Figure 1
From: Novel carbon film induces precocious calcium oscillation to promote neuronal cell maturation
Structure of nC films: (a) schematic showing the sp2 and sp3 domains; (b) scanning electron micrograph picture showing the carbon thin film on top of silicon substrate, scale bar 1 μm; (c) micro Raman spectrum showing characteristic peaks; (d) line scan of 50 µm showing spatial distribution of G and D peaks; (e) AFM surface scan over 4 µm2 area.
