Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 132, Issue 37, Pages 12792-12793Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja105678z
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Funding
- Robert A. Welch Foundation [C-1220]
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The SERS spectrum of DNA is strongly dominated by the strong spectral feature of adenine at 736 cm(-1); the presence of adenine can serve as an endogenous marker for the label-free SERS-based detection of DNA hybridization when the probe DNA sequence is adenine-free. The substitution of 2-aminopurine for adenine on the probe DNA sequence enables the detection of a target sequence using SERS, upon hybridization of the target with the 2-AP-substituted probe DNA sequence.
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