methylene
Noun
Meaning
A hydrocarbon radical, CH2, not known in the free state, but regarded as an essential residue and component of certain derivatives of methane; as, methylene bromide, CH2Br2; -- formerly called also methene.
Source: Webster's dictionarySynonyms
Hypernyms
Phrases with the word
Examples
After mid-1889, when Ehrlich was unemployed, he privately continued his research on methylene blue.
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.
Ehrlich obtained methylene blue from the company Meister Lucius & Brüning AG (later renamed Hoechst AG), which started a long collaboration with this company.
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.
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.
He was looking for an agent which was as effective as methylene blue, but without its side effects.