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. Author manuscript; available in PMC: 2011 May 1.
Published in final edited form as: Expert Opin Drug Deliv. 2010 May;7(5):577–587. doi: 10.1517/17425240903571614

Figure 1.

Figure 1

(A) Photograph and (B) UV-Vis spectra of gold nanocages tuned to a range of specific wavelengths by controlling the amount (volume listed above each trace) of chloroauric acid added into the reaction system. Modified with permission from [26], Copyright 2007 Nature Publishing Group. (C) Transmission electron microscopy (TEM) image of silver nanocubes, the starting template for the synthesis of gold nanocages. Modified with permission from [17], Copyright 2006 Royal Society of Chemistry. (D) Scanning electron microscopy (SEM) image of the gold nanocages, with TEM inset. Modified with permission from [44], Copyright 2005 Wiley-VCH.