Abstract
Multiple molecular imaging is a challenging subject. Water-soluble and biocompatible lactobionic acid coated ultrasmall mixed gadolinium-europium oxide nanoparticles with an average particle diameter of 1.75 nm and an average hydrodynamic diameter of 4.16 nm were synthesized and applied for T1, T2 MRI-FI in vitro and in vivo. They had r1 and r 2 values of 11.9 and 38.7 s-1 mM-1, respectively, and showed clear dose-dependent contrast changes in both R 1 and R2 map images. In addition, they showed both positive and negative contrast enhancements in 3 tesla T1 and T 2 MR images in a mouse, respectively, and fluorescent confocal images in both DU145 cells and C. elegans (a small nematode). This study demonstrates the T1, T2 MRI-FI multi-functionality of lactobionic acid coated mixed gadolinium-europium oxide nanoparticles.
Original language | English |
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Pages (from-to) | 2361-2367 |
Number of pages | 7 |
Journal | New Journal of Chemistry |
Volume | 36 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2012 |