It is possible to observe precipitate in HBSS buffer. The precipitate does not have an impact on the use of this kit, nor the results that are gathered from its use.
What is the difference between the original CyQuant assay and the CyQuant NF assay?
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.
Do you offer any products to measure neuronal cell health?
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).