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Oligomers effects on A375 (a) and WM266-4 (b) viability. Cells were treated with polymers A and B or EC (10 μg/ml) for 6 days and cell death was analysed by fluorescence-activated cell sorter (FACS). Results are expressed as percentage of apoptotic and late apoptotic/necrotic cells in all samples. Data are shown as mean ± SEM. ∗p < 0.05. CAM− identifies apoptotic cells (Calcein-AMlow) and CAM− PI+ identifies late apoptotic/necrotic cells (Calcein-AMlow, propidium iodide treated).
