Fig. 2From: An enhanced antioxidant strategy of astaxanthin encapsulated in ROS-responsive nanoparticles for combating cisplatin-induced ototoxicityIn vitro cellular uptake of FITC-PPS-NP. A Confocal images demonstrated cellular uptake of FITC-PPS-NP for various periods of time (1, 3, 6, 12 and 24 h) in HEI-OC1. B, C Flow cytometry assay of cellular uptake and quantifications of MFI of FITC. D Endocytosis mechanism of PPS-NP. **p < 0.01 vs control, ***p < 0.001 vs controlBack to article page