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. Author manuscript; available in PMC: 2009 Jul 27.
Published in final edited form as: J Am Chem Soc. 2009 Feb 18;131(6):2208–2213. doi: 10.1021/ja807526v

Figure 4.

Figure 4

SERS spectra collected on-chip for (a) positive sample containing FMdT-labeled LDR-SERS products by the mutant template (denoted as FMdT-labeled MT), (b) negative sample reacted by WT, (c) control sample containing silver particles and DNA, and (d) background control sample containing silver particles and linker. The concentration of each SNP is 100 pM.