Fig. 2From: In vitro evaluation of osteoblast responses to carbon nanotube-coated titanium surfacesSurface profilometry of titanium discs (n=5/group). R a (mean ± SD) of the uncoated Ti discs was 0.16 ± 0.004 μm. R a (mean ± SE) for MWCNT- and MWCNT-COOH-coated groups was 0.83 ± 0.02 and 0.84 ± 0.01 μm, respectively. *Both MWCNT- and MWCNT-COOH-coated Ti discs were significantly different (p < 0. 0001) from uncoated Ti discsBack to article page