A New High-Performance Gadonanotube-Polymer Hybrid Material for Stem Cell Labeling and Tracking by MRI

Figure 6

Representative TEM images of MSCs labeled with PAA-GNTs. Red circles indicate the intracellular PAA-GNTs localized in the cytoplasm of the cells, red arrowheads show scattered PAA-GNTs, and the yellow arrow shows PAA-GNTs in the extracellular space. Scale bars = 2 µm.