Dr. Grace Dzido, MD is an internal medicine doctor who practices in Roanoke, VA. She is 54 years old and has been practicing for 19 years.
The Loading Dye * Loading dye is a colored buffer mixed with the DNA prior to loading onto the gel. The loading dye contains a relatively high concentration of either glycerol or sucrose. This makes the solution more dense than the surrounding running buffer so that when a sample is pipetted over top of a well it sinks down into the well.
Reactive dyes take their name from the fact that they chemically react with the fiber molecules to form a dye-fiber bond. This strong bond between the dye and the fiber imparts excellent wash-and light-fastness.ts use is in the fixing of Fiber Reactive Dyes, the creation of an alkali environment in which the cellulose and the dye are able to permanently bond together. In vat dyeing, the Ph of the liquid in which the fabric is submerged is changed to about 10.5 at an appropriate point by the addition of soda ash.