Fig. 2From: Effectiveness of porous silicon nanoparticle treatment at inhibiting the migration of a heterogeneous glioma cell populationIdentifying control cell migration. a Cell migration assay apparatus (not to scale). b Quantification of WK1 cell migration at 24, 48 and 72 h expressed as the cell migration index (data presented as mean ± 1 standard deviation, n = 3)Back to article page