Changes in fetal (A and B) and placental (C and D) weight 24 hours post-exposure to intratracheal instillation (IT) of 100 μg/kg of (S)-MWCNTs or 10% surfactant (A and C) or intravenous administration (IV) of (D)-MWCNTs or DPPC/RSA ( B and D) in 17 - 19 days pregnant Sprague Dawley rats. Three pups/placentae were weighed from each dam included in the study and the number of pups/placentae are indicated within each bar. * indicates p < 0.05 when compared using one way ANOVA and Turkey post-hoc test. GD = day of gestation.
