Figure 5.

Intracellular colocalization of RR-PAMAM (red) and FITC-BC-PAMAM (green) in BJ and SCC-15 cells after 24 hours incubation with dendrimers at various concentrations (1–50 µM).

Notes: Colocalization is shown as a yellow signal. Cell imaging was performed on a Carl Zeiss Axio Observer Z1 LSM 710 inverted confocal microscope equipped with a 63× oil immersion objective.

Abbreviations: RR-PAMAM, Rhodamine Red™-X-labeled PAMAM G3; FITC-BC-PAMAM, fluorescein isothiocyanate-labeled biotin–polyamidoamine bioconjugate.