Table 1. Properties of nanoparticles used in this study.
| Nanoparticle | Catalog # | CAS No. | Size, nma | SSA, m2/ga | HDD, nm (Z-potential, mV) in nanopure waterb | HDD, nm (Z-potential, mV) in PCR bufferb |
|---|---|---|---|---|---|---|
| Fe2O3 | MKBT1848V | 1309-37-1 | 35 | 50–245 | 878 ± 152 (9.54 ± 1.39) | 941 ± 205 (−7.20 ± 0.30) |
| ZnO | MKBS1930V | 1314-13-2 | 63 | 17 | 310 ± 9 (−13.13 ± 1.12) | 359 ± 11 (−14.97 ± 0.42) |
| CeO2 | MKBT0543V | 1316-38-3 | <25 | N/A | 179 ± 1 (6.90 ± 0.49) | 528 ± 103 (−12.07 ± 0.67) |
| Fe3O4 | MKBS1797V | 1317-61-9 | <100 | >60 | 712 ± 89 (−3.89 ± 1.19) | 971 ± 102 (−7.28 ± 0.85) |
| Al2O3 | BCBK5287V | 1344-28-1 | <50 | >40 | 568 ± 122 (22.67 ± 1.86) | 711 ± 93 (1.31 ± 0.23) |
| CuO | MKBN9141V | 1317-38-0 | <50 | 29 | 611 ± 85 (−17.70 ± 0.78) | 741 ± 51 (−14.80 ± 0.40) |
| TiO2 | MKBS8073V | 13463-67-7 | 21 | 51 | 676 ± 41 (−10.22 ± 2.10) | 718 ± 38 (−5.85 ± 0.56) |
Notes:
a
The diameter of NPs reported by the manufacturer (Sigma-Aldrich).
b
Measured using Zetasizer Nano ZS-90 (Malvern Instrument Ltd.) immediately after dispersing NPs in aqueous media.
SSA, specific surface area; HDD, hydrodynamic diameter; N/A, not available.