Figure 1
From: Nanodiamonds act as Trojan horse for intracellular delivery of metal ions to trigger cytotoxicity
Interactions of NDs with metal ions trigger cytotoxicity. a: Scheme of adsorption of metal ions on NDs leads to cellular responses. b: The adsorption amounts (blue) and adsorption energies (red) of metal ions on NDs obtained by ICP-MS measurements and theoretical computation, respectively. c: The IC50 values of metal ions and ND-ion mixture and the differences between them. d: Optical images of L929 cells after incubation with NDs, Cu2+ and NDs-Cu2+ mixture for 24 h.