Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 114, Issue 32, Pages 13730-13735Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp103304r
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Funding
- Italian Minister dell'Universita e Ricerca
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Surface-enhanced Raman scattering (SERS) of adenine-containing microRNA chains has been obtained by adsorption on roughened silver substrates. The spectral features of all of these samples appear dominated by the bands of adenine. By comparison with the SERS spectra of adenine and adenosine obtained on the same substrates, along with DFT calculations on the interaction sites of adenine and adenosine with silver, inferences are discussed about the structural arrangement of the microRNA chains with respect to the metal surface. This approach gives suitable guidelines in order to investigate the adsorption of complex biomolecules on metal substrates.
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