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Calculated number of ligands and resulting molecular mass of the AuNPs and retention in HPLC.
| Probe | Description | Number of Ligands | Molecular Mass [kDa] | Retention Time HPLC [min] |
|---|---|---|---|---|
| 1 | AuNP-PEG | 500 PEG3-OH | 345 | 6.48 |
| 2a | AuNP-PEG-maleimide | 130 PEG4-maleimide | 361 | 6.10 |
| 7 | AuNP-RGD | 60 RGD | 405 | 5.98 |
| 8 | AuNP-RGD-NIR-dye | ~50 RGD, 10 NIR-dye | 413 | 6.20 |
