Cell Culture Media Process
Posted 2025-05-22 07:53:13
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The cell culture media process is a critical component in cell culture techniques, providing the nutrients and environment necessary for cells to grow and function in vitro. The composition and preparation of culture media directly influence cell health, viability, and experimental outcomes. Here’s an overview of the key steps involved in the process:
Key Steps in Cell Culture Media Process:
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Selection of Media Type:
- Depending on the cell type being cultured, different media formulations are selected. Common types include DMEM (Dulbecco’s Modified Eagle Medium), RPMI 1640, and MEM (Minimum Essential Medium), each tailored to specific cellular requirements.
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Supplementation:
- Media are typically supplemented with additional nutrients and growth factors, such as:
- Serum: Fetal bovine serum (FBS) is commonly added as a source of growth factors, hormones, and proteins.
- Antibiotics: Added to prevent bacterial contamination (e.g., penicillin-streptomycin).
- Other Supplements: Such as amino acids (glutamine), vitamins, and buffers to maintain pH stability.
- Media are typically supplemented with additional nutrients and growth factors, such as:
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Preparation:
- Carefully measure and add the necessary components to the basal medium. Sterile techniques are essential to avoid contamination.
- Adjust the pH to the desired level (typically around 7.2 to 7.4) using buffered solutions.
-
Filtration:
- Sterilize the media by passing it through a filter, usually with a pore size of 0.2 microns, to remove any contaminants while maintaining sterility.
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Storage:
- Store prepared media at appropriate temperatures (commonly 2-8°C) and protect from light if sensitive components (like some vitamins) are present.
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Quality Control:
- Perform quality control tests to ensure the media meets physiological and sterility standards before use. This might include pH testing, osmolality checks, and sterility testing.
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