Table 2.
Suspension characteristics of MWCNTs in dispersion mediumaused for oropharyngeal aspiration in mice
| MWCNT | Size distributionb | pDi | Zeta potential (mV) | |
|---|---|---|---|---|
| Z-Avg Diameter nm |
Multi-mode distribution peaks Diameter nm (% peak area) |
|||
| NC7000 | 399 ± 6 |
259 ± 36 (55%) 1652 ± 1194 (45%) |
0.57 | −16.8 ± 1.4 |
| TP7000 | 1626 ± 265 |
683 ± 205 (82%) 193 ± 91 (19%) |
1 | − 14.6 ± 1.1 |
| TP-COOH | 932 ± 49 |
716 ± 337 (83%) 174 ± 39 (17%) |
0.83 | −15.7 ± 1.4 |
| TP-NH2 | 1590 ± 114 |
992 ± 214 (75%) 267 ± 39 (25%) |
0.97 | − 18.0 ± 0.4 |
| CP7000 | 1359 ± 169 |
719 ± 403 (60%) 200 ± 12 (40%) |
1 | −15.3 ± 1.4 |
| CP-COOH | 484 ± 48 |
637 ± 145 (57%) 153 ± 29 (43%) |
0.72 | − 24.0 ± 0.9 |
| CP-NH2 | 1897 ± 216 | 918 ± 85 (100%) | 0.80 | −17.6 ± 1.2 |
| Mitsui-7 | 985 ± 73 |
919 ± 227 (92%) 3292 ± 2685 (8%) |
0.46 | −14.8 ± 0.8 |
aMWCNTs were diluted in dispersion medium (0.1% Pluronic solution in sterile DPBS + 3% BSA) to a concentration of 50 μg/ml prior to DLS analysis
bValues are mean ± standard deviation of 4–5 independent measurements. Multimode distribution is presented as diameter of different peaks and % area occupied by that peak (relative contribution)