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13875 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 behavior than what can be handled by traditional chemical analysis and titration.

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Triglyceride colorimetric assay kit

Supplier: Cayman Chemical

Triglyceride Colorimetric Assay Kit is a simple, reproducible and sensitive tool for assaying triglycerides in plasma, serum, cell lysates and tissue homogenate samples.

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Cell-based assay calcein AM

Supplier: Cayman Chemical

Cellular assay, Cell-based assay calcein AM

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Protein quantitation assay kits, CB-X™ Protein assay

Protein quantitation assay kits, CB-X™ Protein assay

Supplier: G-Biosciences

CB-X™ Protein Assay is a Coomassie dye based protein assay based on the Bradford Protein Assay. For protein samples in simple, uncomplicated aqueous buffers CB-X™ is a highly sensitive, single reagent assay that can be performed in 5 minutes. For complicated protein samples, CB-X™ Protein Assay is supplied with reagents to clean up the samples and remove all reagents and chemicals that interfere with accurate protein estimation in a single step. These reagents include detergents, chaotropes, reducing agents, alkylating agents, sugars, high salt concentrations, buffering agents and chelating agents. The clean up stage and subsequent protein assay is performed in a single tube to ensure no protein loss and to maintain the accuracy of the assay.

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Caspase-3 cell assay kit

Supplier: ENZO LIFE SCIENCES

This kit is a complete assay system for measuring caspase-3 and caspase-3-like activity (DEVDase) in cellular extracts.

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Phagocytosis assay kit (IgG FITC)

Supplier: Cayman Chemical

Phagocytosis Assay Kit (IgG FITC) for the identification of factors regulating the phagocytic process in vitro.

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Thiol Detection Assay Kits

Thiol Detection Assay Kits

Supplier: Cayman Chemical

A simple, reproducible, and sensitive tool for assaying free thiol content in samples.

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Red hydrogen peroxide assay kit

Supplier: ENZO LIFE SCIENCES

Red Hydrogen Peroxide Assay Kit provides a simple absorbance-based or fluorometric assay to detect and quantify hydrogen peroxide or peroxidase activity in biochemical assays, cell extracts and in live cells. It can also be used to detect a variety of oxidase activities through enzyme-coupled reactions. The kit is an optimized ‘mix and read’ assay that is suitable for both 96- and 348-well formats and is compatible with HTS liquid handling.

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Cholesterol cell-based detection assay kit

Supplier: Cayman Chemical

Cholesterol Cell-Based Detection Assay Kit is a 192-well assay for measurement of cholesterol.

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Firefly luciferase assay kit (Lyophilised)

Supplier: Biotium

This kit is designed to measure firefly luciferase activity in transfected cell reporter assays.

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Reporter gene assays, SpectraMax® DuoLuc™ reporter assay kit

Reporter gene assays, SpectraMax® DuoLuc™ reporter assay kit

Supplier: Molecular Devices

SpectraMax® DuoLuc™ reporter assay kit offers sensitive detection of dual luciferase reporter gene assays, which are important tools for monitoring gene expression and other cellular events.

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Uric acid assay kit

Uric acid assay kit

Supplier: Cayman Chemical

Uric Acid Assay Kit is used to measure uric acid in serum, plasma and urine.

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Protease assay kit

Protease assay kit

Supplier: G-Biosciences

This Protease Assay Kit is designed for the quantitative determination of proteases present in protein sample, using a dye-labelled protein substrate. The proteases present in the sample of interest will digest the protein substrate and release dye labelled peptides. The absorbance of the dye-labelled peptide is measured at 570 nm for determination of protease activity.

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Millicell® µ-Migration Assay Kit

Millicell® µ-Migration Assay Kit

Supplier: Merck

This Kit overcomes the limitations of traditional multiwell migration assays. Its microfluidic, low-volume technology promotes a stable, diffusion-generated concentration gradient that is consistently linear and lasts for more than 48 hours.

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ApoSENSOR™ Cell viability assay kit

Supplier: ENZO LIFE SCIENCES

The assay utilizes bioluminescent detection of the ATP level for a rapid screening of apoptosis and cell proliferation simultaneously in mammalian cells. The assay utilizes the enzyme luciferase to catalyze the formation of light from ATP and luciferin. The light can be measured using a luminometer or Beta Counter. The assay can be fully automatic for high throughput (10 seconds/sample) and is highly sensitive (detects 10-100 mammalian cells/well).

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Protein assay kits, RED 660™

Protein assay kits, RED 660™

Supplier: G-Biosciences

RED 660™ Protein Assay is a single reagent colorimetric assay that outperforms many commercial colorimetric assays, including Bradford and improved Coomassie/Bradford assays. It offers greater linearity, colour stability, and compatibility with detergents, reducing agents and other interfering agents compared to the Coomassie assays. The single, ready to use reagent allows for rapid analysis of total protein concentration and generates highly reproducible results.

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Glucose Uptake Cell-Based Assay Kit

Glucose Uptake Cell-Based Assay Kit

Supplier: Cayman Chemical

A cell-based assay for studying modulators of cellular glucose uptake.

