Fig. 3From: Green Synthesis of Metal and Metal Oxide Nanoparticles and Their Effect on the Unicellular Alga Chlamydomonas reinhardtiiPercentage of Chlamydomonas reinhardtii cells exhibiting oxidative stress following exposure to increasing concentrations (1, 5, 10, and 20 mg/L) of a Au, b Pt, c Pd, d Ag and e CuO nanoparticles after 1, 3, 5 and 24 h. The error bars represent the standard deviation of repeated experiments using duplicate samples. Note different y-axis scales for Au and PtBack to article page