Table 2. Zeta-Potential of NP-A and NP-B after Addition of CTAB/CTAC to NP-A or Citrate to NP-B in the Concentrations Used for the Self-Assembly Experiments.
| zeta-potential
(mV) |
||
|---|---|---|
| heterodimer NP-A–NP-B | NP-Aa | NP-Bb |
| Au–Pd(cube small) | –18.6 (1) | 20.6 (1.5) |
| Au–Pd(cube big) | –15.1 (2) | 20.3 (1.5) |
| Au–Pd(truncated cube) | –13.0 (2) | 24 (2) |
| Au–Pd(octahedron) | –13.0 (2) | 21 (1) |
| Au–Pd(rhom.dodeca.) | –13.0 (2) | 36.3 (2) |
| Au–Au(rhombic) | –8.4 (1) | 30 (1) |
| Au–Au(cube) | –8.4 (1) | 30 (1) |
| Ag–Pd(cube small) | –18.3 (2) | 18.8 (2) |
| Ag–Pd(cube big) | –12.4 (2) | 19.5 (2) |
| Ag–Au(cube) | –5.4 (1) | 28.5 (1) |
a
After adding CTAB/CTAC as in self-assembly experiments.
b
After adding citrate as in self-assembly experiments.