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108 results for "QUALITY BIOLOGICAL, INC."

108 Results for: "QUALITY BIOLOGICAL, INC."

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ACK Lysing Buffer, Quality Biological

ACK Lysing Buffer, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Ammonium-Chloride-Potassium (ACK) Lysing Buffer is used for the lysis of red blood cells in samples containing white blood cells, such as EDTA-treated whole blood, buffy coats, and bone marrow.

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Dulbecco's Phosphate Buffered Saline (DPBS), Quality Biological

Dulbecco's Phosphate Buffered Saline (DPBS), Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

DPBS is a balanced salt solution (BSS) used for the handling and culturing of mammalian cells. Calcium and magnesium facilitate cell binding and clumping. DPBS without these ions can be used to wash and rinse suspended cells.

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Leibovitz' L-15 Medium, Quality Biological

Leibovitz' L-15 Medium, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Most media are buffered by a combination of sodium bicarbonate and an atmosphere enriched in CO2. The latter is usually provided through the use of a specially equipped incubator. L-15 was developed at a time when such equipment was not readily available. Dr. Leibovitz developed a buffering system based on free base amino acids, inorganic salts and the substitution of galactose for glucose.

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Cell Freezing Medium, Quality Biological

Cell Freezing Medium, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

It is important to store cells for future studies.

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TE (Tris EDTA) Buffers, Quality Biological

TE (Tris EDTA) Buffers, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

TE is composed of buffering agent Tris, and chelating agent EDTA. EDTA prevents degradation of DNA and RNA by chelating magnesium (or other divalent metal ions). Together, this Tris-EDTA based solution solubilizes DNA or RNA, while protecting it from degradation.

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Williams Medium E, Quality Biological

Williams Medium E, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Dr. Williams and his coworkers’ studies on hepatocytes in culture led to the development of Williams’ Medium E.

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Dulbecco's Modified Eagle's Medium (DMEM), Quality Biological

Dulbecco's Modified Eagle's Medium (DMEM), Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

DMEM (Dulbecco’s Modified Eagle Medium) is a widely used basal medium for supporting the growth of many different mammalian cells. Cells successfully cultured in DMEM include primary fibroblasts, neurons, glial cells, HUVECs, and smooth muscle cells. We offer a variety of DMEM modifications for a range of cell culture applications.

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Phosphate Buffered Saline (10X PBS), pH 7.2, Sterile, Quality Biological

Phosphate Buffered Saline (10X PBS), pH 7.2, Sterile, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

PBS (phosphate buffered saline) is a balanced salt solution used for a variety biological and cell culture applications.

   Sustainable Options Available
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L-Glutamine 200 mM, Quality Biological

L-Glutamine 200 mM, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

L-glutamine is a cell culture supplement, and an essential amnio acid. L-glutamine is required in cell culture for cellular growth.

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LB Broth (Luria Bertani, Miller), Quality Biological

LB Broth (Luria Bertani, Miller), Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

LB Agar, Miller and LB Broth, Miller are based on LB Medium as described by Miller for the growth and maintenance of E. coli strains used in molecular microbiology procedures. These are nutritionally rich media designed for growth of pure cultures of recombinant strains.

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Water, for Cell Culture, WFI Quality

Water, for Cell Culture, WFI Quality

Supplier: QUALITY BIOLOGICAL, INC.

QBI’s Water, Cell Culture, WFI Quality is high quality water for use as a solvent in the preparation of cell culture media and biochemical reagents.

This water is extensively purified by reverse osmosis, subsequently deionized and passed through a filter membrane to remove particles and tested to meet the specifications found in the USP (United States Pharmacopeia) monograph for Water for Injection (WFI) for conductivity, endotoxin,and TOC. It is additionally tested for sterility, mycoplasma, and cell culture performance.

This water is tested against USP specifications, but is not intended for injection. It is only intended for research or further manufacturing use, not for diagnostic or therapeutic use.

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Hanks' Balanced Salt Solution (HBSS), Quality Biological

Hanks' Balanced Salt Solution (HBSS), Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Hanks' Balanced Salt Solution (HBSS) provides a buffering system to maintain the physiological pH range and osmotic balance of the culture media. HBSS provides cells with a source of water and essential inorganic ions, and carbohydrate as an energy source.

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Sodium acetate aqueous solution, Filter sterile pH 4.5

Sodium acetate aqueous solution, Filter sterile pH 4.5

Supplier: QUALITY BIOLOGICAL, INC.

Sodium acetate is a widely used reagent in molecular biology applications. It is used as a buffer in conjunction with acetic acid, in the buffering range of pH 3.6 – 5.6.

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Terrific Broth, Quality Biological

Terrific Broth, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Terrific Broth was developed by Tartoff and Hobbs to increase yields in plasmid bearing E. coli. Terrific Broth is an enriched medium, which helps the recombinant strains of E. coli maintain an extended growth phase. The large amount of tryptone and yeast extract in the medium allows the bacteria to produce a higher plasmid yield.

