Figure 8.
Influence of membrane porosity of culture inserts on the measured transepithelial electrical resistivity (TEER). The TR146 human epithelial cell line was cultured for 2 weeks on polyethylene therephthalate (PET) cell culture inserts from different manufacturers with 2 × 106 or 4 × 106 pores/cm2 in 24-well format. Means ± SEM, n = 3, one-way ANOVA and Bonferroni test; *** p < 0.001.