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Cytotoxicity of Gd2O3@PCD-Glu nanoparticles measured by MTT assay in MCF 10A (a) and MDA-MB-231 (b) cells after 24 and 48 h incubation. Data is expressed as mean ± S.E.M. (n = 3). (c) Signal intensity analysis for T1-weighted MR images. (d) T1- weighted MR images of Gd2O3@PCD-Glu and Dotarem in MDA-MB-231 cells at different concentration of NPs after incubation for 6 h on 3T MR system.
