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Methylene

methylene

(Science: chemistry) 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.

(Science: chemistry) Methylene blue, an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; called also pure blue.

Origin: F. Methylene, from Gr. Wine _ wood; a word coined to correspond to the name wood spirit.


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Conflicting results of Gram-Negative unknown

... papers are due tomorrow... 1. MacConkey Agar *Negative for lactose fermentation -Results: No color change in media (remained pink) 2. Eosin Methylene Blue agar * Conflicted about results, believed to be negative RESULTS: Pink growth with slight darkening around the edges 3. Hektoen Enteric ...

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by Jrh21854
Sun Dec 01, 2013 8:25 pm
 
Forum: Microbiology
Topic: Conflicting results of Gram-Negative unknown
Replies: 0
Views: 1839

the purpose of using 0.5% methylene blue dye ???

can anyone tell me the purose of using 0.5% methylene blue dye in the experimenet of water potential of potato tuber cells????? thx >W<

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by jasonllll
Sat Oct 02, 2010 3:51 am
 
Forum: Cell Biology
Topic: the purpose of using 0.5% methylene blue dye ???
Replies: 1
Views: 1614

Re: Staining slides with Food dye? (Or any household item)

I checked 3 pet stores and still none had methylene blue... Anything else?

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by bhylak
Mon Jan 25, 2010 11:28 pm
 
Forum: Microbiology
Topic: Staining slides with Food dye? (Or any household item)
Replies: 7
Views: 8103

Re: Staining slides with Food dye? (Or any household item)

Thanks... but I was wondering if it works well. So the methylene blue can be bought at walamart. And which would would work better?

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by bhylak
Fri Jan 22, 2010 2:03 am
 
Forum: Microbiology
Topic: Staining slides with Food dye? (Or any household item)
Replies: 7
Views: 8103

Re: Staining slides with Food dye? (Or any household item)

Brilliant Blue FCF is FD&C Blue #1, so if you are in the US, you should be able to get it as food coloring at the grocery store. As you noted, Methylene Blue is available as a disease treatment for aquarium fish, but I am not certain if the concentration is useful for staining - I've never ...

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by billw
Fri Jan 22, 2010 12:51 am
 
Forum: Microbiology
Topic: Staining slides with Food dye? (Or any household item)
Replies: 7
Views: 8103
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