Methylene blue is a synthetic dye and medication used for a variety ... Staining cells: Methylene blue stains negatively ...

People have been wearing blue jeans for centuries. Originally, the blue color came from a natural indigo dye. The dye was chosen for the way it interacted with cotton. When heated, most dyes ...

A simple blue stain could force trees into giving up their memories of cold summers and volcanic winters, a recent study ...

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 ...