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History of Flow Cytometry

Published in Biomedical Engineering
Tuesday, 28 March 2017 14:08

The first fluorescence-based flow cytometry device (ICP 11) was developed in 1968 by Wolfgang Göhde from the University of Münster, Germany and first commercialized in 1968/69 by German developer and manufacturer Partec through Phywe AG in Göttingen. At that time, absorption methods were still widely favored by other scientists over fluorescence methods. The original name of the flow cytometry technology was pulse cytophotometry (German: Impulszytophotometrie). Only 10 years later in 1978, at the Conference of the American Engineering Foundation in Pensacola, Florida, the name was changed to flow cytometry, a term that quickly became popular. Soon after, flow cytometry instruments were developed, including the Cytofluorograph (1971) from Bio/Physics Systems Inc. (later: Ortho Diagnostics), the PAS 8000 (1973) from Partec, the first FACS instrument from Becton Dickinson (1974), the ICP 22 (1975) from Partec/Phywe and the Epics from Coulter (1977/78).

Principle of flow cytometry

A beam of light (usually laser light) of a single wavelength is directed onto a hydrodynamically-focused stream of fluid. A number of detectors are aimed at the point where the stream passes through the light beam: one in line with the light beam (Forward Scatter or FSC) and several perpendicular to it (Side Scatter (SSC) and one or more fluorescent detectors).

Each suspended particle from 0.2 to 150 micrometers passing through the beam scatters the light in some way, and fluorescent chemicals found in the particle or attached to the particle may be excited into emitting light at a longer wavelength than the light source. This combination of scattered and fluorescent light is picked up by the detectors, and, by analyzing fluctuations in brightness at each detector (one for each fluorescent emission peak), it is then possible to derive various types of information about the physical and chemical structure of each individual particle.

Special Procedures and Troubleshooting | COULTER® EPICS® XL™ Flow Cytometer | COULTER EPICS XL-MCL™ Flow Cytometer | BECKMAN COULTER

Published in Downloads
Tuesday, 10 May 2016 19:58
Use the Reference manual for in-depth information on the principles of flow cytometry, information about what your instrument does, the methods it uses, its specifications, and information on installation, safety, and system options.
Use the Getting Started manual to become familiar with the controls and indicators for your system and to learn about protocols, regions, panels, and the basic skills you need to operate the system. This manual also has an overview of the software.
Use the Operator’s Guide for the day-to-day running of your instrument. Go through the detailed step-by-step procedures of startup, quality control (QC), running samples, analyzing data, printing reports, reviewing QC data, and shutdown.
Use the Data Management manual for instructions on how to export, save, copy, move, archive, and delete files. It also has information about the types of files your system creates and uses, instructions for working with QC features, and instructions for setting up the report template that you need to create your patient reports.
Use the Special Procedures and Troubleshooting manual to clean, replace, or adjust a component of the instrument. The Troubleshooting tables and error messages appear at the back of the manual.
Use the Operating Summary as a quick reference for basic procedures.
Use the Master Index to easily locate a topic in any of your manuals.
Use the User's Comment Card in the Reference manual to give us your comments about the manual and ways to improve it.

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