Table 1 Effects of pH on the ZP of thiol-capped AuNPs
pH | TGA-AuNPs (mV) | MPA-AuNPs (mV) | l-cysteine-AuNPs (mV) | GSH-AuNPs (mV) | Cysteamine-AuNPs (mV) |
|---|---|---|---|---|---|
3 | −44.3 ± 11.4 | −52.1 ± 8.9 | −36.7 ± 10.5 | −50.6 ± 14.6 | +33.1 ± 8.1 |
5 | −51.7 ± 13.4 | −50.5 ± 8.6 | −43.8 ± 10.2 | −53.5 ± 10.3 | +37.0 ± 8.0 |
7 | −52.0 ± 11.5 | −49.7 ± 16.4 | −44.5 ± 8.9 | −58.4 ± 15.8 | +33.3 ± 6.8 |
9 | −54.7 ± 13.9 | −49.7 ± 14.0 | −32.9 ± 12.4 | −55.5 ± 11.0 | −27.9 ± 7.9 |
11 | – | – | – | – |