Figure 4

TEM images of MGC-803 cells treated with Fe3O4@Au-HPG-Glc nanoprobes was observed under low power (a), intermediate magnification in the selected area (b) and high magnification in the selected area (c). Note that the red arrows indicate the nanoprobes in cytoplasm of the MGC-803 cells, and the yellow arrows indicate nanoprobe dispersions as secretions being excluded by the MGC-803 cells.