Figure 2.
(a) Schematic of chemoattractant-induced cell migration assay using a modified Boyden Chamber experiment. Adding CNTs increased the hydrogel porosity and cell migration. (b) Samples prepared in porous cell culture inserts and 24-well plate. To check the effect of FBS, one-half of the samples, denoted as No FBS, had no chemoattractant. (c) The average cell migration index for the samples with (solid pattern) and without (diagonal pattern) chemoattractant. *p < 0.05 corresponds to a significant difference.