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. Author manuscript; available in PMC: 2014 Apr 4.
Published in final edited form as: J Phys Chem Lett. 2013 Mar 14;4(7):1148–1155. doi: 10.1021/jz4000142

Figure 2.

Figure 2

(Adapted from Ref. 33) Chromatographic purification of silver cluster-DNA conjugates. (A) The reversed-phase chromatogram at 260nm absorbance shows all species containing the C3AC3AC3TC3A ss-DNA scaffold. (B) The absorption spectra corresponding to peaks I and II from (A) show the distinct spectra associated with each resolved cluster.36 (C) A size exclusion chromatogram for a violet-absorbing cluster bound to a DNA strand was acquired at 260 nm (red dotted line) and at 400 nm (solid violet line). Correspondence between the DNA- and cluster-specific chromatograms identifies the conjugate, whose spectrum is provided in (D).33