Table 1.
Size analysis of five QDS studied
| QDs/methods | QD 565 (Cd/Se) | QD 605 (Cd/Se) | QD 655 (Cd/Se) | QD 705 (Cd/Te) | QD 800 (Cd/Te) |
|---|---|---|---|---|---|
| DLSa (diameter in nm) | 15.0 ± 6.0 | 15.4 ± 4.3 | ND1 | ND1 | 16.9 ± 7.3 |
| TEMb (diameter in nm) | 7.8 ± 0.5 | 10.3 ± 0.5 | 13.4 ± 0.7 | 9.7 ± 0.3 | 12.0 ± 0.5 |
| HPLCc elution time (min) | 17.24 ± 0.01 | 17.01 ± 0.01 | 16.85 ± 0.01 | 16.97 ± 0.01 | 16.85 ± 0.00 |
| diameter (nm) | (16.3 nm) | (17.1 nm) | (18.9 nm) | (18.0 nm) | (18.8 nm) |
a
Not determined: data is not reliable because of the fluorescence contamination in the signal.
b
TEM: sizes of well-separated 50 particles in each sample were measured.
c
Standard proteins: IgM (24.2 nm); 16.08 ± 0.00, thyroglobulin; (17.0 nm); 17.11 ± 0.01 min, IgG (11.0 nm); 18.17 ± 0.00 min.