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Flow cytometry is a technique used to detect and measure physical and chemical characteristics of a population of cells or particles.. In this process, a sample containing cells or particles is suspended in a fluid and injected into the flow cytometer instrument. The sample is focused to ideally flow one cell at a time through a laser beam, where the light scattered is characteristic to the ...


By using highly specific antibodies tagged with fluorescent dyes, a researcher can perform FACS analysis and simultaneously gather data on, and sort a sample by a nearly limitless number of different parameters. In a FACS experiment: Forward-scatter, side-scatter, and fluorescent data is collected, as in conventional flow cytometry.


Flow cytometry is a popular cell biology technique that utilizes laser-based technology to count, sort, and profile cells in a heterogeneous fluid mixture. FACS is an abbreviation for fluorescence-activated cell sorting, which is a flow cytometry technique that further adds a degree of functionality.


FACS Analysis is the short-hand expression for this type of cell analysis. The term FACS stands for Fluorescent Activated Cell Sorting, a term first coined by Len Herzenberg in the 1970’s, and later trademarked by Becton Dickinson. Since that time, FACS has come to be used as a generic term for all of flow cytometry, even though it is a ...


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4.2 Light scatter. Most instruments measure light scattered by the cells at right angles to the laser beam (side scatter, SS) and light scattered in a forward direction (forward scatter, FS) (see Chapter 2.3.1).The amount of light scattered is affected by the size, shape and optical homogeneity of the cells (or other particles being measured).


Fluorescence-activated cell sorting (FACS) is a specialized type of flow cytometry. It provides a method for sorting a heterogeneous mixture of biological cells into two or more containers, one cell at a time, based upon the specific light scattering and fluorescent characteristics of each cell.


FACS Analysis Flow cytometry is a technology that simultaneously measures and then analyzes multiple physical characteristics of single particles, usually cells, as they flow in a fluid stream through a beam of light. The properties measured include a particle’s relative size, relative granularity or internal complexity, and relative fluorescence intensity. These characteristics


Flow Cytometry Antibodies BD Biosciences offers a wide array of both purified and conjugated antibodies, available in multiple sizes, from sample to bulk. We also offer kits and sets to streamline workflow.


Tim Bushnell holds a PhD in Biology from the Rensselaer Polytechnic Institute. He is a co-founder of—and didactic mind behind—ExCyte, the world’s leading flow cytometry training company, which organization boasts a veritable library of in-the-lab resources on sequencing, microscopy, and related topics in the life sciences.