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PK-15 Cells

€375.00*

Content: 1 cryovial
Product variants
Product number: 607426

Required products

Freeze Medium CM-1
Long-term storage
In biological research, the cryopreservation of mammalian cells is an invaluable tool. Successful preservation of cells is a top priority given that losing a cell line to contamination or improper storage conditions leads to lost time and money, ultimately delaying research results. Once the cells have been transferred from a cell growth medium to a freezing medium, the cells are typically frozen at a regulated rate and stored in liquid nitrogen vapor or at below -130°C in a mechanical deep freezer. The freeze medium CM-1 enables cryopreservation of cells at below -130°C (or in liquid nitrogen), essentially eliminating the need for an additional, costly ultralow freezer and eliminating time-consuming and demanding controlled rate freezing processes. Simply collect the cells, aspirate the growth medium, resuspend in CM-1, transfer to a cryovial, and store the vial at below -130 °C.
Long shelf-life
CM-1 is a serum-containing, ready-to-use cryopreservation medium that can be stored in the refrigerator for up to one year.
Trusted by hundreds of researchers
Our advanced cell freezing medium CM-1 is a market-leading product in Germany and Europe and is distinguished by numerous publications involving hundreds of different cell lines worldwide. We tested it with more than 1000 cell lines from our proprietary cell bank.
Optimized ingredients
CM-1 does contain serum products. Serum-containing cryopreservation mediums optimally protect the cells whilst being frozen and have the advantage of high recovery rates. As CM-1 has been tested with a multitude of cell lines, you can rest assured that your cells always recover well.

Contains FBS, DMSO, glucose, salts
Buffering capacity pH = 7.2 to 7.6

Applications & Validation
The cells preserved in our CM-1 freeze medium can be used for cell counting, viability and cryopreservation, cell culture, mammalian cell culture, gene expression analysis and genotyping, in vitro transcription, and polymerase chain reactions. Each batch's efficacy is evaluated using CHO-K1 cells. Each batch is tested for pH, osmolality, sterility, and endotoxins to ensure high quality.

From €59.00*
EMEM (MEM Eagle), w: 2 mM L-Glutamine, w: 1.5 g/L NaHCO3, w: EBSS, w: 1 mM Sodium pyruvate, w: NEAA
One of the most widely used synthetic cell culture media is Minimum Essential Medium Eagle (MEM). Developed by Harry Eagle, this medium was first introduced in 1959 and has since become a popular choice for various cell types grown in monolayers and adherent cell lines.
This EMEM medium consists of 2 mM L-Glutamine, 1.5 g/L NaHCO3, EBSS, 1 mM Sodium pyruvate, and NEAA.
What's in EMEM?
EMEM is a modified version of Eagle's minimum essential medium, containing Earle's Balanced Salt Solution, non-essential amino acids, L-glutamine, sodium pyruvate, and sodium bicarbonate. It's important to note that this reduced level of sodium bicarbonate (NaHCO3, 1.5 g/L) is intended for use in 5% CO2 in the air. To maintain its effectiveness, storing the medium at two °C to 8°C in the dark when not in use is recommended.
What is EMEM used for?
Eagle's minimal essential medium (EMEM) is a cell culture medium that can maintain cells in tissue culture. The medium contains higher concentrations of amino acids, allowing for a more accurate approximation of the protein composition of cultured mammalian cells. EMEM may be used to cultivate various cells, including fibroblasts, human liver cancer cell line (HepG2) cells and human fetal brain progenitor-derived astrocyte cells (PDA). It is typically used in the presence of fetal bovine serum (FBS), calf, or horse sera.
How is EMEM different from other cell culture media?
While EMEM and Dulbecco's modified Eagle's medium (DMEM) share some similarities, they also differ. Both media lack protein and contain the amino acids, salts, glucose, and vitamins required to provide a cell with energy and maintain it in tissue culture. However, the DMEM formulation is modified to contain up to four times more vitamins and amino acids and two to four times more glucose than EMEM. It's worth noting that EMEM is also different from the original MEM formulation. 
Quality control

pH = 7.2 +/
- 0.02 at 20-25°C. 
Each lot has been tested for sterility and absence of mycoplasma and bacteria.

