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Issue 12, 2016
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Shell-isolated nanoparticle-enhanced Raman spectroscopy study of the adsorption behaviour of DNA bases on Au(111) electrode surfaces

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Abstract

For the first time, we used the electrochemical shell-isolated nanoparticle-enhanced Raman spectroscopy (EC-SHINERS) technique to in situ characterize the adsorption behaviour of four DNA bases (adenine, guanine, thymine, and cytosine) on atomically flat Au(111) electrode surfaces. The spectroscopic results of the various molecules reveal similar features, such as the adsorption-induced reconstruction of the Au(111) surface and the drastic Raman intensity reduction of the ring breathing modes after the lifting reconstruction. As a preliminary study of the photo-induced charge transfer (PICT) mechanism, the in situ spectroscopic results obtained on single crystal surfaces are excellently illustrated with electrochemical data.

Graphical abstract: Shell-isolated nanoparticle-enhanced Raman spectroscopy study of the adsorption behaviour of DNA bases on Au(111) electrode surfaces

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Submitted
25 Jan 2016
Accepted
11 Mar 2016
First published
14 Mar 2016

This article is Open Access

Analyst, 2016,141, 3731-3736
Article type
Paper

Shell-isolated nanoparticle-enhanced Raman spectroscopy study of the adsorption behaviour of DNA bases on Au(111) electrode surfaces

B. Wen, X. Jin, Y. Li, Y. Wang, C. Li, M. Liang, R. Panneerselvam, Q. Xu, D. Wu, Z. Yang, J. Li and Z. Tian, Analyst, 2016, 141, 3731
DOI: 10.1039/C6AN00180G

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