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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