List of T1 and T2 relaxation times obtained in vitro experiments for the cells that were incubated with different concentrations of HCA-Fe–Pt NPs (0, 10, 50 and 100 μg mL−1) with the corresponding calculated T1/T1(0) and T2/T2(0) ratios. For comparison, the values for pure water (T(0)-aq) and the aqueous suspension of Fe–Pt NPs (T(Fe–Pt)-aq) are added.
| Samples | Fe conc. (μg mL) | T 1 (ms) | Ratio T1/T1(0) | T 2 (ms) | Ratio T2/T2(0) |
|---|---|---|---|---|---|
| T(0)-cells | 0 | 2340 ± 40 | 1 | 210 ± 10 | 1 |
| T(10)-cells | N/A | 2300 ± 40 | 0.98 | 63 ± 3 | 0.30 |
| T(50)-cells | N/A | 1690 ± 30 | 0.72 | 32 ± 2 | 0.15 |
| T(100)-cells | 1.14 | 1660 ± 30 | 0.71 | 36 ± 2 | 0.17 |
| T(0)-aq | 0 | 3089 ± 42 | 1 | 2077 ± 2 | 1 |
| T(Fe–Pt)-aq | 1.40 | 2206 ± 23 | 0.71 | 364 ± 2 | 0.18 |