Fig. 5

Visualization of the biodistribution of graphite nanoparticles after multiple intraperitoneal injections to rats by digital camera. Solid aggregates were placed in injection body regions (a, b, c, e) and in mesentery (d), small dots of nanoparticle aggregates were in lipid tissue proximity spleen serosa (i). Black arrows indicate graphite nanoparticles aggregates. The macroscopic structure of the kidney (f), lungs (g), heart (h), spleen (i), and liver (j) were also examined. There were no macroscopic pathological features on the organs