Figure 5.

FESEM images of a Ti surface patterned with protruding dots and anodized for 5 min. The Ti surface was anodized at 60 V in an ethylene glycol solution containing 0.5 wt% NH4F. (a) × 1,000 magnification, (b) × 4,000 magnification, (c) × 10,000 magnification, and (d) × 40,000 magnification.

Kim et al. Nanoscale Research Letters 2014 9:93   doi:10.1186/1556-276X-9-93
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