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. 2024 Feb 9;12(2):142. doi: 10.3390/toxics12020142

Table 1.

Sizes (diameter, nm) of uncoated and coated NPs dispersed in the PLHC-1 and RTH-149 exposure cell media. Measures performed via DLS at the maximum exposure concentration directly after preparation (T0) and after incubation for 24 h (T24) at 30 °C (PLHC-1) or 20 °C (RTH-149) and 5% CO2. The average values of three independent measurements are presented (mean ± SEM). * PdI was close to 1, and therefore, the measured sizes are not confident enough.

PLHC-1 Medium RTH-149 Medium
NM Time
(h)
PdI Z-Average
(nm; Mean ± SEM)
Main Peak Intensity
(nm; Mean ± SEM)
PdI Z-Average
(nm; Mean ± SEM)
Main Peak Intensity
(nm; Mean ± SEM)
TiO2-UNC T0 0.25 ± 0.20 2409 ± 412 2159 ± 70 0.61 ± 0.03 603 ± 33 1047 ± 136
T24 0.53 ± 0.10 2110 ± 400 1138 ± 70 0.68 ± 0.04 546 ± 49 958 ± 20
TiO2-CIT T0 0.31 ± 0.01 281 ± 10 425 ± 22 0.25 ± 0.00 131 ± 7.6 171 ± 8
T24 0.44 ± 0.02 719 ± 12 1324 ± 70 0.30 ± 0.05 178 ± 28 241 ± 48
TiO2-PEG T0 0.16 ± 0.01 1190 ± 52 1227 ± 62 0.33 ± 0.04 941 ± 109 1215 ± 85
T24 0.28 ± 0.01 1510 ± 16 1963 ± 50 0.34 ± 0.04 807 ± 47 1019 ± 93
TiO2-DDPA T0 * - - * - -
T24 * - - * - -
CeO2-UNC T0 0.38 ± 0.03 2229 ± 234 1294 ± 219 * - -
T24 0.34 ± 0.04 1658 ± 105 1117 ± 83 * - -
CeO2-CIT T0 0.23 ± 0.02 596 ± 1 744 ± 21 0.47 ± 0.03 202 ± 23 354 ± 61
T24 0.21 ± 0.02 590 ± 5 714 ± 12 0.43 ± 0.03 207 ± 25 343 ± 52
CeO2-PEG T0 0.19 ± 0.05 821 ± 10 1015 ± 121 0.36 ± 0.02 431 ± 6 632 ± 22
T24 0.11 ± 0.04 811 ± 23 870 ± 25 0.38 ± 0.05 452 ± 14 695 ± 59
CeO2-DDPA T0 * - - 0.33 ± 0.08 242 ± 66 13 ± 3
T24 * - - 0.67 ± 0.12 426 ± 11 11 ± 1
Ag-CIT T0 0.32 ± 0.01 69 ± 1 99 ± 2 0.34 ± 0.01 61 ± 1 94 ± 2
T24 0.31 ± 0.01 70 ± 1 104 ± 3 0.38 ± 0.05 64 ± 4 105 ± 16
Ag-PEG T0 0.38 ± 0.01 325 ± 39 98 ± 13 0.51 ± 0.02 71 ± 5 118 ± 7
T24 0.43 ± 0.01 421 ± 7 93 ± 30 0.29 ± 0.05 197 ± 55 108 ± 24
Ag-OAM T0 0.33 ± 0.03 270 ± 21 187 ± 17 0.59 ± 0.10 413 ± 64 201 ± 87
T24 0.38 ± 0.05 227 ± 45 589 ± 571 0.36 ± 0.01 198 ± 53 157 ± 5