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Table 3 Results of the cytotoxicity testing

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

TEST MATERIAL MEAN CYTOTOXICITY/REACTIVITY GRADE
Culture medium (Control) 0
Negative control (polypropylene pipette tips) 0
Positive control (tin-impregnated PVC strips) 3
'Non-nano' particulate CeO2 0
Nano-particulate CeO2 0