Table 1.
Radioactivity excretion and stomach uptake for nontargeted nanoprobe and RGD-nanoprobe
| Specimen | Nontargeted nanoprobe |
RGD-nanoprobe |
||||
|---|---|---|---|---|---|---|
| 4 h | 24 h | 48 h | 4 h | 24 h | 48 h | |
| Stomach† | 1.54 ± 0.25 | 1.77 ± 0.34 | 1.96 ± 0.28 | 1.24 ± 0.22 | 1.65 ± 0.76 | 2.55 ± 0.40 |
| Urine | 8.53 ± 5.68* | 24.15 ± 1.58* | 31.79 ± 1.78* | 2.26 ± 0.64 | 3.58 ± 0.33 | 3.95 ± 0.24 |
| Feces | 0.00 ± 0.00 | 0.78 ± 0.57 | 3.20 ± 0.35 | 0.02 ± 0.02 | 2.12 ± 1.04 | 4.39 ± 1.14 |
Data represent the mean (n = 4) injected dose per organ ± standard deviation (*, P < 0.05 with respect to RGD nanoprobe).
†Including stomach contents.