Maintenance  

Keep refrigerated at +2°C to +8°C in the dark. Freezing and warming up to +37° C minimize the quality of the product. 
Do not heat the medium to more than 37° C or use uncontrollable sources of heat (e.g., microwave appliances). 
If only a part of the medium is to be used, remove this amount from the bottle and warm it up at room temperature.
Shelf life for any medium except for the basic medium is 8 weeks from the date of manufacture.

Composition




Components
mg/L


Inorganic Salts
Calcium chloride x 2H2O
264,92



Magnesium sulfate
97,67



Potassium chloride
400,00



Sodium chloride
6,800.00



Sodium dihydrogen phosphate x H2O
140,00


Other Components
D(+)-Glucose
1,000.00



Phenol red
10,00



Sodium pyruvate
110,00



NaHCO3
1,500.00


Amino Acids
L-Alanine
8,90



L-Arginine x HCl
126,00



L-Asparagine x H2O
13,20



L-Aspartic acid
13,30



L-Cystine
24,00



L-Glutamine
292,30



L-Glutamic acid
14,70



Glycine
7,50



L-Histidine x HCl x H2O
42,00



L-Isoleucine
52,00



L-Leucine
52,00



L-Lysine x HCl
72,50



L-Methionine
15,00



L-Phenylalanine
32,00



L-Proline
11,50



L-Serine
10,50



L-Threonine
48,00



L-Tryptophan
10,00



L-Tyrosine
36,00



L-Valine
46,00


Vitamins
D-Calcium pantothenate
1,00



Choline chloride
1,00



Folic acid
1,00



myo-Inositol
2,00



Nicotinamide
1,00



Pyridoxal x HCl
1,00



Riboflavin
0,10



Thiamine x HCl
1,00

€25.00*
PBS
Phosphate-Buffered Saline (PBS) Solution: The Optimal Buffer for Your Biological Research
Phosphate-buffered saline (PBS) is a versatile buffer solution used in many biological and chemical applications, as well as tissue processing. Our PBS solution is formulated with high-quality ingredients to ensure a constant pH during experiments. The osmolarity and ion concentrations of our PBS solution are matched to those of the human body, making it isotonic and non-toxic to most cells.
Composition of our PBS Solution
Our PBS solution is a pH-adjusted blend of ultrapure-grade phosphate buffers and saline solutions. At a 1X working concentration, it contains 137 mM NaCl, 2.7 mM KCl, 8 mM Na2HPO4, and 2 mM KH2PO4. We have chosen this composition based on CSHL protocols and Molecular cloning by Sambrook, which are well-established standards in the research community.
Applications of our PBS Solution
Our PBS solution is ideal for a wide range of applications in biological research. Its isotonic and non-toxic properties make it perfect for substance dilution and cell container rinsing. Our PBS solution with EDTA can also be used to disengage attached and clumped cells. However, it is important to note that divalent metals such as zinc cannot be added to PBS as this may result in precipitation. In such cases, Good's buffers are recommended. Moreover, our PBS solution has been shown to be an acceptable alternative to viral transport medium for the transport and storage of RNA viruses, such as SARS-CoV-2.
Storage of our PBS Solution
Our PBS solution can be stored at room temperature, making it easy to use and access.
To sum up
In summary, our PBS solution is an essential component in many biological and chemical experiments. Its isotonic and non-toxic properties make it suitable for numerous applications, from cell culture to viral transport medium. By choosing our high-quality PBS solution, researchers can optimize their experiments and ensure accurate and reliable results.
Composition




Components
mg/L


Inorganic Salts
Potassium chloride
200,00



Potassium dihydrogen phosphate
200,00



Sodium chloride
8,000.00



di-Sodium hydrogen phosphate anhydrous
1,150.00

€20.00*

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