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. 2017 Oct 12;7:13066. doi: 10.1038/s41598-017-13577-9

Figure 2.

Figure 2

Effects of NaCl concentration and the number ratio of the AuNPs to the polymer beads on the AuNP immobilization. (ac) Representative SEM images showing the spatial distribution of the AuNPs immobilized on the polymer beads at (a) 0 M, (b) 0.05 M, and (c) 0.3 M NaCl solution. (d,h) The densities of the AuNPs immobilized (d) at three different NaCl concentrations and (h) with three different number ratios of the AuNPs to the polymer beads (n = 10 per experimental condition). Error bars, SD. (eg) Representative SEM images showing the core-satellite nanostructures assembled with three different number ratios of the AuNPs to the polymer beads: (e) 1667:1, (f) 2500:1, (g) 5000:1.