DialysisDialysis is a routinely used technique in research laboratories to change the solution a biomolecule is dissolved in. Often the buffers used to isolate biomolecules, such as proteins, are not compatible with downstream applications due to high concentrations of reagents, such as salts. A sample is placed in a bag with a semi permeable membrane and then placed in the new solution or water. Small molecules, such as salt, can pass through the membrane,