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. Author manuscript; available in PMC: 2009 Oct 13.
Published in final edited form as: J Mater Chem. 2009 Jan 1;19:6317–6320. doi: 10.1039/b901817d

Fig. 3.

Fig. 3

(A) UV-Vis spectra of 1 nM Au–Ag nanocages (solid line), after reacting with 1 mM mPEG-SH aqueous solution (dashed line), and after reacting with 0.1 mM mPEG-SH and then 1 mM HS(CH2)2OH (dotted line). (B) TEM micrographs after reacting with 0.1 mM mPEG-SH and then 1 mM HS (CH2)2OH. (C) Absorption spectra in the UV for 1 nM Au–Ag nanocages (solid line) after reacting with 1 mM mPEG-SH aqueous solution (dashed line), and after reacting with 0.1 mM mPEG-SH and then 1 mM HS (CH2)2OH (dotted line). All the reaction times were 24 h.