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. 2016 Mar 16;10(6):5740–5750. doi: 10.1021/acsnano.5b07533

Figure 1.

Figure 1

Protein-assisted self-assembly of metal/metal core/satellite nanoclusters. (A) Schematic illustration: citrate-stabilized satellite NPs are first coated with a protein giving protein-coated satellite NPs (1), which are assembled onto larger citrate-stabilized core NPs (2) yielding plasmonic core/satellite nanoclusters (3). Electron micrographs of (B) 16 nm bovine serum albumin (BSA)-coated AuNPs satellites, (C) 84 nm citrate-stabilized AuNPs cores, (D) the resulting Au84/Au16 nanoclusters, and their respective (E) UV/vis spectra. The cuvettes (insets B–D) show the purified dispersions of the building blocks and the nanoclusters.