Figure 3.

(A) Schematic procedure for the in-situ synthesis of ¹⁸F-labeled aza-dibenzocycloocta-triazolic mesoporous silica nanoparticles into RAW 264.7 macrophage cells in a living specimen for the cell tracking PET imaging. (B) Coronal PET/MRI fusion images of an atherosclerotic rabbit; (C) Clearance kinetics of ⁸⁹Zr-HA-NPs determined noninvasively in rabbits by measuring SUV in the aortic blood. (A) adapted with permission from ⁵² copyright 2019, Elsevier. (B) and (C) adapted with permission from ⁵⁹ copyright 2017, American Chemical Society.