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Physical Properties of Thiol-Modified Silica Nanoparticles Used in This Work
| diameter (nm) | pore diameter (nm) | zeta potential (pH 5–6 H2O, mV) | surface area per particle (nm2) | thiols per particle | |
|---|---|---|---|---|---|
| dSiO2 | 90 ± 10 | no mesopores | −36 ± 1 | 3.2 × 104 | 2.3 × 106 |
| MSN (3 nm pores) | 65 ± 5 | ~3 | −44 ± 2 | 3.5 × 104 | 5.6 × 106 |
| MSN (5 nm pores) | 150 ± 5 | ~5 | −44 ± 1 | 5.6 × 105 | 2.2 × 108 |
