Fig. 3
From: In vitro evaluation of osteoblast responses to carbon nanotube-coated titanium surfaces
SEM images of MC3T3-E1 cells on titanium discs. i SEM images of MC3T3-E1/pre-osteoblast cells on (a) uncoated Ti, (b) MWCNT-coated Ti, and (c) MWCNT-COOH-coated Ti at ×60 magnification. Pre-osteoblasts have adhered to all three substrates after 48 h of cell culture. ii SEM images of MC3T3-E1 cells on titanium discs at ×250 magnification. Osteoblasts exhibit typical adherent cell morphology in all substrates. iii SEM images of MC3T3-E1 cells on (a) uncoated Ti, (b) MWCNT-coated Ti, and (c) MWCNT-COOH-coated Ti at ×18,000 magnification. Note that the osteoblast adhered on all substrates. In b and c, the MWCNT and MWCNT-COOH coatings can be observed with the osteoblasts well spread out in both the groups