Agarose gel is used to make gel plates, so that samples can be electrophoresed on the gel plates, which is called "running gel" for short.

In molecular biology, there will be bands when running gel, because the moving speed of charged biomacromolecules in the electric swimming pool depends on the molecular weight, so biomacromolecules with the same molecular weight gather together to form bands, thus achieving the purpose of separating and purifying biomacromolecules.

Extended data

Required instruments:

1. Electrophoresis tank: Electrophoresis tank is the core part of electrophoresis system. According to the principle of electrophoresis, an electrophoresis bracket is placed between two buffers, and the electric field is connected to the two buffers through the electrophoresis bracket, and different electrophoresis tanks are used for different electrophoresis.

2. Power supply: To make charged biological macromolecules swim in the electric field, an electric field must be applied, and the resolution and speed of electrophoresis are closely related to the electric parameters during electrophoresis. Different electrophoresis technologies need different voltage, current and power ranges.

reference data

Baidu encyclopedia-electrophoresis

Baidu encyclopedia-agarose gel electrophoresis