Fig. 3

Que-Mg@SA microspheres effectively attenuate the H2O2-induced fluorescence intensity of total ROS and common ROS. Fluorescence micrographs and intensity quantification display the activities of Que-Mg@SA microspheres to scavenge (A-B) total ROS, (C-D) ·OH, and (E-F) ·O2− in chondrocytes with H2O2 treatment. *, p < 0.05; ***, p < 0.001