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. Author manuscript; available in PMC: 2009 May 6.
Published in final edited form as: J Phys Chem C Nanomater Interfaces. 2008 Mar 11;112(13):4880–4883. doi: 10.1021/jp710261y

Figure 3.

Figure 3

Time-resolved SERS spectra collected at 1-s intervals (b–g) from the metal–(K105C/S115C protein)–metal nanogap of an aggregate deposited on a glass cover slip (5 × 10−9 M). Six spectra were selected to highlight sudden spectral changes in intensity and position. Excitation line, 514.5 nm; laser power at the sample, 0.05 mW; acquisition time, 1 s. (a) Average SERS spectrum obtained in a buffer solution (from Figure 2b), included for comparison reasons.