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Relaxivity values r1 and r2 (s−1 mM−1) at 1.5 T and 21°C for Ba/F3 and THP-1 cell samples incubated with gadolinium oxide nanoparticles with or without protamine sulfate treatment
| r1 | r2 | r2/r1 | |
|---|---|---|---|
| Ba/F3 + protamine sulfate | 5.3 ± 0.5 | 17.2 ± 1.3 | 3.2 |
| Ba/F3 − protamine sulfate | 4.5 ± 0.5 | 13.4 ± 1.0 | 3.0 |
| THP-1 + protamine sulfate | 3.6 ± 0.3 | 9.6 ± 0.9 | 2.7 |
| THP-1 − protamine sulfate | 4.7 ± 0.8 | 13.6 ± 1.0 | 2.9 |
Note: Relaxivity calculations were based on gadolinium concentration in cells after treatment.
