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Table 2 Size characterization of TiO2 in stock and exposure media (HBE,Caco2 and THP-1) using DLS

From: Agglomeration of titanium dioxide nanoparticles increases toxicological responses in vitro and in vivo

   Stock DMEM/F12
(HBE)
DMEM/HG
(Caco2)
RPMI 1640
(THP-1)
Z-avg PDI Z-avg PDI Z-avg PDI Z-avg PDI
17 nm-SA 0 h 600 0.34 670 0.27 630 0.31 1140 0.18
24 h 600 0.35 850 0.24 1580 0.28 1035 0.22
17 nm-LA 0 h 900 0.42 900 0.27 870 0.30 1350 0.30
24 h 800 0.40 980 0.20 1546 0.24 1330 0.25
117 nm-SA 0 h 280 0.18 690 0.19 547 0.18 1010 0.18
24 h 290 0.19 750 0.20 1145 0.40 900 0.18
117 nm-LA 0 h 580 0.36 630 0.26 630 0.26 880 0.30
24 h 590 0.37 650 0.21 1300 0.57 960 0.23
  1. Stock suspensions (2.56 mg/mL) were diluted to 100 μg/mL in different cell culture medium and, hydrodynamic sizes (Z-avg) and poly dispersity index (PDI) were measured directly and after 24 h