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(A) Representative fluorescence images of NIH3T3 cells transfected with the control G4/pGFP without NLS (0.5:0:1) and G4:NLS:pGFP (1:60:1). Blue: DAPI nuclei. Scale bar 20 μm. (B) Transfection efficiency (fold changes relative to the control) of G4:NLS:pGFP complexes prepared at the indicated weight ratios.
