Figure 1.

SEM morphologies of the (a, b) SP and (c, d) MP surfaces. Magnification of (a) and (c) is ×1,000 and of (b) and (d) is ×5,000.

Kim et al. Nanoscale Research Letters 2012 7:78   doi:10.1186/1556-276X-7-78
Download authors' original image