1. Provide hormones for maintaining the exponential growth of cells, with no or few nutrients in the basic medium, and the main low molecular nutrients.
2. Provide binding proteins that can recognize vitamins, lipids, metals and other hormones, and can bind or modulate the vitality of the substances they bind.
3. In some cases, the binding protein can combine with toxic metals and pyrogens to play a role in detoxification.
4. It is the source of factors needed for cells to adhere to the wall and spread on the plastic medium.
5. It acts as a pH buffer.
6. Provide protease inhibitors to inactivate remaining trypsin during cell passage and protect cells from harm.
Fetal bovine serum is of the highest quality, because fetal bovine has not been in contact with the outside world, and the serum contains the least harmful components such as antibodies and complements; bovine serum is the natural medium with the largest amount of cell culture and rich in cell growth The necessary nutrients are often used for the in vitro cultivation of animal cells and have extremely important functions.
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