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27844 results for Assays

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Assays

An assay is an investigative procedure in laboratory medicine, pharmacology, environmental biology, and molecular biology for qualitatively assessing or quantitatively measuring the presence or functional activity of the analyte, or the entity being targeted by the assay. Generally, assays involve biological materials or phenomena which tend to be intrinsically more complex in composition or in behaviour than what can be handled by traditional chemical analysis and titration.

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Cell Meter™ Fluorimetric Cell Cytotoxicity Assay Kit

Cell Meter™ Fluorimetric Cell Cytotoxicity Assay Kit

Supplier: AAT Bioquest

Our Cell Meter™ assay kits are a set of tools for monitoring cell viability.

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Pyruvate dehydrogenase (PDH) Protein Quantity Dipstick Assay Kit

Pyruvate dehydrogenase (PDH) Protein Quantity Dipstick Assay Kit

Supplier: Abcam

Pyruvate dehydrogenase (PDH) Protein Quantity Dipstick Assay Kit is an immunoassay kit for the detection of Pyruvate dehydrogenase (PDH) Protein Quantity in Mouse, Rat, Cow, Human in Cell culture extracts, Tissue samples.

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Bradford protein assay kits (B-Pak)

Bradford protein assay kits (B-Pak)

Supplier: OZ BIOSCIENCES

Bradford Protein Assay Kit (B-Pak) is a straightforward and rapid kit for determining the concentration of proteins in solution. This ready to use kit is provided with 1X reagent and 2 sets of BSA standards which means no dilution, filtration or calculation required. B-Pak is provided with adapted protocols for all experimental conditions – micro and macroassays.

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Screen Quest™ Rhod-4 No Wash Calcium Assay Kit

Screen Quest™ Rhod-4 No Wash Calcium Assay Kit

Supplier: AAT Bioquest

Calcium flux assays are preferred methods in drug discovery for screening G protein coupled receptors (GPCR).

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Glutaminase (GLS1) Inhibitor Screening Kit (Fluorometric)

Glutaminase (GLS1) Inhibitor Screening Kit (Fluorometric)

Supplier: Abcam

Sensitive, reproducible assay for initial screening of potential glutaminase inhibitors.

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Screen Quest™ Luminometric Calcium Assay Kit

Screen Quest™ Luminometric Calcium Assay Kit

Supplier: AAT Bioquest

Calcium flux assays are preferred methods in drug discovery for screening G protein coupled receptors (GPCR).

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Bicinchoninic acid disodium salt hydrate

Supplier: SIGMA ALDRICH MICROSCOPY

Bicinchoninic acid is used for the determination of protein concentration. It is responsible for the making of intense purple complex with cuprous ion (Cu+) in the presence of alkaline conditions. The amount of Cu+ is in relation with the protein concentration.

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Free Fatty Acid Fluorometric Assay Kit

Free Fatty Acid Fluorometric Assay Kit

Supplier: Cayman Chemical

A sensitive tool for measuring free fatty acids in plasma, serum, and urine.

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MESG *Phosphate Assay Reagent*

MESG *Phosphate Assay Reagent*

Supplier: AAT Bioquest

In the presence of inorganic phosphate MESG is converted to 2-amino-6-mercapto-7-methlpurine by purine nucleoside phosphorylase (EC 2.4.2.1) with absorption wavelength shift to red.

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Compat-Able™ BCA™ Protein assay kit

Compat-Able™ BCA™ Protein assay kit

Supplier: Thermo Fisher Scientific

The Compat-Able™ Reagents remove salts, detergents, reducing agents and other substances from protein samples to eliminate interference with protein assays. The protocol selectively precipitates all of the protein, thereby allowing the non-protein components to be easily decanted and removed. The purified, precipitated protein is redissolved in water, making it ready for accurate determination of the protein concentration by standard protein assay methods. The procedure is accomplished in less than 10 min with just a few simple steps. The Compat-Able™ Preparation Set is available conveniently bundled with the Pierce BCA™ Protein Assay Kit.

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Green long-term cell tracer, CYTO-ID®

Supplier: Enzo Life Sciences

Live cell fluorescent labelling used for a long term cell viability, cytotoxicity, cell adhesion, cell migration, and cell-cell fusion studies.

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Phosphatase assay kit

Phosphatase assay kit

Supplier: G-Biosciences

The Phosphatase Assay Kit is designed to measure the activity of phosphatases in biological samples and to screen for agonists and inhibitors of phosphatases. The Phosphatase Assay Kit uses para-nitrophenyl phosphate (pNPP), a chromogenic substrate for most phosphatases, including alkaline phosphatases, acid phosphatases, protein tyrosine phosphatases and serine/threonine phosphatases.

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Quantitative peroxide assay kit (lipid), Pierce™

Quantitative peroxide assay kit (lipid), Pierce™

Supplier: Thermo Fisher Scientific

Pierce™ Quantitative Peroxide Assay Kit (Lipid) detects and measures hydrogen peroxide levels in biological samples using an iron and xylenol orange* (XO) reagent.

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Screen Quest™ Fluo-4 No Wash Calcium Assay Kit

Screen Quest™ Fluo-4 No Wash Calcium Assay Kit

Supplier: AAT Bioquest

Calcium flux assays are preferred methods in drug discovery for screening G protein coupled receptors (GPCR).

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Screen Quest™ Fura-2 No Wash Calcium Assay Kits

Screen Quest™ Fura-2 No Wash Calcium Assay Kits

Supplier: AAT Bioquest

Calcium flux assays are preferred methods in drug discovery for screening G protein coupled receptors (GPCR).

