72, has not explained what the liquid was or whether he drank it. However, internet sleuths believe it was methylene blue, a substance originally used as a Victorian-era medicine and now known for ...

if extracted with benzene at a suitable pH, pass into the benzene medium, very often with a change of colour. This communication reports our preliminary results with methylene blue.

Cover the smear with carbolfuchsin dye. Carbolfuchsin a potential carcinogen. Please wear gloves and work with the stain in the hood. Place a piece of paper towel on top of the dye. Be sure the paper ...

Mapping lymph nodes: Methylene blue is injected into the lymphatic bed of a tumor to stain lymph nodes that drain from the tumor. This helps identify which lymph nodes are draining the tumor.

This type of stain allows us to observe the shape, size and arrangement of bacteria. 1. Use the smear prepared in the previous procedure. Staining is done at the sink. 2. Add several drops of ...