CyQUANT™ NF Cell Proliferation Assay, 1000 assays - FAQs

The original CyQUANT assay provides sensitive detection of cells over a 1000-fold linear dynamic range. In this assay, a freeze-thaw cell lysis step is required to facilitate the interaction of the CyQUANT GR dye with DNA. The CyQUANT NF assay avoids this freeze-thaw step by using a DNA binding dye in combination with a plasma membrane permeabilization reagent. The CyQUANT NF protocol requires only aspiration of growth medium (for adherent cells), replacement with dye binding solution, incubation for 30-60 minutes, and then measurement of fluorescence in a microplate reader. The assay is designed to produce a linear analytical response from at least 100-20,000 cells per well in most cell lines in a 96-well microplate.

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When CyQUANT NF dye is bound to DNA, the approximate excitation/emission is 480/520 nm. It can be detected using standard GFP or FITC filter settings.

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PrestoBlue Cell Viability Stain and CyQUANT Cell Proliferation Assay Kit can be used. We also offer a Neurite Outgrowth Staining Kit (Cat. No. A15001). More information about our different assays for neuronal cell health can be found here (https://www.thermofisher.com/us/en/home/life-science/cell-analysis/neuroscience/neuronal-cell-health-assays.html).

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.