Evidences of adenine–thymine Interactions at gold electrodes interfaces as provided by in-situ infrared spectroscopy

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/39116
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dc.contributorGrupo de Espectroelectroquímica y Modelización (GEM)es
dc.contributor.authorRueda Rueda, Manuela-
dc.contributor.authorPrieto Dapena, Francisco-
dc.contributor.authorÁlvarez Malmagro, Julia-
dc.contributor.authorRodes García, Antonio-
dc.contributor.otherUniversidad de Alicante. Departamento de Química Físicaes
dc.contributor.otherUniversidad de Alicante. Instituto Universitario de Electroquímicaes
dc.identifier.citationElectrochemistry Communications. 2013, 35: 53-56. doi:10.1016/j.elecom.2013.07.026es
dc.identifier.issn1388-2481 (Print)-
dc.identifier.issn1873-1902 (Online)-
dc.description.abstractThe co-adsorption of complementary DNA bases adenine and thymine on gold thin-film electrodes from 0.1 M HClO4 solutions in H2O and D2O is studied by surface-enhanced infrared absorption spectroscopy in the attenuated total reflection mode (ATR-SEIRAS). The comparison of the spectra in the range 1750–1550 cm− 1 for co-adsorbed adenine and thymine at controlled potentials to those of the individual adsorbed bases shows the enhancement of the signals associated to the vibration modes of adenine and the inhibition of those of thymine. The results can be explained by invoking the rearrangement of both molecules on the electrode surface in order to facilitate the Watson–Crick (W–C) and/or Hoogsteen (HG) interactions between the bases. The co-adsorption seems to be a cooperative process in which a low surface concentration of each base can induce the rearrangement of the complementary base molecules on the surface.es
dc.description.sponsorshipFinancial support from Ministerio de Educación y Ciencia (Spain) (Projects CTQ2010-19823 and CTQ2009-13142 and a FPU-grant to JA), Junta de Andalucía (Grupo FQM202) and Generalitat Valenciana (ACOMP/2011/200) are greatly acknowledged.es
dc.subjectGold electrodeses
dc.subject.otherQuímica Físicaes
dc.titleEvidences of adenine–thymine Interactions at gold electrodes interfaces as provided by in-situ infrared spectroscopyes
Appears in Collections:INV - GEM - Artículos de Revistas

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