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DNA Gel Loading Solution, 5X, Quality Biological

DNA Gel Loading Solution, 5X, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

DNA Gel Loading Solutio, 5X is prepared according to Sambrook, Fritsch & Maniatis. The purpose of this reagent is to be a tracking dye during electrophoresis. It ensures that DNA samples remain submerged in the wells of the gel, by making them denser than the electrophoresis buffer.

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EDTA (0.5 M), pH 8.0, Quality Biological

EDTA (0.5 M), pH 8.0, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

EDTA (Ethylenediaminetetraacetic acid), a metal chelator, is widely used in molecular biology as a chemical reagent to reduce nuclease activity (i.e. metalloenzyme). EDTA solution can be used to study cell biology, molecular biology, bioactive small molecules, biochemicals, solutions and reagents, inorganic salts, and chelators.

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Magnesium chloride 2 M in aqueous solution, sterile filtered

Magnesium chloride 2 M in aqueous solution, sterile filtered

Supplier: QUALITY BIOLOGICAL, INC.

Magnesium is a typical ionic halide, and is very soluble in water. Magnesium has a variety of biological roles in enzymology, cell membrane/wall structure, muscle cell physiology, and nucleic acid structure. Magnesium is an essential co-factor in many enzymes, including DNAse, some restriction enzymes, and Ribonuclease H.

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RNA Gel Loading Solution 10X, Quality Biological

RNA Gel Loading Solution 10X, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

RNA Gel Loading Solution, 10X is prepared according to Sambrook, Fritsch & Maniatis (1989)

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Super Broth, Quality Biological

Super Broth, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Super Broth is used for the mass cultivation of Escherichia coli for high yield protein and plasmid DNA production.

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Kanamycin 50 mg/mL Ready-to-Use, Filter sterile

Kanamycin 50 mg/mL Ready-to-Use, Filter sterile

Supplier: QUALITY BIOLOGICAL, INC.

Kanamycin sulfate is a water soluble broad spectrum antibiotic obtained from soil bacterium Streptomyces kanamyceticus. It is an aminoglycoside antibiotic effective against Gram-negative and Gram-positive bacteria and mycoplasma. It binds to the 30S ribosomal subunit, inhibits translocation, and elicits miscoding.

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Fetal Bovine Serum, USDA Origin, Quality Biological

Fetal Bovine Serum, USDA Origin, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

USDA FBS is used as a supplement in classical cell culture media. USDA FBS both nourishes and protects the cells in a way that almost nothing else has been found to do.

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Milk, non fat (skimmed milk), powder

Milk, non fat (skimmed milk), powder

Supplier: QUALITY BIOLOGICAL, INC.

Non Fat Dry Milk

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Cryopreservation Media, Quality Biological

Cryopreservation Media, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Cryopreservation Medium is a ready-to-use medium for the preservation of cells as seed stock or for future investigative study. Cryopreservation allows you to preserve and protect your cell line stock(s) from over culturing that can lead to unwanted changes within cellular properties or lead to senescence.

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YPG Plates, Quality Biological

YPG Plates, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

YPG Agar is recommended for the growth of Saccharomyces cerevisiae for molecular biology purpose.

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Ham's F-12 Nutrient Mixture without Hypoxanthine, Quality Biological

Ham's F-12 Nutrient Mixture without Hypoxanthine, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Compared to other basal media, Ham’s F-12 contains a wider variety of components, including zinc, putrescine, hypoxanthine, and thymidine. Ham’s F-12 contains no proteins or growth factors, and uses a sodium bicarbonate buffer system (1.176 g/L); therefore requiring a 5–10% CO2 environment to maintain physiological pH.

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TBE 10X, Quality Biological

TBE 10X, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

TBE (TRIS Borate EDTA) is often used in procedures involving nucleic acids, the most common being electrophoresis in molecular biology. Tris-acid solutions are effective buffers for slightly basic conditions, which keep DNA deprotonated and soluble in water.

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Tris (1 M) Buffer Solution, pH 9.8, Quality Biological

Tris (1 M) Buffer Solution, pH 9.8, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Suitable for molecular biology, protein chemistry, and biochemical applications.

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Tris HCl Buffer Solution, Quality Biological

Tris HCl Buffer Solution, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

Tris is a buffer component in molecular biology, tissue culture, and electrophoresis procedures. These solutions of Tris hydrochloride provide convenient and highly purified solutions.

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MEM NEAA 100Xr, Quality Biological

MEM NEAA 100Xr, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

MEM NEAA contains the same non-essential amino acids found in the standard MEM, at a strength of 100. MEM NEAA 100X can be used to enhance cell growth and prolong the viability of cells in culture. MEM NEAA 100X is commonly used as a supplement to minimal basal medium, and does not dilute the components already in the cell culture medium.

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RPMI-1640, Quality Biological

RPMI-1640, Quality Biological

Supplier: QUALITY BIOLOGICAL, INC.

RPMI 1640 is suitable for a wide range of anchorage independent cells. RPMI 1640 Medium is commonly supplemented with 10% Fetal Bovine Serum (FBS). Although, RPMI-1640 has been shown to support the serum-free growth of a number of cells.

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