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Counting Eschericia coli Using the CytoFLEX Research Flow Cytometer

Beckman Coulter Diagnostics
30 Jul 2017

Escherichia coli are bacteria which can be found in foods, the environment and within the intestine of living organisms. Particular strains of E.coli can cause illness. In this application note, a quick protocol to enumerate bacteria in a sample using the CytoFLEX flow cytometer is presented. The range of resolution can support the identification of bacteria by forward and side scatter parameters and does not require any fluorescent dyes or counting beads to enable detection or enumeration.

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CytoFLEX Flow Cytometer

Beckman Coulter Life Sciences

Providing quality and performance at any configuration, the CytoFLEX system provides powerful sensitivity and resolution for the simple to the most challenging applications. CytoFLEX delivers and surpasses capabilities expected in top tier analyzers, with excellent performance and nanoparticle resolution.

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Flow Cytometry / Cell CountingFlow cytometers are used to count, sort and examine multiple characteristics of cells. Other cell analysis equipment includes image cytometers, cell counters, fluorescence-activated cell sorters (FACS), magnetic-activated cell sorters (MACS), and a range of flow cytometry assay kits. Flow cytometers can reveal information on cell viability, cell proliferation, apoptosis and cell cycle progression, as well as identify cell populations and intracellular or cell-surface molecules. Additionally, some flow cytometers, known as FACS, have an additional sorting function after analysis. Cell counters and image cytometers count live and dead cell populations and can also conduct cell proliferation assays. Find the best flow cytometers, cell counters and cell sorters in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.MicrobiologyMicrobiology is the study of microorganisms including protists, prokaryotes, fungi, and, often, viruses. Microorganisms are a useful research tool as genetic vectors and, in immunology, for antibiotic susceptibility testing, cellular biology and genetics. Microorganisms commonly grow readily in incubators with microbial culture media; this can contain chromogenic supplements to differentiate between cell lines. Estimate your culture’s density of microorganisms with colony counters, or screen and select colonies for desirable clones with automated colony pickers. Additionally, equipment is available to monitor environments for the presence of microbes and identify with microbial identification instruments. Find the best microbiology products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Colony CountingCytometryCytometry is a broad term for the quantitative analysis of cells and cell systems. The most popular methods to study cytometry are flow cytometry and image cytometry.BacteriaBacteria are microorganisms that play critical roles in the environment, human health, and biotechnology. Understanding bacterial genetics, growth, and metabolism is essential for developing antibiotics, vaccines, and improving industrial processes. Browse our peer-reviewed product directory to find the best bacterial research tools, compare products, check reviews, and get pricing directly from manufacturers.Bacterial Identification

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