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Confocal microscopy of living KYO-1 cells treated for 12 h with asPNA-FL or NLS-asPNA-FL and stained with the vital dye hexidium iodide. (Top) Uptake at 37°C by KYO-1 cells treated with 10 µM asPNA-FL. (Bottom) Uptake by KYO-1 cells treated with 10 µM NLS-asPNA-FL. Bar 5 µm.
