Resisting pH changes, buffers protect samples when acids or alkali is added. Powder and liquid forms efficiently track proteins during electrophoresis isolation and separation. The salty buffers can also be used to calibrate and standardize pH meters for accurate readings. Blocking substances stop antibody attachment to membrane free sites that would produce an interfering background. In various concentrations to fit any need, the buffers may come in liquids or dehydrated formats.
Phosphate buffered saline, PBS-TWEEN® tablets, Millipore®
Supplier: Merck Millipore (Oncogene)
Developed for use in immunoassay applications.
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PBS, 10X solution, molecular biology grade, ultrapure
Supplier: Thermo Fisher Scientific
Washing buffer, PBS, 10X solution, molecular biology grade, ultrapure
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Low pH SDS Sample Buffer
Supplier: EKSIGENT
SCIEX Low pH SDS Sample Buffer, 140 mL (100 mM Tris-HCl, pH 6.8, 1% SDS) allows you to use SCIEX’s Gold Standard CE-SDS with a low pH SDS sample buffer. Use of this buffer can increase non-reduced purity by decreasing method induced fragmentation. Less variability and lower RSDs means less troubleshooting and faster method development.
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EDTA solution, 0,5 M, molecular biology grade, Calbiochem®, Millipore®
Supplier: Merck Millipore (Calbiochem)
Sterile-filtered solution of 0,5 M EDTA in H₂O treated with diethyl pyrocarbonate (DEPC). Used in molecular biology applications.
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2-D Protein Extraction Buffer
Supplier: Cytiva
Efficient cell lysis and protein extraction are key steps for achieving high-quality results in downstream applications. The 2-D protein extraction buffer trial kit is designed for those who experiment for establishing a suitable extraction and solubilization buffer for their protein samples.
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Blocking reagents, Blotto
Supplier: Rockland Immunochemicals
Contains immunoanalytical grade non-fat dry milk. Blocks non specific binding of proteins in various immunological assays. Ideal for use in western blotting and ELISA methods.
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Proteometer-CV Reconstitution Reagent
Supplier: NOVILYTIC
Proteometer-CV reconstitution reagent.
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TISAB II Solution, Supelco®
Supplier: Merck
TISAB, in general, is mixed with samples, as it helps in maintaining the ionic strength and pH constant. It is mainly used to decomplex metal-F complexes.
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SSC 20X buffer, MP Biomedicals
Supplier: MP Biomedicals
Role of a balanced salt solution in cell culture is multifaceted and can be divided into four principal functions:
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Ab buffer kit
Supplier: Cytiva
Ab buffer kit contains prepared buffer concentrates for binding, washing, and elution of IgG according to recommended protocols.
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Sodium bicarbonate, Corning®
Supplier: Corning
Sodium bicarbonate is used as part of a buffering system commonly used to maintain physiological pH 7,2 to 7,4 in a culture environment
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Protein A/G HP SpinTrap™ Buffer Kit
Supplier: Cytiva
Protein A/G HP SpinTrap™ Buffer kit is optimised for standard affinity-based enrichment/immunoprecipitation according to the protocol provided with protein A HP SpinTrap™, protein G HP SpinTrap™, and Ab SpinTrap™ columns.
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TBS with Tween® (TBST), 20X solution, Molecular Biology Grade, ultrapure
Supplier: Thermo Fisher Scientific
TBS is used in Western blotting protocols.
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Y-PER™ plus Yeast Protein Extraction Reagent, Dialysable
Supplier: Thermo Fisher Scientific
This extraction reagent is formulated to effectively lyse yeast and bacterial cells to extract and solubilise proteins for analysis.
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Solubilisation buffer, 2D-Xtract™
Supplier: G-Biosciences
A protein solubilisation buffer for 2D analysis must solubilise proteins effectively, without disturbing the native charge of the proteins. Urea based solubilisation buffers solubilise proteins effectively, however can modify the native charge of the proteins, due to carbamylation. Urea exists in equilibrium with ammonium cyanate that modifies α- and ε-amino groups, inducing changes in the isoelectric point of proteins leading to artifactual results.
