Fig. 7. In vivo toxicity analysis. (A) The hemolytic rates of red blood cells incubated with Au–Gd NCs with different concentrations. (B–F) The serum level of biochemical variables of mice 10 days after IV injection of physiological saline and Au–Gd NCs, respectively. The blue box indicates the normal baseline of mice. Error bars represent one standard deviation above the mean. (G) H&E staining of major organs (brain, heart, lung, liver, spleen, and kidney) from PBS treated and Au–Gd NC treated mice. Scale bar = 100 μm.