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Calcium assay kit, FluoForte®

Calcium assay kit, FluoForte®

Supplier: ENZO LIFE SCIENCES

FluoForte® Calcium Assay Kits detect mobilisation of intracellular calcium utilising a fluorogenic calcium-binding dye optimised for superior cell-permeability and retention. The self-quenching dye undergoes an electronic change upon binding of calcium, resulting in a several order of magnitude greater fluorescence.

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SREBP-1 transcription factor assay kit

SREBP-1 transcription factor assay kit

Supplier: Cayman Chemical

A 96-well assay for measurement of SREBP-1.

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SREBP-2 transcription factor assay kit

SREBP-2 transcription factor assay kit

Supplier: Cayman Chemical

96 well assay for measurement of SREBP-2.

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HAT activity assay kit

Supplier: ENZO LIFE SCIENCES

Histone acetyltransferases (HATs) have been implicated to play a crucial role in various cellular functions, such as gene transcription, differentiation, and proliferation. HAT Activity Colorimetric Assay Kit offers a convenient, nonradioactive system for a rapid and sensitive detection of HAT activity in mammalian samples.

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Calcium assay kit

Supplier: Cayman Chemical

For the determination of total calcium concentration in a variety of biological samples, as well as tissue homogenates and cell lysates.

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Fluorescent protease assay, Fluoro™

Fluorescent protease assay, Fluoro™

Supplier: G-Biosciences

The Fluoro™ Protease Assay Kit is designed for the quantitative determination of proteases present in a protein sample. The assay uses fluorescein isothiocyanate (FITC)-labelled casein as a general protease substrate. The fluorescein label on the FITC-casein is highly quenched. When the proteases present in the sample of interest digest the FITC-casein substrate into smaller peptides, the quenching of the fluorescence label is relieved and the fluorescence of the substrate is increased. The fluorescence of the FITC-labeled peptide is measured with excitation at 485 nm and emission at 530 nm to determine protease activity. The kit detects picogram level of proteases present in the sample.

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Comet SCGE assay kit

Supplier: ENZO LIFE SCIENCES

COMET SCGE Assay measures DNA damage by fluorescently detecting the integrity of DNA liberated from cells embedded in low melting point agarose. Upon electrophoresis, fragmented DNA produces a characteristic "comet" shaped tail as small DNA fragments migrate in the gel more rapidly than in-tact genomic DNA.

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Compatible Lowry protein assay

Supplier: G-Biosciences

These CL (Compatible Lowry) Protein Assay is based on the widely cited protein assay by Lowry et. al. (1951). The CL Protein Assay improves upon the traditional Lowry method to be compatible with common laboratory agents known to interfere with Lowry protein assays such as reducing agents (dithiothreitol (DTT), ß-mercaptoethanol and TCEP), detergents, chelating agents, amines, sugars, strong chaotropic buffers, salts, drugs, antibiotics, cobalt and other common laboratory agents.

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Protein quantitation assay kits, Non-Interfering™ (NI™) Protein Assay

Protein quantitation assay kits, Non-Interfering™ (NI™) Protein Assay

Supplier: G-Biosciences

A highly sensitive colorimetric protein assay that overcomes interference of common laboratory agents present in protein solutions and shows minimal protein-to-protein variation. The assay is unaffected by the presence of common laboratory agents such as reducing agents, chelating agents, detergents, amines, sugars, chaotropes, salts, drugs, antibiotics, cobalt, and others.

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Proteasome 20S Assay Kit

Supplier: ENZO LIFE SCIENCES

A QuantiZyme™ Assay System. Fluorogenic, non-radioactive assay designed to measure chymotrypsin-like protease activity of purified 20S proteasome. This 96-well assay is useful for screening inhibitors and modulators of the 20S proteasome.

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Protein carbonyl colorimetric assay kit

Supplier: Cayman Chemical

The Protein Carbonyl Colorimetric Assay Kit is for the measurement of oxidised proteins. Protein samples are derivatised by making use of the reaction between 2,4-dinitrophenylhydrazine and protein carbonyls.

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Oct4 transcription factor assay kit

Oct4 transcription factor assay kit

Supplier: Cayman Chemical

96-Well assay for measurement of Oct4.

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ATP-Glo™ Bioluminometric cell viability assay

ATP-Glo™ Bioluminometric cell viability assay

Supplier: Biotium

ATP-Glo™ Bioluminometric Cell Viability Assay offers a highly sensitive assay for quantifying ATP. The homogeneous assay involves a single addition of ATP-Glo™ Detection Cocktail directly to cells in culture medium.

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Cell proliferation assay kit, WST-1

Supplier: Cayman Chemical

WST-1 Proliferation Assay Kit provides an easy to use tool for studying the induction and inhibition of cell proliferation in any in vitro model. The assay is based on the reduction of tetrazolium salt WST-1 to soluble formazan by electron transport across the plasma membrane of dividing cells. This kit will also allow investigators to screen drug candidates involved in regulation of cell cycle.

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