Figure 5

Cytotoxicity of Nb₂Se₉ on C2C12 cells (a) by MTT assay test with respect to dispersion concentration Nb₂Se₉ in water over three days, (b) by Live/Dead assay on PDMS substrate over nine days. (c) Long-term biocompatibility of Nb₂Se₉ on C2C12 by MTT assay using PDMS substrate over seven days (compared with pure PDMS as control device).