Table 1. Hydrodynamic diameter (d-nm) of nTiO2 in the microcosm, reflecting agglomeration.
| Groups | 1 h | 24 h |
|---|---|---|
| nTiO2-UZ | 395 ± 8 | 299 ± 44 |
| nTiO2-MZ | 411 ± 6 | 318 ± 41 |
| nTiO2-LZ | 411 ± 9 | 402 ± 28 |
| Ec + nTiO2-UZ | 699 ± 9** | 425 ± 10 |
| Ec + nTiO2-MZ | 521 ± 6** | 530 ± 4* |
| Ec + nTiO2-LZ | 601 ± 6** | 814 ± 15** |
| Pm + nTiO2-UZ | 742 ± 8** | 734 ± 6** |
| Pm + nTiO2-MZ | 657 ± 11** | 790 ± 19** |
| Pm + nTiO2-LZ | 781 ± 10** | 1211 ± 47** |
| Ec + Pm + nTiO2-UZ | 1036 ± 27** | 1138 ± 46** |
| Ec + Pm + nTiO2-MZ | 967 ± 6** | 1400 ± 68** |
| Ec + Pm + nTiO2-LZ | 875 ± 17** | ND |
Pm, Paramecium, Ec, E. coli. ND, not detected.
Values represented are the mean ± SE of three independent experiments.
*p < 0.05 was considered significant compared with the control.