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. Author manuscript; available in PMC: 2015 Nov 7.
Published in final edited form as: Chem Soc Rev. 2014 Aug 7;43(21):7267–7278. doi: 10.1039/c4cs00128a

Figure 2.

Figure 2

Relationship of UV-Vis extinction and size of gold nanoparticles. (a) UV-Vis spectra of gold nanoparticles with different diameters. The wavelength of maximum extinction depends on the size of gold nanoparticles. Reprinted with permission from ref. 11. Copyright (1999) American Chemical Society. (b) Linear relationship of the natural logarithm of extinction coefficients (L mole−1 cm−1) vs. logarithm of average gold nanoparticle core diameters (nm). Reprinted from ref. 3, with permission from Elsevier.