Gel electrophoresis is a type of electrophoresis in which molecules such as DNA are moved in a gel. DNA is added to an agarose gel or polyacrylamide gel, and a High-voltage direct current (HVDC) is applied to the gel to generate an electric current. Large molecules move slowly and small molecules move quickly. Electrophoresis separates the bands by DNA size, and the DNA is stained for analysis.

For more details, please refer to "Electrophoresis".

Matsusada Precision manufactures and sells high-voltage DC power supplies and module power supplies used in electrophoresis.