essential step in Chromatin immunoprecipitation or ChIp workflow, which helps investigate protein-DNA interaction in human chronic myeloid leukemia cells. In the feature protocol chromatin shearing is performed using sonication.
FAQs
Ultrasonic waves create cavitation bubbles in the liquid sample. When these bubbles rapidly collapse, they generate localized shear forces that disrupt cells and break larger DNA or chromatin structures into smaller fragments. The resulting physical stress supports both cell lysis and controlled molecular fragmentation, making the sample more suitable for downstream biological analysis.
Power, pulse duration, temperature, and total exposure time jointly influence the outcome. Increasing or changing these conditions can alter the extent of cell disruption and the size of DNA or chromatin fragments. Because the variables interact, controlled adjustment is important when a workflow requires consistent fragmentation rather than simply maximum physical disruption.
Temperature and exposure control help balance effective disruption against unwanted sample damage. Excessive treatment can reduce control over the resulting material, whereas insufficient treatment may leave cells or molecular structures inadequately disrupted. Maintaining reproducible conditions therefore helps preserve the intended sample quality and improves consistency in assays performed after sonication.
A typical workflow places the biological material in a liquid sample, applies ultrasonic energy, and adjusts power, pulse duration, temperature, and exposure time to achieve the desired disruption or fragment size. The treated material is then used for molecular analysis. Controlling these parameters during preparation helps produce material suitable for the selected downstream assay.
For chromatin immunoprecipitation, sonication fragmentation helps prepare chromatin by breaking it into smaller fragments after cellular disruption. Fragment size and treatment conditions affect the character of the prepared material, so reproducible sonication supports more consistent immunoprecipitation workflows. The technique therefore connects physical sample preparation with analysis of chromatin-associated molecular information.
Sonication fragmentation can generate nucleic-acid fragments that are suitable for sequencing workflows. By controlling the treatment conditions, researchers influence the size and consistency of the fragments entering downstream analysis. This preparation step is useful when molecular samples must be converted into a more manageable fragmented form, while reproducibility helps limit variation between assays.