the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode
"During the electrophoresis experiment, we observed that the positively charged proteins migrated toward the cathode while the negatively charged ones moved to the anode."
the migration of electrically charged molecules through a medium under the influence of an electric field
"The researcher adjusted the voltage to speed up the electrophoresis, ensuring that all DNA fragments migrated properly through the gel."