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Confocal microscopy of different cell internalization of FITC/GO-PEG and FITC/GO-PEG-(P-l-Arg) in MCF7 cell line during 90 min (A). Cellular localization of FITC/GO-PEG-(P-l-Arg)/scramble-cy5 was visualized by confocal microscope in different cell lines (B). Green: FITC, red: CY5-scramble; and blue: DAPI.
Abbreviations: GO, graphene oxide; PEG, polyethylene glycol; P-l-Arg, poly-l-arginine; FITC, fluorescein isothiocyanate.
