Unified Theory for Gel Electrophoresis and Gel Filtration

Gel Electrophoresis

Electrophoresis is the migration of charged particles or molecules in an electric field. This occurs when the substances are in aqueous solution. The speed of migration is dependent on the applied electric field strength and the charges of the molecules. Thus, differently charged molecules will form individual zones while they migrate. In order to keep diffusion of the zones to a minimum, elect...

Gel Electrophoresis

Electrophoresis is the main metod for separating large polyelectrolyte molecules, primarily used on DNA, in biochemistry and medicine research. An overwiev of the models of physical mechanisms that are behind this phenomena will be presented. The prominent role is taken by reptation mechanisms, by which large ‡exible polyelectrolytes thread their way through the pores of the gel matrix. There a...

Gel Electrophoresis

The separation of polypeptides by electrophoresis allowed Arne Tiselius to describe protein fractions corresponding to albumin, -, -, and -globulins in serum with the Rrst published diagram of human serum protein electrophoresis in 1939. The number of fractions slowly expanded into electrophoretic subfractions identiRed as 1, 2, 1, 2, 1 and 2. The mobility characteristics of these fractions are...

Useful buffer and gel systems for polyacrylamide gel electrophoresis.

Seven buffer and gel systems for polyacrylamide gel electrophoresis using discontinuous voltage and pH gradients (disc electrophoresis according to ORNSTEIN-UAVIS) and five systems using discontinuous voltage gradients at constant pH (according to ALLEN) have been compiled and characterized. Usefulness and applicability of the systems for clinical investigations are discussed and illustrated by...

Gel Electrophoresis and Photography