Fig. 4From: Novel Biocompatible Au Nanostars@PEG Nanoparticles for In Vivo CT Imaging and Renal Clearance PropertiesCT images of rat before injection (a) and at different time points (0.5, 1, 2, 6, and 24 h) (b–f) after intravenous injection of AuNS@PEG nanoparticles (200 ppm)Back to article page