Fig. 3

(A-B) TEM images of uptake of Au@Pd nanozymes by 4T1 cells; (C and E) Quantification of ROS levels produced by 4T1 and HC11 treated with different concentrations of Au@Pd nanozymes; (D and F) Fluorescence images of ROS levels produced by 4T1 and HC11 cells treated with different concentrations of Au@Pd nanozymes.^***P < 0.001