Fig. 8. (a) Laser confocal fluorescence images illustrating the interaction between DOX, FeND–DOX, and A549 cells. (b) Confocal images for visualizing ROS in normoxic and hypoxic A549 cells treated with FeND and FeND–DOX, with and without laser exposure, determined using DCFH-DA assay. FeND–DOX incubated A549 cells showed enhanced ROS production.
