P/N ratio DEAE-dextran (grafting rate: 0%) 0.026 DEAE-dextran-MMA graft copolymer (grafting rate: 130%) DDMC 28.6 mg/mL 0.021 DDMC 20.0 mg/mL 0.030 DDMC 10.0 mg/mL 0.060

Table 1: Charge ratios (P/N) of DEAE-dextran-MMA graft copolymer (DDMC) and DEAE-dextran to DNA.