Table 2

Results of the Epiderm™ skin model study

Test Materials
Exposure time (mins.)
Mean OD540
% Viability
ET50 mins.
MIP

NEGATIVE CONTROL
960
1.685
100



1440




NANO-CeO2
960
2.010
119.29
1517.18
<0.01

1200
1.138
67.54



1440
1.089
64.63


NON-NANO CeO2
960
1.994
92.87
> 1440
0.03

1200
1.975
97.36



1440
1.729
85.23


POSITIVE CONTROL 1% TX100
240
1.035
61.42
260.10
<0.18

360
0.212
12.58



480
0.095
5.64


REFERENCE MATERIAL 20% SLS
15
0.983
58.34
20.68
1.00

30
0.710
42.14



60
0.273
16.20



120
0.100
5.93



Park et al. Particle and Fibre Toxicology 2007 4:12   doi:10.1186/1743-8977-4-12