Fig. 3. Representative fluorescence images of RAW264.7 cells treated with 200 mMof H2O2. (a) control, (b) H2O2-treated cells, (c) H2O2-pretreated cells with 62 mg of HBA, (d) H2O2-pretreated cells with 50 mg of POX nanoparticles, (e) H2O2-pretreated cells with 50 mg of HPOX nanoparticles. The values are the representative percentage of positive events calculated as the events within the gate divided by total number of events