Figure 1. Evidence of highly efficient siRNA transfer. HCEC were electroporated with 1 μg Silencer Cy3-labeled Negative Control #1 siRNA and plated in culture medium as described in the “Methods” section. This representative image was taken 24 h after electroporation. Punctate cytoplasmic staining demonstrates the high efficiency of siRNA transfer to the cells. Original magnification: 20×.