Used for proteins. The detergent SDS unfolds the proteins and gives them a uniform negative charge, ensuring they are separated strictly by length rather than shape.
DNA profiling (DNA fingerprinting) uses electrophoresis to compare crime scene samples with suspect DNA.
The standard method for separating DNA fragments, often used after a PCR (Polymerase Chain Reaction) to verify results.
Electrophoresis is the backbone of several critical scientific fields: