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Table 2 Results of the Epiderm™ skin model study

From: Initial in vitro screening approach to investigate the potential health and environmental hazards of Envirox™ – a nanoparticulate cerium oxide diesel fuel additive

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