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Screen Quest™ Fluo-8 No Wash Calcium Assay Kit

Screen Quest™ Fluo-8 No Wash Calcium Assay Kit

Supplier: AAT Bioquest

Calcium flux assays are preferred methods in drug discovery for screening G protein coupled receptors (GPCR).

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CytoScan™ Cell proliferation assay kit, WST-1

CytoScan™ Cell proliferation assay kit, WST-1

Supplier: G-Biosciences

CytoScan™ WST-1 Cell Proliferation Assay principle is based upon the reduction of the tetrazolium salt WST-1 to formazan by cellular dehydrogenases. The generation of the dark yellow coloured formazan is measured at 420 to 480 nm (optimal at 440 nm) and is directly correlated to cell number.

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dsDNA quantitation kits for the Qubit® fluorometer, AccuGreen™, high-sensitivity and broad-range

dsDNA quantitation kits for the Qubit® fluorometer, AccuGreen™, high-sensitivity and broad-range

Supplier: Biotium

AccuGreen™ kit is specific for dsDNA and can quantify DNA samples in the range of 0,1 to 10 ng/μl.

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BCA protein assay kit (BCA-PAK)

BCA protein assay kit (BCA-PAK)

Supplier: OZ BIOSCIENCES

BCA Protein Assay kit (BCA-PAK) is useful for colorimetric detection and quantification of total protein content, even in the presence of detergents.

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MycoLight™ Flow Cytometric Live Bacteria Assay Kit

MycoLight™ Flow Cytometric Live Bacteria Assay Kit

Supplier: AAT Bioquest

The MycoLight Flow cytometric live bacteria assay kit provides an easy and convenient method for evaluating bacterial vitality as a function of the intracellular esterase activity.

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Screen Quest™ TR-FRET No Wash cAMP Assay Kits

Screen Quest™ TR-FRET No Wash cAMP Assay Kits

Supplier: AAT Bioquest

Screen Quest™ TR-FRET No Wash cAMP Assay Kit provides a convenient assay method for monitoring the activation of adenylyl cyclase in G-protein coupled receptor systems.

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Apoptosis and necrosis quantitation kits

Apoptosis and necrosis quantitation kits

Supplier: Biotium

Apoptosis and necrosis are two processes by which cells die. Apoptosis is an active, regulated disassembly of the cell from within. During apoptosis, phosphatidylserine is translocated from the inner to the outer surface of the cell, allowing the dying cell to be engulfed by phagocytic cells. Annexin V is a 35 kD Ca2+-dependent phospholipid binding protein with a high affinity for phosphatidylserine.

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Cell Meter™ Cell Viability Assay Kit *Red Fluorescence*

Cell Meter™ Cell Viability Assay Kit *Red Fluorescence*

Supplier: AAT Bioquest

Our Cell Meter™ assay kits are a set of tools for monitoring cell viability.

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VWR® Protein Precipitation Kit

VWR® Protein Precipitation Kit

Supplier: VWR Chemicals

The Protein Precipitation Kit utilises a simple trichloroacetic acid (TCA) based method to precipitate proteins in complex mixtures. Only protein in the sample is pelleted, while interfering salts and surfactants remain in the supernatant. A gentle acetone wash removes TCA and co-precipitants allowing the end-user to recover the protein in a small volume of buffer.

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PhosphoWorks™ Fluorimetric ATP Assay Kit

PhosphoWorks™ Fluorimetric ATP Assay Kit

Supplier: AAT Bioquest

Adenosine triphosphate (ATP) plays a fundamental role in cellular energetics, metabolic regulation and cellular signaling.

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Hydrogen peroxide fluorometric detection kit

Supplier: Enzo Life Sciences

The Hydrogen Peroxide Fluorometric Detection Kit provides fast results in just 10 minutes for the measurement of either hydrogen peroxide or peroxidase activity in a convenient one-step homogeneous assay.

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Live bacterial gram stain kit

Supplier: Biotium

Wheat germ agglutinin binds specifically to N-acetylglucosamine in the peptidoglycan layer of gram-positive bacteria. The Live Bacterial Gram Stain Kit contains wheat germ agglutinin (WGA) conjugated to CF™594 to stain the surface of gram-positive cells with red fluorescence. The kit also includes DAPI to stain the DNA of all bacteria with blue fluorescence. Gram-positive bacteria stained using this kit will show a fluorescent blue interior and fluorescent red cell surface, while gram-negative bacterial will be stained with blue fluorescence only.

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Catalase fluorometric detection kit

Supplier: Enzo Life Sciences

The Catalase fluorometric detection kit provides a higher throughput sensitive method for measuring catalase activity in just one hour. This is a homogeneous mix-and-read assay that enables you to monitor multiple time points for a kinetic read. Positive control is provided.

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Cytoplasmic membrane labelling kits, CellBrite™

Cytoplasmic membrane labelling kits, CellBrite™

Supplier: Biotium

CellBrite kits are designed to label cell cytoplasmic membranes with a fluorescent membrane dye pre-dissolved as an optimised staining solution. By combining CellBrite membrane stains, it is possible to label multiple cell populations with distinctive colours, a capability useful for the studies of cell-cell interactions.

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COX Colorimetric Inhibitor Screening Assay Kit

COX Colorimetric Inhibitor Screening Assay Kit

Supplier: Cayman Chemical

A colorimetric assay for the screening of isozyme-specific inhibitors.

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