Fig. 3From: Enhancement of sciatic nerve regeneration with dual delivery of vascular endothelial growth factor and nerve growth factor genesFlow cytometry analysis of PDAPEI/pDNA polyplexes at various ratios. Images a–i demonstrate transfection efficiency of blank group (PBS), positive group (PEI 25 kDa), PDAPEI/pDNA group at 10, 20, 30, 40, 50 and 60 w/w ratios, respectively. Images j–l demonstrate status of cellsBack to article page