Gibco® MEM Amino Acids Solution is used as a growth supplement for cell culture medium, to increase cell growth and viability. Gibco® MEM Amino Acids Solution is formulated to contain 50X the essential amino acids (except L-glutamine) found in the standard Minimum Essential Medium (MEM). The complete formulation is available. Product Use For in vitro diagnostic use. Dual-site cGMP Manufacturing and Quality System Gibco® MEM Amino Acids Solution is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufactur...
Size: 100 ml
DAF-FM is a reagent that is used to detect and quantify low concentrations of nitric oxide (NO). It is essentially nonfluorescent until it reacts with NO to form a fluorescent benzotriazole. DAF-FM fluorescence can be detected by any instrument that can detect fluorescein, including flow cytometers, microscopes, fluorescent microplate readers and fluorometers. DAF-FM Specifications: • Ex/Em of DAF-FM: ~495/515 nm • Lyophilized product should be dissolved using DMSO and then added to an aqueous buffer to create a working solution • DAF-FM diacetate is cell permeant and passively diffuses across...
Size: 10 x 50 µg
Molecular Probes® CellTracker™ fluorescent probes freely pass through cell membranes and are converted to cell-impermeant reaction products. The cell-impermeant form is passed to daughter cells through several generations but is not transferred to adjacent cells in the population. Cells that are loaded with CellTracker™ probes are typically fluorescent and viable for at least 24 hours, making these probes excellent long-term cell tracers. Furthermore, the staining pattern can be fixed with formaldehyde or glutaraldehyde to allow long-term storage of the labeled cells or tissue, to facilitate s...
Size: 5 mg
Acid Phenol:Chloroform:IAA (125:24:1) is premixed and supplied at pH 4.5 ± 0.2. Provided in one bottle of 100 mL. In RNA extraction procedures, Acid Phenol:Chloroform:IAA aids in the removal of DNA (it partitions into the organic phase), helps to stabilize the interface, and prevents foaming when mixing. Preparation of phenol for use in molecular biology applications is a time-consuming and often hazardous procedure due to its toxic and corrosive nature. Ambion® premixed, quality tested, saturated phenols are ready-to-use, eliminating handling problems and offering a more convenient, safer, an...
Size: 100 ml
Dynabeads® M-270 Carboxylic Acid are monosized hydrophilic 2.8-µm superparamagnetic beads, composed of highly crosslinked polystyrene. Carboxylic acid groups on the surface allow for covalent amide bond formation to nucleic acids, proteins?peptides, and other ligands via primary amino- or sulphydryl groups, without requirement for protein blocking. Activation through carbodiimide is required and alternative reactive groups can be introduced by using commercially available cross-linkers. Dynabeads® magnetic beads are widely used as a solid-phase for presenting antibodies or antigens in automate...
Size: 10 ml
Acid Phenol:Chloroform:IAA (125:24:1) is premixed and supplied at pH 4.5 ± 0.2. Provided in one bottle of 400 mL. In RNA extraction procedures, Acid Phenol:Chloroform:IAA aids in the removal of DNA (it partitions into the organic phase), helps to stabilize the interface, and prevents foaming when mixing. Preparation of phenol for use in molecular biology applications is a time-consuming and often hazardous procedure due to its toxic and corrosive nature. Ambion® premixed, quality-tested, saturated phenols are ready to use, eliminating handling problems and offering a more convenient, safer, an...
Size: 400 ml
The cell-permeant SYTO 60 red fluorescent nucleic acid stain exhibits bright, red fluorescence upon binding to nucleic acids. Because the staining pattern of the SYTO dyes in live cells may vary between cell types, we offer the SYTO Red Fluorescent Nucleic Acid Stain Sampler Kit (S-11340) to enable researchers to find the most appropriate red-fluorescent SYTO stain for their system.
Size: 250 µl
SYTOX® Green nucleic acid stain is an excellent green-fluorescent nuclear and chromosome counterstain that is impermeant to live cells, making it a useful indicator of dead cells within a population. • Impermeant to live cells • Excitation/Emission: 504/523 nm • Use with 488 Argon-ion laser • Works with mammalian cells and both Gram-positive and Gram-negative bacteria Simple Viability Determination SYTOX® Green allows quick determination of cell viability when using flow cytometers, fluorescence microscopes, fluorometers, or fluorescence microplate readers. It will not cross intact membranes, ...
Size: 250 µl
The cell-permeant SYTO 82 orange fluorescent nucleic acid stain exhibits bright, orange fluorescence upon binding to nucleic acids. Because the staining pattern of the SYTO dyes in live cells may vary between cell types, we offer the SYTO Orange Fluorescent Nucleic Acid Stain Sampler Kit (S-11360) to enable researchers to find the most appropriate orange-fluorescent SYTO stain for their system.
