RFK Jr, the nominee for US Secretary of Health and Human Services, made headlines after being seen consuming a mysterious blue liquid mid-flight, speculated to be methylene blue. This substance ...

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 ...

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 ...

RFK Jr, the nominee for US Secretary of Health and Human Services, made headlines after being seen consuming a mysterious ...