The ROS Detection Assay kit (Green Fluorescence) is a cell-based assay designed for measuring Reactive Oxygen Species (ROS) activity within a cell using the cell-permeable fluorogenic probe 2’, 7’-Dichlorodihydrofluorescein diacetate (DCF-DA). Once DCF-DA has diffused into cells it is deacetylated by cellular esterases to a non-fluorescent compound and rapidly oxidized by ROS into DCF. DCF is highly fluorescent and can be detected by microscopy, titration in microplate and also cytometry (ex 485/em 535). The fluorescence intensity that results is proportional to the ROS levels within the cell. Each ROS Kit provides sufficient reagents for approximately 300 measurements in microplate format and includes Tert-Butyl hydroperoxide (organic peroxide) solution provided as a positive control for ROS generation. Main Features: *Measure ROS production in live cells *Ideal for fluorescence microscopy, microplate titration and cytometry *Compatible with adherent cells as well as suspension cells