Fig. 2: 1D and 2D hierarchical NP structuring using different arrangements of the same external chromatic set.
From: Encoding hierarchical 3D architecture through inverse design of programmable bonds
a, 3D assembly of 1D particle strings based on Mesovoxel 1, where origami particles bind at a coordination of 180°. b, Experimental (black) and modelled (red) structure factors, or S(q), as a function of the wavevector transfer q, for 1D particle strings. The associated locations of Bragg peaks are also shown (Supplementary Fig. 28). The inset shows the 2D SAXS pattern, with brighter colour representing stronger scattering intensity. The model corresponds to a tetragonal primitive unit cell with lattice parameters a = b = 83.6 nm, c = 59.1 nm and α = β = γ = 90°. c, 3D assembly of 2D particle planes based on Mesovoxel 2, where particles bind at a coordination of 90° with a valence of four, separated along the Z axis by an empty voxel layer. d, Experimental (black) and modelled (red) S(q) for 2D particle planes. The associated locations of Bragg peaks are also shown (Supplementary Fig. 29). The inset shows the 2D SAXS pattern. The model corresponds to a tetragonal primitive unit cell with lattice parameters a = b = 59.1 nm, c = 118.2 nm and α = β = γ = 90°. e, SEM images (top and middle) of silicated assemblies show domains with sizes of ~10 µm and a TEM image after FIB sectioning (bottom) provides real-space evidence of stacked planar organizations.
