Fig. 3
In vitro study of dual-modal imaging. A Fluorescence images of a 2-h observation of porcine lung segments injected with an ICG aqueous solution, a GelMA solution, a Eu-MOF/H2O suspension, and a Eu-MOF/GelMA suspension. B Fluorescence images of a 24-h observation of porcine lung segments injected with Eu-MOF/H2O and Eu-MOF/GelMA suspensions. C Fluorescence intensities of the injection sites of the porcine lung segments injected with Eu-MOF/H2O and Eu-MOF/GelMA suspensions (5 min and 2 h after injection). D Fluorescence intensity variations of a 24-h observation of porcine lung segments injected with Eu-MOF/H2O and Eu-MOF/GelMA suspensions. E CT images of porcine lung segments taken 2 h after injection with an ICG aqueous solution, a GelMA solution, a Eu-MOF/H2O suspension, and a Eu-MOF/GelMA suspension. F CT values of the injection sites of porcine lung segments. *P < 0.05, **P < 0.01