Structure and stability of cytidine adlayers na Au(111) , carbon electrodes with thin film of mercury (MFE) a Hg electrode.

• Authors: HASOŇ Stanislav; VETTERL Vladimír
• Year of publication: 2000
• Type: Article in Proceedings
• Conference: DNA Structure and Interaction - Gregor Mendel Symposium, Book of Abstracts
• MU Faculty or unit: Faculty of Science
• Field: Biophysics
• Keywords: cytidine adsorption; electrode double layer; two-dimensional condensation
• Description: The formation, structure and stability of nucleic acid bases and nucleosides adlayers on the mercury electrode, carbon electrodes with mercury thin film (MFE) and on the Au(111) electrode was studied by capacitance-potential, current-potential and transient (C-t and j-t) measurements. The effect of pH, temperature, and ionic strength on the adsorption was investigated. Depending on the potential applied to the electrodes, cytidine forms highly ordered two dimensional (2-D) adlayers in the broad range of pH. These ordered states are displayed like capacitance pits on the C-E curve and sharp peaks on the cyclic voltammogram.

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