Is-BetA selectively
generates reactive oxygen species (ROS) in
cancer cells. Noncancer (NIH 3T3) and cancer cells (B16F10) were treated
with Is-PMB, Is-amine, BetA, Is-BetA, and Dox, respectively, or kept
untreated (UT). ROS as generated in respective cells were microscopically
visualized in 20× magnification.