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 towel is saturated with the dye. Counterstain with Methylene Blue for 30 ...

The liquid he is purportedly seen adding to his drink is understood to be methylene blue. The video has sparked questions and speculation about the substance. The America AF account asked ...

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 ...