Fig. 3From: Basal Ti level in the human placenta and meconium and evidence of a materno-foetal transfer of food-grade TiO2 nanoparticles in an ex vivo placental perfusion modelMean transfer profile of particles during 1 h of placental perfusion with E171 using confocal microscopy. Placenta were perfused with food-grade TiO2 (E171, 15 μg/mL in PM) and counted as laser-diffracting particle spots over 1 h of experiment. Each data is the mean ± SEM of 4 to 6 independent experimentsBack to article page