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Flow-FISH (fluorescence in-situ hybridization) is a cytogenetic technique to quantify the copy number of RNA or specific repetitive elements in genomic DNA of whole cell populations via the combination of flow cytometry with cytogenetic fluorescent in situ hybridization staining protocols. [1] [2] [3] Flow-FISH is most commonly used to quantify ...
Flow cytometry (FC) is a technique used to detect and measure the physical and chemical characteristics of a population of cells or particles. [1] [2] [3] [4]In this process, a sample containing cells or particles is suspended in a fluid and injected into the flow cytometer instrument.
Cell cycle analysis by DNA content measurement is a method that most frequently employs flow cytometry to distinguish cells in different phases of the cell cycle.Before analysis, the cells are usually permeabilised and treated with a fluorescent dye that stains DNA quantitatively, such as propidium iodide (PI) or 4,6-diamidino-2-phenylindole (DAPI).
The fluorochrome-based TUNEL assay applicable for flow cytometry, combining the detection of DNA strand breaks with respect to the cell cycle-phase position, was originally developed by Gorczyca et al. [4] Concurrently, the avidin-peroxidase labeling assay applicable for light absorption microscope was described by Gavrieli et al. [5] Since 1992 the TUNEL has become one of the main methods for ...
Flow cytometry to count or sort out cells. An example is the use of Hoechst dyes to analyse how many cells of a population are in which phase of the cell cycle [10] Detecting DNA in the presence of RNA in agarose gels [11] Automated DNA determination [12] Chromosome sorting [11] Hoechst efflux is also used to study hematopoietic and embryonic ...
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Probes not binding to the intended sequence do not achieve sufficient localized fluorescence to be distinguished from background. [18] Single-molecule RNA FISH assays can be performed in simplex or multiplex, and can be used as a follow-up experiment to quantitative PCR, or imaged simultaneously with a fluorescent antibody assay.
A diaphonized mirror dory.The bones are dyed red and the cartilage is dyed blue. Diaphonized veiled chameleon. Field Museum of Natural History, Chicago.. Diaphonization (or diaphonisation), also known as clearing and staining, is a staining technique used on animal specimens that first renders the body of the animal transparent by bathing it in trypsin, and then stains the bones and cartilage ...