Size: 250 µl
Our 4-acetamido-4'-maleimidylstilbene-2,2'- disulfonic acid is a thiol-reactive reagent that is water soluble, with high polarity and membrane impermeability. This polysulfonated dye is useful for determining whether thiol-containing proteins and polypeptide chains are exposed at the extracellular or cytoplasmic membrane surface.
Size: 25 mg
Intracellular calibration of the fluorescence response of cytosolic pH indicators is typically performed using the K + /H + ionophore nigericin , which causes equilibration of intracellular and extracellular pH in the presence of a depolarizing concentration of extracellular K + .
Size: 10 mg
DTNB or Elman's reagent can be used to quantitate thiols in proteins, cells and plasma by absorption measurements. It readily forms a mixed disulfide with thiols, liberating the chromophore 5-merapto-2-nitrobenzoic acid (absorption maximum 410 nm). Only protein thiols that are accessible to this water-soluble reagent are modified.
Size: 10 g
Tetrafluorophenyl (TFP) esters are an improvement over the succinimidyl ester (SE or NHS-ester) chemistry typically used to attach fluorophores or haptens to the primary amines of biomolecules. Both reactive chemistries produce the same strong amide bond between the dye or hapten and the compound of interest, but TFP esters are less susceptible to spontaneous hydrolysis during conjugation reactions. Alexa Fluor TFP esters are stable for several hours at the basic pH typically used for reactions – far outlasting succinimidyl esters.
Size: 1 mg
The amine-reactive Alexa Fluor 430 carboxylic acid, succinimidyl ester and its conjugates exhibit the rare combination of absorption between 400 nm and 450 nm and fluorescence emission beyond 500 nm (excitation/emission maxima ~434/539 nm).
Size: 5 mg
This single 5-isomer preparation of our proprietary, amine-reactive dye, Oregon Green 488 carboxylic acid, succinimidyl ester and its conjugates have green fluorescence similar to that of fluorescein but are more photostable. Additionally, Oregon Green 488 dye has a lower pK a than fluorescein (pK a = 4.7 versus 6.4 for fluorescein), making this bright dye less pH sensitive in the physiological range.
Size: 5 mg
To permit simultaneous long-term tracing of mixed-cell populations using different fluorescent colors, we have developed a probe whose applications should be similar to those of CFDA SE (commonly called CFSE). Cells labeled with our SNARF-1 carboxylic acid, acetate, succinimidyl ester have orange-red fluorescence that can be easily distinguished from that of cells loaded with green-fluorescent tracers such as CFDA SE.
Size: 10 × 50 µg
DNDS is a stilbene sulfonate that can be used to inhipit anionic transport.
Size: 1 g
The PrepMan® Ultra Sample Preparation Reagent was developed for the rapid preparation of DNA template from Gram-negative food-borne pathogens for use in PCR amplification reactions. These samples often have high lipid content that can inhibit PCR amplification of the template. Using a simple boil and spin protocol, PrepMan®Ultra Reagent efficiently inactivates PCR inhibitors, significantly reducing the need to repeat the template preparation step. PrepMan® Ultra reagent has been used to prepare PCR-ready template from a wide variety of different sources, including bacteria, yeast, filamentous ...
Size: 1 kit
The FISH Tag™ DNA Multicolor Kit provides a complete workflow solution for fluorescence in situ hybridization (FISH) applications. Each kit provides all of the reagents needed for probe synthesis, labeling, and purification, as well as for imaging the labeled specimen. The FISH Tag™ DNA Multicolor Kit contains fluorescent dyes in four colors, making it ideal for simultaneous localization of multiple sequence-specific DNA targets in chromosomal spreads and for in situ analysis of mitochondrial DNA localization and content. We also offer FISH Tag™ Kits in single colors. FISH Tag™ Kit Specificati...
Size: 1 kit
DNAzol® BD Reagent is a ready-to-use organic reagent specifically formulated for the isolation of genomic DNA from whole blood in about 30 minutes. • Specifically formulated for extraction of genomic DNA from whole blood • Optimized for the rapid Isolation of genomic DNA Efficient Isolation of Genomic DNA from Whole Blood DNAzol® BD Reagent is specifically formulated for the isolation of genomic DNA from whole blood. DNAzol® BD Reagent procedure is based on the use of a novel guanidine-detergent lysing solution that hydrolyzes RNA and allows the selective precipitation of DNA from the lysate. ...
Size: 100 mL