Fig. 1From: Lanthanide-based metal–organic frameworks solidified by gelatin-methacryloyl hydrogels for improving the accuracy of localization and excision of small pulmonary nodulesFabrication and characterization of the Eu-MOF. A Schematic diagram outlining the synthesis of the Eu-MOF. B TEM and mapping images of the Eu-MOF. C XRD pattern of the Eu-MOF. D Excitation (Ex, blue line) and emission (Em, red line) spectra of the Eu-MOF. The inset shows a suspension of the fluorescent Eu-MOF under 365 nm UV light excitationBack to article page