Figure 7: Comet images of DU145 (a) and human foreskin fibroblasts (b) cells after treatment with doxorubicin; 0.05 μM and zinc oxide nanofluid; 0.95 μg/ml alone or in combination in the absence or presence of irradiation. The arrow indicates migrated DNA. Magnification, ×200. (c) Graph represents means ± standard deviation of percent of tail DNA% from 100 cells