Fig. 2
From: Large-scale water collection of bioinspired cavity-microfibers

The morphology of cavity-microfibers. The SEM images showing (a) the dehydrated cavity-microfiber; (b) the nanostructures of knot part of cavity-microfiber; (c) the nanostructures of joint part of cavity-microfiber; AFM image showing roughness and nanostructures of (d) the knot part and (e) joint part of the cavity-microfiber; SEM images showing (f, g) the hollow cavity of the knot; (h) the solid cross section of the joint part for cavity-microfiber. Scale bars, 300 μm in (a), 30 μm in (a, i–iii), 2 μm in (b–e) and 50 μm in (f–h)