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Coulter counter

   Also found in: Dictionary/thesaurus, Legal, Encyclopedia, Wikipedia 0.01 sec.
counter /coun·ter/ (koun´ter) an instrument to compute numerical value; in radiology, a device for enumerating ionizing events.
Coulter counter  an automatic instrument used in enumeration of formed elements in the peripheral blood.
Geiger counter , Geiger-Müller counter an amplifying device that indicates the presence of ionizing particles, particularly β particles.
scintillation counter  a device for detecting ionization events, permitting determination of the concentration of radioisotopes in the body or other substance.
Coulter counter
[kōl′tər]
Etymology: W.H. Coulter, twentieth century American engineer
trademark for an electric device that rapidly identifies and counts red and white blood cells present in a small specimen of human blood.
counter [kown´ter]
an instrument or apparatus by which numerical value is computed; in radiology, a device for enumerating ionizing events.
Coulter counter an automated instrument for performing blood counts, based on the principle that cells are poor electrical conductors compared with saline solution.
Geiger counter (Geiger-Müller counter) a radiation counter using a gas-filled tube that indicates the presence of ionizing particles. It is very sensitive to β particles but relatively insensitive to γ and x-rays.
scintillation counter a device for detecting ionization events, permitting determination of the concentration of radioisotopes in the body or other substance.
Coulter counter
an instrument that counts particles in a fluid medium by electronic means. Can be calibrated to count cells in milk or a blood sample.
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Another of Roy's favorites was the Coulter Counter Model S introduced in 1958, 50 years ago: "It was even in a movie, Omega Man with Charlton Heston, but how Chuck got usable results with all six lights on in one scene is beyond me.
Get a yearnin' for learnin by Perry, Ralph B. / Medical Laboratory Observer
Proliferation assays Coulter Counter Assay: To determine the growth inhibitory activity, MDA-MB-453 human breast cancer cells were exposed to increasing concentrations of black cohosh extracts containing 1%, 15%, or 27% triterpene glycosides (Table 1) or purified triterpene glycosides from Cimicifuga species (Table 2) for 96 h and the number of viable cells was determined by the Coulter Counter assay.
Growth inhibitory activity of extracts and compounds from Cimicifuga ... by Einbond, Linda Saxe; Wen-Cai, Ye; He, Kan; Wu, Hsan-au; Cruz, Erica; Roller, Mare; Kronenberg, Fredi / Phytomedicine: International Journal of Phytotherapy & Phytopharmacology
The Coulter Counter, patented in 1953, is still used today in hospitals to count red cells, lymphocytes, monocytes and other cells in blood.
From the world of modern Cell Science,a long and sorted coming-of-age ... by The Star (Amman, Jordan)
 
 
 
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