Table 2 Effects of ionic strength on the ZP of thiol-capped AuNPs
NaOH (μM) | TGA-AuNPs (mV) | MPA-AuNPs (mV) | l-cysteine-AuNPs (mV) | GSH-AuNPs (mV) | Cysteamine-AuNPs (mV) |
|---|---|---|---|---|---|
106 | – | – | – | – | |
105 | – | – | – | – | |
104 | −44.9 ± 11.7 | −28.9 ± 12.6 | −39.7 ± 14.0 | −56.1 ± 16.4 | −31.4 ± 12.1 |
103 | −49.7 ± 8.2 | −31.3 ± 5.9 | −40.6 ± 12.6 | −57.5 ± 12.9 | −21.2 ± 12.4 |
102 | −52.6 ± 13.2 | −36.3 ± 15.0 | −55.0 ± 16.9 | −60.5 ± 13.0 | −6.07 ± 4.6 |
101 | Not measured | Not measured | Not measured | Not measured | +38.5 ± 7.2 |
0.1 | Not measured | Not measured | Not measured | Not measured | +50.9 ± 11.9 |