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. 2012 Jan 17;109(7):2240-2245. doi: 10.1073/pnas.1119301109

Fig. 1.

Fig. 1.

Columnar superlattices of anisotropic gold nanoprisms. (A) Nanoprisms form 1D lamellar crystals in solution with an average of 10–15 prisms per crystal. (B) A zoomed in edge-on view of two nanoprisms within a lamellar superlattice where d is the d spacing, dw is the water region, tprism is the thickness of the nanoprism, tbCTAB is the thickness of the CTAB bilayer, and dCTAB is the diameter of the CTAB micelles. (C) Cryoscanning transmission electron microscopy image of the lamellar crystals. The outlined region highlights an edge-on view of the nanoprism crystals. (Scale bar: 200 nm.) (D) One-dimensional SAXS profile of the as-synthesized Au nanoprisms (145-nm edge length) in solution. The sharp diffraction peaks at q = 0.021, 0.042, 0.063, and 0.084 1/Å indicate a periodic lamellar structure.