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- W2133797576 abstract "The oleate-capped β-NaGdF4 nanoparticles (NPs) with uniform size and high crystallinity synthesized by thermal decomposition were converted to water-dispersible Gd3+–NaGdF4, LF-NaGdF4, and TETT-NaGdF4 NPs via different surface modifications with GdCl3, HCl, and carboxylic silane, respectively. The effect of surface functionalities on relaxation properties and T1-weighted MR images were investigated. In vitro relaxivity measurements revealed that the r1 value of Gd3+–NaGdF4 (4.64 mM−1 s−1) was higher than that of TETT-NaGdF4 (1.81 mM−1 s−1) and LF-NaGdF4 (0.85 mM−1 s−1). In vivo liver MRI consistently showed that the T1-weighted signal obtained from Gd3+–NaGdF4 was stronger than that from TETT-NaGdF4 and LF-NaGdF4 at an equivalent Gd3+ dosage. These findings suggest that different surface functionalities play an important role in manipulating the relaxometric properties of NaGdF4 NPs. In addition, the excellent biocompatibility of the water-dispersible NPs was demonstrated by in vitro cytotoxicity assays (MTT) in C6 cells and in vivo histological analyses (H&E) of major organs." @default.
- W2133797576 created "2016-06-24" @default.
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- W2133797576 date "2013-01-01" @default.
- W2133797576 modified "2023-10-18" @default.
- W2133797576 title "Effect of surface functionalities on relaxometric properties of MR contrast agents based on NaGdF4 nanoparticles" @default.
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- W2133797576 doi "https://doi.org/10.1039/c3ra22505d" @default.
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