Fig. 5. (a) Time-dependent fluorescence imaging of HepG2-bearing mice intravenously injected with the PEG@NCPs. (b) Quantification of the fluorescence trends of the liver, tumor, and bladder of mice after intravenous injection with the PEG@NCPs. (c) MR images and (d) CT images of HepG2-bearing mice before and after injection with the PEG@NCPs. The white arrows and red circles indicate the liver and tumor, respectively.
