Life Science Buffers
Balanced salt solutions and powders used for molecular, protein, nucleic acid, and cell biology applications including cell culture, electrophoresis, ELISA, and chromatography processes; available in a variety of formulations and grades.
Buffer solutions serve to keep pH (acidity or alkalinity) nearly constant in a variety of chemical and biological applications. For example, a bicarbonate buffer helps maintain the pH of blood, a buffered saline maintains cellular contents at a consistent pH level, and buffers help maintain a narrow pH range for enzymes to function correctly.
Most biological samples used in research are kept at a pH of about 7.4. Common biological buffers used for tissue culture include Dulbeccos phosphate buffered saline (PBS), Tris base, HEPES, MOPS, PIPES, and other formulations developed for specific cell lines or applications. Most buffers used in cell culture are also DNase-, RNase-, and protease-free.
The choice of buffer for a particular biological reaction or site depends on several factors:
- Temperature
- Desired or target pH
- Buffer toxicity (to the system)
- Buffer interactions with other system components
Sigma Aldrich Fine Chemicals Biosciences Trizma Pre-set crystals | 100g
Trizma Pre-set crystals | MW: 151.6 (average) | 100g
![Research Products International Corp HEPPS [N-(2-Hydroxyethyl)piperazine-N'-(3-propane sulfonic acid)] [EPPS], 25 Grams](https://assets.fishersci.com/TFS-Assets/CCG/product-images/VN00006095-H75060-25.0.JPG-250.jpg)
Research Products International Corp HEPPS [N-(2-Hydroxyethyl)piperazine-N'-(3-propane sulfonic acid)] [EPPS], 25 Grams
- Substance Name: HEPPS [N-(2-Hydroxyethyl)piperazine-N'-(3-propane sulfonic acid)] [EPPS]
- CAS Number: 16052-06-5
- Molecular Formula: C9H20N2O4S
- Molecular Weight: 252.3
Sigma Aldrich Fine Chemicals Biosciences HEPES Sodium Salt | 75277-39-3 | MFCD00036463 | 100g
HEPES Sodium Salt | Purity: 99% | Mol Wt: 260.29 | 75277-39-3 | MFCD00036463 | 100g
Selleck Chemical LLC P62-mediated mitophagy inducer
P62-mediated mitophagy inducer (PMI) is a P62-mediated activator of mitophagy that functions independently of parkin recruitment or mitochondrial membrane potential ( m) collapse It remains effective even in cells lacking a fully functional PINK1/Parkin pathway PMI stabilizes Nrf2 and enhances p62 expression thereby activating mitophagy
Thermo Scientific Production Chemicals and Services 50 MM TRIS-HCL 10 MM EDTAPH8
NC3588273 50 MM TRIS-HCL 10 MM EDTAPH8
Med Vet International Lisinopril Usp Tablets, 20mg, 100ct
VET LICENSE NEEDS TO BE PROVIDED IN 3-4 BUSINESS DAYS OR ORDER WILL BE CANCELLED
Lisinopril is used to treat high blood pressure (hypertension) in adults and children who are at least 6 years old. Lisinopril is also used to treat congestive heart failure in adults, or to improve survival after a heart attack.
Teknova 10X PBS Solution. 1000mL, Sterile. Endotoxin Tested.
Phosphate-buffered saline (PBS) is a salt solution that is commonly used in physiological and biochemical experiments. It can be used to maintain pH neutrality or to buffer against changes in pH in order to provide optimal conditions for cellular growth and function. The buffering range is between pH 6.8 and 7.4.
Alkali Scientific CellPro™ PBS, 1X, pH 7.4, without Calcium & Magnesium, Sterile Filtered, 500mL
Phosphate-buffered saline (PBS) is a balanced salt solution that is used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue samples, diluting cells for counting, and preparing reagents. PBS is formulated without calcium and magnesium for rinsing chelators from the culture before cell dissociation. Concentrated forms of Gibco™ PBS may require pH adjustment at the time of dilution.
