Fig. 3From: Block copolymer conjugated Au-coated Fe3O4 nanoparticles as vectors for enhancing colloidal stability and cellular uptake a Cytotoxicity of PEI25k, PEG-b-PAMPImB and PEG-b-PAMPImB-Fe3O4@Au in EC109 cells at various concentrations; b cytotoxicity of PEG-b-PAMPImB-Fe3O4@Au/DNA in HepG2, HeLa and EC109 cells at different weight ratios. Values represent mean (SD [n = 3])Back to article page