Table 1 The r1 and r2 values of different samples under different magnetic fields
From: Ultrasmall Fe3O4 and Gd2O3 hybrid nanoparticles for T1-weighted MR imaging of cancer
Sample nomenclature | H0 (T) a | dh (nm) b | Gd/Fe c | r1 (mM−1S−1) | r2 (mM−1S−1) | r2/r1 |
|---|---|---|---|---|---|---|
US-IO | 3 | 11.8 | – | 0.512 | 2.1797 | 4.257 |
1.5 | 11.8 | – | 0.3822 | 1.7985 | 4.706 | |
Gd2O3@Gly | 3 | 15.48 | – | 9.9529 | 48.852 | 4.908 |
1.5 | 15.48 | – | 24.838 | 117.22 | 4.719 | |
Gd2O3@CMD | 3 | 28.12 | – | 10.351 | 41.752 | 4.034 |
1.5 | 28.12 | – | 12.365 | 50.555 | 4.089 | |
FG-HNPs1 | 3 | 39.11 | 0.25 | 2.9719 | 18.719 | 6.299 |
1.5 | 39.11 | 0.25 | 8.6222 | 100.12 | 11.612 | |
FG-HNPs2 | 3 | 43.15 | 0.5 | 42.28 ± 1.87 | 59.86 ± 2.53 | 1.416 ± 0.01 |
1.5 | 43.15 | 0.5 | 43.55 ± 1.85 | 58.68 ± 1.54 | 1.35 ± 0.1 | |
FG-HNPs3 | 3 | 45.6 | 1.0 | 28.155 | 41.714 | 1.482 |
1.5 | 45.6 | 1.0 | 35.173 | 50.301 | 1.43 | |
FG-HNPs4 | 3 | 49.72 | 2.0 | 24.412 | 38.864 | 1.592 |
1.5 | 49.72 | 2.0 | 25.209 | 41.317 | 1.639 | |
FG-HNPs5 | 3 | 51.16 | 3.0 | 8.8134 | 137.04 | 15.549 |
1.5 | 51.16 | 3.0 | 24.158 | 141.36 | 5.851 | |
Dotarem | 3 | – | – | 3.12 ± 0.7 | 3.98 ± 0.21 | 1.278 ± 0.1 |
1.5 | – | – | 2.96 ± 0.1 | 4.77 ± 0.14 | 1.61 ± 0.02 |