Boston Bioproducts Inc HEPES Buffer (0.5 M, pH 7.4, pH Adjusted with KOH) - 250ml
The HEPES [4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid)] Buffer is a versatile Good's zwitterionic buffering agent widely used in various applications in biochemistry and molecular biology. It maintains a stable pH in the range of 6.8 to 8.2, making it ideal for various applications at physiological pH, including cell culture, protein purification, isoelectric focusing, enzyme studies, bioprocessing, and live cell imaging. This formulation is adjusted with KOH.
Electron Microscopy Sciences R-Universal Epitope Recovery Buffer (10x stock) 500 ML
EMS UNIVERSAL Epitope Recovery Buffer is a novel (patent-pending) technology for epitope recovery, primarily based on reversing the fixation effects of formaldehyde, which created links primarily between ε-amino groups of lysine and other amino-groups. In extensive testing the buffer has shown excellent results when used with different antibodies, including those that require low or high pH buffers or protolithic treatment for successful staining.
The EMS Universal Buffer may be used in any heat-induced epitope recovery system (the time and temperature of treatment should be tested), but was specifically adjusted for tissue sections processing in our Antigen Retriever (62700 Series). Using our Universal Buffer in our Retriever guarantees the highest rate of success in recovering epitope for any antibody, especially one that was never previously used on formalin-fixed sections. Shelf Life: 12 months.
Sigma Aldrich Fine Chemicals Biosciences PIPES 99 titration25KG
PIPES is a member of the ethanesulfonic acid buffer series first introduced by Good et al. developed to meet certain criteria midrange pKa maximum water solubility and minimum solubility in all other solvents minimal salt effects minimal change in pKa with temperature chemically and enzymatically stable minimal absorption in visible or UV spectral range and easily synthesized. Since its pKa at 37 C is near physiological pH PIPES has applications in cell culture work.
United States Biological Corporation TRIS HCL BUFFER 1M PH7.5,500ML
Tris is one of the most widely used buffers in molecular biology and cell culture due to its low toxicity, stability and buffering capacity. Purity: ≥99.9% Appearance: White, crystalline powder pH (1M): 10.5-11.5 pKa: 8.0-8.4 Absorbance (260nm): ≤0.06 Absorbance (280nm): ≤0.05 Absorbance (290nm): ≤0.2 Solubility (1M): Colorless, clear, complete Loss on Drying: ≤0.2% Melting Point: 168-172°C Heavy Metals (Pb): ≤0.0001% Arsenic: ≤0.0001% Calcium: ≤0.0001% Copper: ≤0.0001% Iron: ≤0.0005% Magnesium: ≤0.0001% Insoluble Matter: ≤0.005% Residue on Ignition: ≤0.1% RNase: DNase: Protease: Meets specifications.
Research Products International Corp TBE, 4 L Cube
TBE is a common buffer used in gel electrophoresis.
Supplied as a 1X concentrated solution containing:
89mM Boric Acid
2mM EDTA disodium salt
pH (1X solution @ 25°:C): 8.3+0.1
Medchemexpress LLC Beta-hydroxyisovalerylshikonin | 7415-78-3 | 1 MG
Beta-hydroxyisovalerylshikonin is a natural product isolated from *Lithospermum erythrorhizon*. It acts as a potent inhibitor of protein tyrosine kinases (PTK) and is effective against a wide variety of tumor cell lines.
- Potent inhibitor of protein tyrosine kinases (PTK)
- Effective against various tumor cell lines
- Induces cell death in NCI-H522 and DMS114 cells
- For research use only
Sigma Aldrich Fine Chemicals Biosciences Dulbeccos Modified Eagles500ML
This DMEM-Hi glucose medium is a 1x complete medium with sodium pyruvate added. It also differs from the original DMEM-Hi formulation wherein pyridoxine is substituted for pyridoxal. Pyridoxal is an unstable component of media. This medium requires supplementation with L-glutamine or L-alanyl-L-glutamine.