Fig. 3From: Permeability across a novel microfluidic blood-tumor barrier modelThe diffusion rates of free MW tracers <1000 Da, 3–5 kDa and >60 kDa in an unrestricted, cell free microfluidic chips are shown. Statistical significance was determined using one-way ANOVA followed by Tukey’s multiple comparison tests, and student’s t test; n = 3–6 chips. All data represent mean ± SEMBack to article page