Table 1. Characterization of Aptamer−Gold Conjugates.
| hydrodynamic size (diameter), nm | number of oilgonucleotide per Au nanoparticle | |
|---|---|---|
| bare Au nanoparticle | 19.3 ± 0.6 | N/A |
| Au nanoparticle + aptamer capture oilgonucleotide | 25.5 ± 1.2 | 376 ± 25 (aptamer capture) |
| Au nanoparticle + aptamer capture oilgonucleotide + anti-PSMA aptamer | 39.6 ± 3.8 | 213 ± 12 (anti-PSMA aptamer) |