Fig. 1From: Magnetic, biocompatible FeCO3 nanoparticles for T2-weighted magnetic resonance imaging of in vivo lung tumorsSynthesis and characterization of FeCO3 NPs. A schematic representation of FeCO3 NPs synthesis. B, C are respectively low and high magnification TEM images of FeCO3 NPs. D UV–visible-NIR absorption spectra of FeCO3 NPs, aqueous dispersion of FeCO3 NPs shown in the inset. E–G HR-XPS spectra of Fe, C and O, respectivelyBack to article page