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Intracellular uptake of FAM conjugated siRNA both in native and in NPs in MDA-MB-231 cells. (A) 4 hours uptake of FAM-siRNA (native and NPs) into MDA-MB-231 cells by confocal microscope. (B) Quantitative estimation of FAM-siRNA (native and NPs) in MDA-MB-231 cells by flow cytometry. Data represented as mean ± SEM. (n = 3). **P < 0.01 for FAM-siRNA-NPs versus control.
