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Representative time traces of fluorescent signals monitored in the polarity Sensor for Viability and Apoptosis (pSIVA) (A) and propidium iodide (PI) (B) channels. A few typical traces are highlighted in green and red, respectively. The first apoptotic events are observed after 3 h whereas the majority of induced cell deaths occur after 20 h. The decrease in the pSIVA signal at late times can be attributed to bleaching of the fluorophores. Fluorescent signals are background corrected.
