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. Author manuscript; available in PMC: 2013 Jul 3.
Published in final edited form as: Anal Chem. 2012 Jun 11;84(13):5501–5508. doi: 10.1021/ac202427e

Figure 5.

Figure 5

Dendrogram produced by hierarchical cluster analysis (HCA) of the SERS spectra shown in Fig. 4 calculated using Ward’s method and label-coded as follows: (A) anti-vasopressin aptamer complex and influenza nucleoproteins from A/Uruguay, A/Brisbane, B/Brisbane, (B) anti-vasopressin aptamer (1000 nM) - spacer (100 nM) complex, along with blank buffer control, and (C) anti-vasopressin aptamer complex and vasopressin (1μg/mL). A total of 240 spectra were used to generate this dendrogram, corresponding to 40 spectra in each of the 6 sample categories.