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Immunofluorescence study of dendrimer distribution in the placenta of IA-Saline groups. The presence of dendrimers in the syncytiotrophoblasts and cytotrophoblasts layer (labeled by anti-cytokeratin 13) of chorionic villi demonstrated the transport of dendrimers from maternal side across the blood-placenta barrier to the fetal side. Red: D-OH-Cy5 or D-COOH-Cy5; green: anti-cytokeratin 13 labeled syncytiotrophoblast and cytotrophoblast layer; blue: DAPI. Scale bar: 100 μm.
