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Fig. 2 | Journal of Nanobiotechnology

Fig. 2

From: Magnetic, biocompatible FeCO3 nanoparticles for T2-weighted magnetic resonance imaging of in vivo lung tumors

Fig. 2

Structural and functional properties of FeCO3 NPs. A Magnetic hysteresis loops of FeCO3 NPs at 300 K. B T1 and T2-weighted magnetic contrast properties of FeCO3 NPs in aqueous media. C r1 and r2 values of FeCO3 NPs with respect to the Fe ion concentration. D T2 weighted MRI phantoms of FeCO3 NPs at pH 5.5 and 7.0. E r2 relaxivity values of FeCO3 NPs at pH 5.5 and 7.0. F Hemolysis assay of FeCO3 NPs at different concentrations, H2O and 0.9% NaCl were respectively used as negative and positive controls (inset show optical images of assay aliquots). G T2-weighted MR contrast ability of lung cancer cells in vitro, pre and post-24 h incubation of FeCO3 NPs

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