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Characterization of HPMGO. (A) FTIR spectra of GO and PMGO. (B) XPS patterns of GO and PMGO. (C) Magnetic hysteresis loops of Fe3O4, PMGO, and HPMGO. (D) Zeta potential results of MGO, PMGO, HM, and HPMGO. (E) TEM images of GO (scale bar = 500 nm), PMGO (scale bar = 1 μm), and HPMGO. (scale bar = 1 μm). (F) Membrane protein analysis of HeLa cells, HM, and HPMGO. (G) Confocal microscopy images of HPMGO and PMGO labelled with DiI (red). Scale bar = 50 μm.
