Noun
a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning
Source: WordNetAfter mid-1889, when Ehrlich was unemployed, he privately continued his research on methylene blue. Source: Internet
Microscopic visualization of the encapsulated bacilli, usually in very large numbers, in a blood smear stained with polychrome methylene blue (McFadyean stain) is fully diagnostic, though culture of the organism is still the gold standard for diagnosis. Source: Internet
Ehrlich obtained methylene blue from the company Meister Lucius & Brüning AG (later renamed Hoechst AG), which started a long collaboration with this company. Source: Internet
He became particularly interested in its use to stain bacteria and parasites such as Plasmodiidae – the genus which includes the malaria pathogen – and found that it could be stained with methylene blue. Source: Internet
He thought methylene blue could possibly be used in the treatment of malaria, tested it clinically, and by the 1890s methylene blue was being used for that purpose. Source: Internet
He was looking for an agent which was as effective as methylene blue, but without its side effects. Source: Internet