Publication details

Electrocatalytic activity of DNA. Electrochemistry in Microscopic and Molecular Dimensions



Year of publication 2002
Type Article in Proceedings
Conference 53-rd Annual Meeting of the International Society of Electrochemistry.Symposium 3: Bioelectrochemistry. Book of Abstracts
Field Biophysics
Keywords DNA; electrocatalytic activity of DNA;
Description It has been shown, that a formation of a self-assembled monolayer of single-stranded thiol-terminated nucleotides (HS-ssDNA) on gold electrodes leads to a multifold increase of electrochemical signals from anionic red/ox marker, dissolved in aqueous solution. The measurements were performed by cyclovoltametry and impedance spectroscopy. Experimental conditions where the DNA-coupled electrocatalysis is observed were evaluated. A binding of double-stranded thiol-terminated DNA to gold electrodes does not provide any eletrocatalytic effect. DNA hybridisation in solution led to increase of electrochemical activity.
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