Table 1.
Size, zeta(ζ)-potential, and UV-Vis spectra of modified gold nanoparticles (AuNPs) in deionized (DI) water. Hydrodynamic radii, ζ-potential values are represented as means ± standard deviation (n = 3) for all AuNPs.
| Sample | Ligand structure | pI value | Hydrodynamic raddi (nm) | Polydispersity index (PDI) | ζ-potential (mV) | λ-max (nm) |
|---|---|---|---|---|---|---|
| Mesna-AuNPs | NaSO3CH2CH2SH | — | 32.8 ± 0.5 | 0.246 | −42.8 ± 11.8 | 524 |
| AP1-AuNPs | Acetyl-Asp-Asp-Asp-Tyr-Cys | 3.6 | 36.6 ± 0.9 | 0.171 | −22.3 ± 0.5 | 530 |
| AP2-AuNPAPs | Acetyl-Glu-Glu-Glu-Gly-Tyr-Cys | 3.8 | 25.2 ± 0.3 | 0.243 | −20.4 ± 1.2 | 525 |
| AP3-AuNPs | Acetyl-Asp-Asp-Asp-Gly-Tyr-Cys | 3.6 | 24.8 ± 0.3 | 0.195 | −13.3 ± 0.4 | 529 |
| mPEG350-AuNPs | CH3O(CH2CH2O)nCH2CH2SH | — | 29.3 ± 0.9 | 0.210 | −3.2 ± 5.9 | 527 |
| NP1-AuNPs | Asp-Asp-Asp-Tyr-Cys | 3.3 | 30.4 ± 1.4 | 0.167 | 4.6 ± 0.5 | 530 |
| NP2-AuNPs | Ala-Ala-Ala-Gly-Tyr-Cys | 5.3 | 24.9 ± 0.5 | 0.256 | −5.2 ± 0.6 | 527 |
| NP3-AuNPs | Acetyl-Ser-Ser-Ser-Gly-Tyr-Cys | 7.0 | 24.7 ± 0.5 | 0.256 | −7.2 ± 1.1 | 527 |
| MUAM-AuNPs | NH2CH2(CH2)9CH2SH | — | 49.1 ± 1.3 | 0.226 | 41.8 ± 3.8 | 522 |
| CP1-AuNPs | Arg-Arg-Arg-Gly-Tyr-Cys | 11.1 | 45.1 ± 0.4 | 0.280 | 31.4 ± 1.5 | 526 |
| CP2-AuNPs | Lys-Lys-Lys-Gly-Tyr-Cys | 10.1 | 38.7 ± 0.4 | 0.266 | 27.8 ± 3.8 | 532 |
| CP3-AuNPs | Arg-Gly-Tyr-Cys | 8.6 | 40.6 ± 1.4 | 0.251 | 24.1 ± 2.0 | 524 |
| CP4-AuNPs | Lys-Gly-Tyr-Cys | 8.6 | 32.8 ± 1.4 | 0.242 | 22.3 ± 1.0 | 533 |
| CP1M1-AuNPs | Arg-Arg-Arg-Gly-Tyr-Ahx-Cys | 11.1 | 48.1 ± 0.1 | 0.256 | 22.1 ± 0.6 | 533 |
| CP1M2-AuNPs | Arg-Arg-Arg-Gly-Tyr-Lys-C11-Cys | 11.4 | 35.0 ± 0.6 | 0.276 | 26.7 ± 2.1 | 526 |