Nanopatterning Gold by Templated Solid State Dewetting on the Silica Warp and Weft of Diatoms

Figure 2

(a) AFM image of the top surface of an exfoliated Nitzschia palea frustule. The white regions (weft costae) run in the transverse direction. (b) Perspective of the image in (a). (c) Height profiles in the warp and weft regions of silica costae. The blue amplitude profile corresponds to the foramina (pores). The red profile corresponds to the peaks and valleys of the weft costae, where the peaks are observed to coincide with the minima of the openings.

(a)

(b)

(c)