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Buffer Capsules
Supplier: Greisinger
Cost-effective alternative: Buffer capsules and working sets. With buffer capsules, you can produce a 100 ml buffer solution in the most cost-effective manner. A particular advantage of the capsules is that their storage life is several years longer than that of ready-to-use solutions.
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HEPES Buffer, 1 M Sterile, Cell Culture Grade, MP Biomedicals
Supplier: MP Biomedicals
HEPES (N-2-hydroxyethylpiperazine-N-2-ethane sulfonic acid) is a general purpose zwitterionic organic chemical buffering agent which does not bind magnesium, calcium, manganese(II) or copper (II) ions.
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Protein extraction kit, tissue PE LB™
Supplier: G-Biosciences
Tissue PE LB™ has been developed for extraction of total biologically active, soluble proteins from animal tissues. Tissue PE LB™ is based on an organic buffer and utilises a mild non-ionic detergent, chelating agent, and a proprietary combination of various salts and agents to enhance extraction and stability of proteins. Depending on the required downstream application, additional agents such as reducing agents and protease inhibitors may be added into Tissue PE LB™. Tissue PE LB™ has been tested for use with a wide variety of fresh and frozen animal tissues.
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Protein extraction kit, mammalian cell PE LB™
Supplier: G-Biosciences
Mammalian Cell PE LB™ has been developed for extraction of total biologically active, soluble proteins from mammalian cultured cells. The Mammalian Cell PE LB™ is based on organic buffering agents and utilises a mild non-ionic detergent, chelating agent, and a proprietary combination of various salts and agents to enhance extraction and stability of proteins. Depending on the required downstream application, additional agents such as reducing agents, phosphatase and protease inhibitors may be added into Mammalian Cell PE LB™. Mammalian Cell PE LB™ has been tested on a wide variety of mammalian cells and can be used for both suspension and adherent cells.
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EDTA disodium salt solution, 0,2% in phosphate buffered saline, MP Biomedicals
Supplier: MP Biomedicals
EDTA disodium salt, (2%) solution, in phosphate buffered saline without calcium and magnesium. Used as a gentle non-enzymatic cell dissociation reagent.
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Sodium acetate, Corning® 3M™
Supplier: Corning
Sodium Acetate is a common molecular biology reagent. All production lots are tested to ensure that they are free of RNAse. It is often used in buffer systems to maintain the pH of a given solution.
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Tris-HCl, 1M solution, pH 8,0, Molecular Biology Grade, Ultrapure
Supplier: Thermo Fisher Scientific
1M solution of Tris, Ultrapure in high purity distilled H₂O, adjusted to pH 8,0.
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Protexidase™, peroxidase protection buffer, Immuno™, MP Biomedicals
Supplier: MP Biomedicals
A peroxidase protective buffer which stabilises HRP conjugates. It has 500 ml of PBS, pH 7,2, containing 0,5% BSA, antimicrobial preservatives and proprietary stabilising compounds.
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Subcellular Protein Fractionation Kit for Cultured Cells
Supplier: Thermo Fisher Scientific
This kit is ideal for segregation and enrichment of proteins from five different cellular compartments.
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Y-PER™ Yeast Protein Extraction Reagent
Supplier: Thermo Fisher Scientific
This reagent uses a mild detergent lysis procedure to efficiently release functionally active solubilised proteins.
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Subcellular protein fractionation kit for tissues
Supplier: Thermo Fisher Scientific
This kit is ideal for cell fractionation and enrichment of proteins from five different cellular compartments within two hours.
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Mammalian protein extract reagents, M-PER™
Supplier: Thermo Fisher Scientific
The M-PER Mammalian Protein Extraction Reagent is designed to provide highly efficient total protein extraction from cultured mammalian cells.
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Protein extraction kit, Insect PE LB™
Supplier: G-Biosciences
Insect PE LB™ has been developed for extraction of total biologically active, soluble proteins from adherent or suspension cultured insect cells, including Sf9 and Sf21. Insect PE LB™ utilises a mild non-ionic detergent and a proprietary combination of various salts and agents to enhance extraction and stability of proteins. The Insect PE LB™ is fully compatible with downstream processes, such as electrophoresis and chromatography. Depending on the required downstream application, additional agents such as reducing agents and protease inhibitors may be added into Insect PE LB™.