Principle of Assay
Annexin Fluorescent Dye 488 Labelled / PI Apoptosis Detection kit contains Annexin V labeled with a proprietary green fluorescent dye, which allows the identification and quantitation of apoptotic cells by flow cytometry or fluorescence microscopy. Simultaneous staining of cells with Annexin Fluorescent-488 and propidium iodide (PI) allows the discrimination of intact cells, early apoptotic and late apoptotic or necrotic cells. Superior to FITC as it is brighter, not affected by pH, and has much better photostability.