Fig. 6

Cellular uptake studies. a FACS analysis of A549 cells following incubation with the PLGA NPs containing PS-155 and PS-155/NLS combination (10,000 cells were selected for the number of events). b Fluorescent images of A549 cells incubated with PLGA NPs for 24 h, followed by brief washing with PBS and incubation with DAPI (nuclear staining) and MemBrite™ (cell membrane staining). Blue: nucleus (DAPI), Red: PS oligomers (TAMRA), Green (cell membrane). The images were elaborated with ImageJ for clarity purpose