Figure 1.

FESEM images of a Ti surface patterned with protruding dots before the anodizing process. (a) × 2,000 magnification, (b) × 5,000 magnification, (c) × 10,000 magnification, and (d) × 20,000 magnification.

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