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Transfection of adherent LFCLI1 cells with F2-encapsulated 5′-fluorescein C-5-propyne phosphorothioate oligonucleotide. Observation by confocal microscopy 41 h after transfection.. (A) Non-encapsulated 5′-fluorescein Lucif-2, (B) encapsulated 5′-fluorescein Lucif-2, (C) and (D) double labelling with encapsulated 5′-fluorescein Lucif-2 in F2 containing rhodamine phosphoethanolamine (N-PE-Rh). (C) and (D) show the fluorescein and the rhodamine fluorescence, respectively.
