Table 1.
Water Proton Relaxivity and Relaxation Times of Proton Resonances in Dendrimeric Chelates at 35 °C
| paramagnetic Chelates | field strength (T) | r1 (s−1mM−1) | r2 (s−1mM−1) | P1 | P2 | ||
|---|---|---|---|---|---|---|---|
|
| |||||||
| T1 (ms) | T2 (ms) | T1 (ms) | T2 (ms) | ||||
| G1-(TmDOTA)6 | 11.7 | 0.21 ± 0.02 | 1.0 ± 0.1 | 3.1 ± 0.1 | 0.43 ± 0.01 | 2.5 ± 0.1 | 0.36 ± 0.01 |
| G2 -(TmDOTA)12 | 11.7 | 0.22 ± 0.02 | 1.5 ± 0.1 | 2.7 ± 0.1 | 0.34 ± 0.02 | 2.1 ± 0.1 | 0.31 ± 0.02 |
| G2 -(TmDOTA)12 | 4 | - | - | 2.6 ± 0.1 | 0.42 ± 0.02 | 2.0 ± 0.1 | 0.36 ± 0.02 |
| Rhodamine-G2-(TmDOTA)12 | 11.7 | - | - | 2.8 ± 0.1 | 0.33 ± 0.02 | 2.4 ± 0.1 | 0.32 ± 0.02 |
| G3 -(TmDOTA)25 | 11.7 | 0.26 ± 0.03 | 1.8 ± 0.2 | 2.7 ± 0.1 | 0.25 ± 0.01 | 2.3 ± 0.1 | 0.20 ± 0.02 |
| G4 -(TmDOTA)39 | 11.7 | 0.27 ± 0.03 | 2.1 ± 0.2 | 3.0 ± 0.1 | 0.12 ± 0.01 | 1.9 ± 0.1 | 0.12 ± 0.01 |