You searched for: “countercurrent electrophoresis
counterimmunoelectrophoresis, CIE, counter electrophoresis, countercurrent electrophoresis, counter migration electrophoresis
A laboratory technique in which an electric current is used to accelerate the migration of an antibody and an antigen through a buffered diffusion medium.

Antigens in a gel medium in which the pH is controlled are strongly negatively charged and will migrate rapidly across the electric field toward the anode.

The antibody in such a medium is less negatively charged and will migrate in an opposite or "counter" direction toward the cathode.

If the antigen and antibody are specific for each other, they combine and form a distinct line of precipitation.

This technique is becoming increasingly useful for detecting antigens or antibodies specific for given infectious diseases, diagnosing clinical bacterial infections, and choosing medications to treat the infections.

This entry is located in the following unit: electro-, electr-, electri- (page 3)