title: An economic "power supply" using a diode for agarose and polyacrylamide gel electrophoresis.
abstract: Gel electrophoresis using agarose and polyacrylamide is a technique widely used for the separation of DNA and protein of various molecular sizes. This type of electrophoresis involves use of a rather expensive dc power supply composed of a complicated circuit. A simple circuit consisting of a single diode was designed, which can be used as a substitute for the conventional power supply. There are no appreciable differences in the so-obtained electrophoretic patterns. This simple, economic system is expected to be applied for use in laboratory, industrial, educational, and clinical facilities.
mesh_terms: D004247:DNA / Q000302:isolation & purification / Q000378:metabolism; D004262:DNA Restriction Enzymes / Q000378:metabolism; D011211:Electric Power Supplies / Q000191:economics; D004581:Electronics; D004591:Electrophoresis, Polyacrylamide Gel / Q000295:instrumentation*; D011506:Proteins / Q000302:isolation & purification; D012666:Semiconductors
chemical_list: D011506:Proteins; D004247:DNA; D004262:DNA Restriction Enzymes