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Comparing EGFP expression between PDL and lipofectamine determined by flow cytometry. SH-Sy5Y, HeLa, and 3T3 cells were treated three times (48, 96 and 144 h) with two different ratios of plasmid/PDL (ratio 1:2 and ratio 1:4) and with lipofectamine as a positive control (C+). Data are represented by mean +/− SD of three distinct experiments.
