Fig. 7. Neuritogenesis is more pronounced on artificial laminin matrices assembled over lipid films containing negative charges. Artificial laminin matrices were assembled on coverslips coated with increasing ratios of GM1 (A), GT1b (B) or the pool, Gmix (C) relative to the neutral phospholipid, phosphatidylcholine. Neurons were seeded on each matrix and the induced neuritogenesis was evaluated. Quantification was performed for 100 neurons randomly chosen. Results are expressed using the percentyl plot. ^*P<0.001.