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MTT Cell Viability Assay Kit

MTT Cell Viability Assay Kit provides a simple method for determining live cell numbers using a standard colorimetric plate readers. Determination of live cell numbers is often used to assess the rate of cell proliferation and cytotoxicity caused by drugs and cytotoxic agents.

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Apoptosis/viability marker

Metabolic activity

For live or fixed cells

Cell lysis required

Detection method/readout

Microplate reader (absorbance)

Assay type/options

Endpoint assay, No-wash staining, Real-time imaging, Homogenous assay

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1,000 assays
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Product Description

The MTT Cell Viability Assay Kit provides a simple method for determining live cell numbers using a standard colorimetric plate readers. Determination of live cell numbers is often used to assess the rate of cell proliferation and cytotoxicity caused by drugs and cytotoxic agents. Among all non-radioactive viability assays, MTT assay developed by Mossman is one of the most versatile and popular assays. MTT is a tetrazolium salt that is turned into a purple formazan product after reduction by mitochondrial enzymes that are only present in metabolically active live cells, not in dead cells. The amount of formazan product generated is proportional to the number of living cells in the sample. At the end of the assay, the cells containing the formazan product are solubilized and then photometrically quantified at 570 nm.

Also see the XTT Cell Viability Assay Kit, which does not require solubilization before absorbance measurement.

References

1. J Immunol Meth 174, 311 (1994).

2. J Immunol Meth 145, 199 (1991)

3. J Immunol Meth 131, 165 (1990).

4. Cancer Res 48, 598 (1988).

 

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Support & Faq

Apoptosis, Necrosis, and Cell Viability Kits

Fixation is not recommended after staining with the Viability/Cytotoxicity Assay Kit (cat. # 30027) as the dead cell dye, EthD-III will transfer to all cells and not maintain dead cell-specific staining.

Viability qPCR (vPCR) can be an alternative strategy. Using dead cell-specific dyes, PMA (cat. # 40019) or PMAxx (cat. # 40069) that covalently modify DNA (of only dead cells) after photo-crosslinking, a simple quantitative PCR (qPCR) amplification is used to selectively amplify live-cell DNA. Learn more about the vPCR technology.

Category: Apoptosis, Necrosis, and Cell Viability Kits

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The ViaFluor® SE dyes are susceptible to hydrolysis. Ideally the DMSO stock solution should be prepared on the day of use, with the intent that each vial supplied is for single use. If smaller aliquots are desired, it would be best to aliquot the initial DMSO stock, at the time of reconstitution, into single use quantities and store at -20C, protected from light and moisture (desiccated), for up to a month. However, activity may be reduced over time. The dyes should only be added to aqueous buffer immediately before staining. The aqueous solution cannot be stored for reuse.

Category: Apoptosis, Necrosis, and Cell Viability Kits

← FAQs

MTT and XTT are colorimetric based assays, while resazurin can be measured using colorimetric or fluorescence detection. MTT is not a soluble product, so the cells must be lysed to solubilize the formazan salt before absorbance can be measured. XTT and resazurin do not require cell lysis, allowing kinetic monitoring of the same samples at different timepoints.

Category: Apoptosis, Necrosis, and Cell Viability Kits

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