Table 1. Average Hydrodynamic Diameters of Citrate and Peptide/Amphiphile-Capped GNPsa.
| coating identity | hydrodynamic diameter, nm | ||
|---|---|---|---|
| citrate | 22.0 | 43.5 | 101 |
| 1 | 35.1 | 51.3 | 115 |
| 2 | 30.1 | 51.3 | 172 |
| 3 | 33.6 | 54.6 | 113 |
| 4 | 28.8 | 48.3 | 234 |
| 5 | 21.0 | 225 | x |
| 6 | 23.3 | 110 | x |
| 7 | 23.4 | 155 | x |
a
Values in red indicate aggregation was observed, and ‘x’ indicates that the coating experiments were not conducted as aggregation occurred for a smaller GNP size. Three independent measurements were recorded, and an average hydrodynamic diameter was calculated. For representative size distribution profiles, see Figure S2.