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Viability of b.End3 cells exposed for 48 hours to different charge ratios (+/−) of Psel-lipo/siRNA lipoplexes (0.5, 1, 2, 4, 6, 8, 10, 20, 30) formed with different siRNA concentrations (10 nM, 20 nM, 40 nM, 100 nM). Data is presented as mean ± S.E.M. of three identical experiments made in three replicates.
