Fig. 6
From: Shaping micro-clusters via inverse jamming and topographic close-packing of microbombs
Hierarchical leveling on the topographic clusters. a SEM image of a single-cell microbomb with nanoscallops on the sidewall. b Nanoimprinting on the surface of the cluster particle to achieve further hierarchy. c, d SEM images of the nanoline mold (600 nm line width, c) and the clusters imprinted with nanolines on top (d). e, f SEM images of the mold of hole patterns (e) and the complementary hierarchical clusters with nano-pillars (600 nm in diameter and 600 nm in height) after the explosion (f)
