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Fluorescence microscopy images of HeLa cells transfected with Cy5- labeled RNA (9 μg/mL) by MFCs 1a–1e at the concentration of 20 μM, 20 kD PEI and lipofectamine 2000 as positive control. (A1–E1) red channels, (A2–E2) green channels, (A3–E3) bright field images. The scale bar in the figure is 100 μm.
