Figure 2
From: Revealing the static and dynamic nanomechanical properties of diatom frustules—Nature's glass lace
Microscopic images of diatom frustule. SEM images of: (a) the cleaned diatom frustule consisting of a hypotheca and an epitheca joined together by girdle bands, (b) the frustule FIB cross-section showing areola walls (c, d) outer surface of the valve, (e) details of the external side of the valve: cribrum, (f) cribellum, (g) inner surface of the valve, (h) details of the internal side of the valve: rimoportulae, (i) foramen. AFM topography of: (j) an outer surface of the cleaned frustule decorated with porous domes (cribrum), (k) foramen holes on the inner surface of a cleaned frustule, (l) a surface of a wet diatom cell forming a hilly terrain, (m) close view of regularly spaced pores on the outer surface (cribellum) of a wet diatom cell.
