Quantification of number of live and dead cells is an indispensable tool in cell biology research. Intended Use:Screening/studying/characterization of stimulators/inhibitors that affect cell viability.Sample Type:Adherent cells or suspension cells.Specificity:MammalianTest Principle:The Live/Dead Cell Viability BioAssay Kit,provides a two-color fluorescence method that is based on the simultaneous determination of live and dead cells using two different dyes. Live cell dye easily penetrates intact,live cells and intracellular esterase hydrolyzes the dye to produce a hydrophilic,strongly fluorescent compound that is retained in the cell cytoplasm which can be measured at Ex/Em = 485/530 nm. Dead cell dye enters damaged cell membranes and undergoes a 40-fold enhancement of fluorescence upon binding to nucleic acid,thereby producing a bright red fluorescence (Ex/Em = 495/635 nm) in dead cells. This assay kit provides an easy-to-use,non-radioactive,histological and FACS- based method for measuring cell proliferation,cell viability,chemotaxis,cytotoxicity and apoptosis.Kit Components:Assay Buffer,1x100mlLive Cell Staining Dye,1x1vialDead Cell Staining Dye,1x10ulStorage and Stability:Store powder at 4°C liquid at -20°C. Store other components at 4°C. Stable for at least 6 months For maximum recovery of product,centrifuge the original vial after thawing and prior to removing the cap.