Magnetic super-hydrophilic carbon nanotubes/graphene oxide composite as nanocarriers of mesenchymal stem cells: Insights into the time and dose dependences

: MSC that incorporate GCN composites are attracted by a magnet in vitro. Panel (A) shows the setup of the plate on top of the magnet. Panel (B) shows three different regions of the culture dish containing cells. Different cell densities can be visualized. Panels (C-E) show regions with different cell densities: (C) low density, (D) high density and (E) low density.146