Fig. 4From: Overcoming anticancer resistance by photodynamic therapy-related efflux pump deactivation and ultrasound-mediated improved drug delivery efficiencyIntracellular ROS generation. The reactive oxygen species (ROS) generation in MCF-7/ADR cells was determined with or without laser irradiation after DOX-NPs/Ce6-MBs treatment with US irradiation (0.2 W/cm2, 50% duty cycle, 30 s)Back to article page