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Nondirectional nanoassemblies obtained upon incubation of AuNRs@T18-DNA@Ag (overgrown for 30 min, left panel) or of AuNRs@PEG-T18-DNA@Ag (overgrown for 50 min, right panel) with AuNPs@A18-DNA. (A,D) Schematic illustration of the formation of nondirectional nanoassemblies for both cases. (B,E) Representative TEM micrographs of the corresponding nondirectional nanoassemblies. (C,F) UV–Vis–NIR spectra of the respective building blocks and their resulting nondirectional nanoassemblies.
