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. Author manuscript; available in PMC: 2008 Sep 11.
Published in final edited form as: J Phys Chem C Nanomater Interfaces. 2008;112(21):7872–7876. doi: 10.1021/jp711662f

Figure 5.

Figure 5

Photographs of aqueous dispersion of Ag nanospheres before and after they have been titrated with different volumes of 0.03 mM HAuCl4 solution (from left to right): 0, 0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2.0, 2.5, and 3.0 mL. The major absorption peak was positioned at 408, 425, 433, 474, 493, 557, 672, 689, 712, 756, and 791 nm, respectively.