Fig. 6From: Polyethylenimine-Based Amphiphilic Core–Shell Nanoparticles: Study of Gene Delivery and Intracellular TraffickingConfocal laser scanning microscopic image of HeLa cells after 4 h post-transfection with dual-fluorescent labeled nanoparticle/pDNA complexes. The red signals (pDNA) were all co-localized with the green signals (PMMA–PEI), indicating the presence of pDNA with the nanoparticlesBack to article page