Publications(22)
Manual
PM150467
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Product Introduction
Background
MEM medium (Minimum Essential Medium) was developed on the basis of Eagle basic medium. It is one of the most basic and widely used culture medium, and one of the most commonly used culture medium in animal cell culture. MEM medium contains 12 kinds of essential amino acids, glutamine and 8 vitamins, which is simple, mainly used in the culture of adherent cells. It can also be used for other types of cell culture after the formula is modified. ATCC's modified MEM medium contains non-essential amino acids, sodium pyruvate, and reduces the amount of sodium bicarbonate.
This product contains many kinds of amino acids, vitamins, inorganic salts and other ingredients for cell culture, but does not contain protein, lipids or any growth factors. Therefore, the product should be used with serum or serum-free additives.
Ingredient Statement
With
• 1000 mg/L D-Glucose
• 2 mM L-Glutamine
• 1500 mg/L NaHCO₃
• 10 mg/L Phenol red
• NEAA
• Earle's Balanced salt
• 1 mM Sodium pyruvate
Without
• HEPES
Matters Need Attention
1. This product is only used for scientific research or further research, not for diagnosis and treatment.
2. This product is sterilized by 0.1 μm filtration.
3. It is necessary to pay attention to the aseptic operation and avoid the contamination.
System Certification
GMP Production and Quality System
The company complies with cGMP requirements, holds the NMPA medical device registration certificate, and is certified under ISO 13485 and ISO 9001 standards. Among its products, the company's MEM (ATCC modified) complies with ISO 13485, ISO 9001.
Specifications
| Concentration | 1× |
| Volume | 500mL |
| Form | Liquid |
| Bacteria Detection | Negative |
| Fungi Detection | Negative |
| Mycoplasma Detection | Negative |
| Endotoxin Content | < 3 EU/mL |
| pH | 7.0-7.6 |
| Animal Origin Ingredient | Without |
| Green Features | Sustainable packaging |
| Valid Period | 24 months |
| Storage Condition | This product can be stored at 2-8℃ for 24 months with shading light. |
| Shipping Condition | Room Temperature |
Documents
Publications
Journal: PHYTOTHERAPY RESEARCH (2026) IF: 6.3
DOI: 10.1002/ptr.70172
Product Cited: HT-29 Cells Line, 293 Cells Line, MEM (ATCC modified) Medium
Journal: Antioxidants (2025) IF: 6.6
Product Cited: MEM (ATCC modified) Medium, ST Cells Line
Journal: INTERNATIONAL IMMUNOPHARMACOLOGY (2025) IF: 4.7
DOI: 10.1016/j.intimp.2025.115812
Product Cited: A549 Cells Line, 293 Cells Line, MEM (ATCC modified) Medium, Human Alveolar Type II Epithelial Cell Complete Medium, Human Alveolar Type II Epithelial Cells
Journal: Toxics (2025) IF: 4.1
Product Cited: 0.25% Trypsin Solution, MEM (ATCC modified) Medium, Fetal Bovine Serum, 293 [HEK-293] Cells Line, Phosphate Buffer (PBS, 1 ×), Penicillin-Streptomycin Solution, 100 ×
Journal: JOURNAL OF BIOCHEMICAL AND MOLECULAR TOXICOLOGY (2025) IF: 3.2
DOI: 10.1002/jbt.70129
Product Cited: MEM (ATCC modified) Medium, AN3 CA Cells Line
FAQs
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Q:1 My cells are growing very slowly. What could be the cause of this?
AnswerPlease see some common reasons below, and solutions to the issue: - Growth medium is not correct: Use pre-warmed growth medium as recommended by the supplier. - Serum in the growth medium is of poor quality: Use serum from a different lot. and choose good quality serum to ensure nutrition. - Cells have been passaged too many times: Use healthy, low-passage number cells. - Cells were allowed to grow beyond confluency: Passage mammalian cells when they are in the log-phase before they reach confluency. - Culture is contaminated with mycoplasma: Discard cells, media, and reagents. Obtain new stocks of cells, and use them with fresh media and reagents.
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Q:2 What factors can contribute to rapid cell death/culture failure?
AnswerThere are a number of events that can contribute to this: 1. Incorrect CO2 levels:Monitor the level of CO2 manually with a Fyrite kit, available from Bacharach. Check if the manual readings concur with the readings displayed on the incubator. If the incubator has a trace readout, check the printout for fluctuations in CO2 level. Check the settings to ensure that CO2 levels are set at appropriate levels for your cell line (usually between 5 and 10%). Check line connections frequently for leaks. Avoid frequent opening and closing of incubator doors. 2. Temperature fluctuations in the incubator:Monitor the temperature of incubator with a good thermometer inside the incubator. 3. Amphotericin B or other preventive antibiotics/antimycotics are present at toxic concentrations:Use at recommended levels. 4. Humidity is incorrect:Check the water level in the water pan. Humidity is vital to appropriate gas exchange for many types of cells and media. 5. Incorrect osmotic pressure in medium:Check osmolality of complete medium. Most mammalian cells can tolerate an osmolality of 260 to 350 mOsm/kg. Additions of reagents such as HEPES and drugs may affect osmolality. 6. Contamination by microorganisms:Bacterial and fungal contaminations are usually easily visible; symptoms of mycoplasma contamination are more subtle, and careful monitoring of culture morphology and regular testing are necessary to detect this type of contamination. 7. Inappropriate medium is being used:Double-check that the medium used is appropriate for your cell type and culture application. For example, ensure that the medium being used for serum-free culture is actually designed for serum-free culture; make sure that appropriate selective drugs are used at appropriate levels; check the expiration dates for the reagents being used; and store medium at appropriate temperatures in the dark.
