Fig. 4

a–d Images showing cells incubated in presence of chitosan: a, b IOSE-121 normal cells or c, d OV2008 tumor cells incubated for 10 min and 1 h. e–h Images showing cells incubated with chitosan/noisome/paclitaxel (0.4 µM) system: e, f IOSE-121 normal cells or g, h OV2008 tumor cells incubated for 10 min and 1 h. Scale bar = 10 µm