| Feulgen, Robert | <person> German nucleic acid biochemist and cytochemist, 1884-1955. First to detect DNA in cells by a specific cytochemical test. (05 Mar 2000) |
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| Kasten's fluorescent Feulgen stain | <technique> A fluorescent modification of the Feulgen stain, utilizing any one of a variety of fluorescent basic dyes to which SO2 is added; the brilliant fluorescence makes this method unusually sensitive and adaptable to cytofluorometric quantification of DNA. (05 Mar 2000) |
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| Feulgen reaction | <procedure> A specific staining procedure for DNA: mild acid hydrolysis makes the aldehyde group of deoxyribose available to react with Schiff's reagent to give a purple colour. (18 Nov 1997) |
| Feulgen reagent | <chemical> A staining substance which specifically stains DNA. Robert Feulgen, in 1914, used this stain to find out that DNA is the hereditary material in cells. (09 Oct 1997) |
| Feulgen stain | <technique> A selective cytochemical reaction for DNA in which sections or cells are first hydrolyzed with hydrochloric acid to produce apurinic acid and then are stained with Schiff's reagent to produce magenta-stained nuclei; generally the concentration of DNA in nucleoli and mitochondria is too low to permit detection by this stain See: Kasten's fluorescent Feulgen stain. (05 Mar 2000) |
| Abbe, Robert | <person> U.S. Surgeon, 1851-1928. See: Abbe flap, Abbe operation. (05 Mar 2000) |
| Abrahams, Robert | <person> U.S. Physician, 1861-1935. See: Abrahams' sign. (05 Mar 2000) |
| Adams, Robert | <person> Irish physician, 1791-1875. See: Adams-Stokes disease, Stokes-Adams disease, Adams-Stokes syncope, Adams-Stokes syndrome, Stokes-Adams syndrome, Morgagni-Adams-Stokes syndrome. (05 Mar 2000) |
| Aird, Robert | <person> U.S. Neurologist, *1903. See: Flynn-Aird syndrome. (05 Mar 2000) |
| Aldrich, Robert Anderson | <person> U.S. Paediatrician, *1917. See: Aldrich syndrome, Wiskott-Aldrich syndrome. (05 Mar 2000) |
| Barnes, Robert | <person> British obstetrician, 1817-1907. See: Barnes' curve, Barnes' zone. (05 Mar 2000) |
| Bensley, Robert | <person> U.S.-Canadian anatomist, 1867-1956. See: Bensley's specific granules. (05 Mar 2000) |
| Bing, Paul Robert | <person> German neurologist, 1878-1956. See: Bing's reflex. (05 Mar 2000) |
| Brown, Robert | <person> English botanist, 1773-1858. See: brownian motion, brownian movement, brownian-Zsigmondy movement. (05 Mar 2000) |
| Bunsen, Robert | <person> German chemist and physicist, 1811-1899. See: Bunsen burner, Bunsen's solubility coefficient, Bunsen-Roscoe law. (05 Mar 2000) |
| Meadows, William Robert | <person> U.S. Cardiologist, *1919. See: Meadows' syndrome. (05 Mar 2000) |