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Transfection efficiency of SK-Hep1 cells different nanoformulations determined by flow cytometry analysis. (A) Representative pictures, where cells were treated with (I) blank, (II) PCL-PDEM, (III) free siRNA, (IV) PCL-PDEM-siRNA/QDs, and (V) Lipo-siRNA. (B) Percentage of cells transfected after 4-h treatment, evaluated from experiments shown in (A). Values are mean ± SD, n = 3.
