Further Investigations into the Oxidation Chemistry of Adenosine - Effect of Applied Potential on the ProductsFormation

Goyal, Rajendra N.; Dhawan, Aikta

doi:10.1016/s1452-3981(23)17158-6

International Journal of Electrochemical Science

2006

DOI: 10.1016/s1452-3981(23)17158-6

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Further Investigations into the Oxidation Chemistry of Adenosine - Effect of Applied Potential on the ProductsFormation

Rajendra N. Goyal

Aikta Dhawan

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Cited by 6 publications

References 25 publications

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Microelectrode Sensing of Adenosine/Adenosine‐5′‐triphosphate with Fast‐Scan Cyclic Voltammetry

Venton

2010

Electroanalysis

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Adenosine and adenosine-5'-triphosphate (ATP) are important extracellular signaling molecules. Here, we studied adenosine and ATP using fast-scan cyclic voltammetry at carbon-fiber microelectrodes. Although ATP and adenosine have similar oxidation potentials, ATP oxidation current was highly dependent on buffer pH and divalent cation concentrations but adenosine current was not. Therefore, they can be distinguished by adding a divalent cation chelator or calibrating electrodes at different pH values. The enzymatic degradation of adenosine by adenosine deaminase was monitored in a mixture of adenosine and ATP in presence of EDTA (ethylenediaminetetraacetate). This sensing method is promising for enzyme kinetics or in vitro studies.

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Microelectrode Sensing of Adenosine/Adenosine‐5′‐triphosphate with Fast‐Scan Cyclic Voltammetry

Venton

2010

Electroanalysis

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Voltammetric Determination of Purine Bases Using a Carbon Electrode Modified With Hybrid Silica Film

et al. 2013

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Hybrid silica films containing cation‐exchange polyelectrolytes were designed and used to modify a glassy carbon electrode (GCE) for voltammetric determination of purine bases. Hybrid silica‐polyelectrolyte films synthesised in the presence of adenine as structure directed component have demonstrated enhanced sorption capacity to purine base. The anodic peaks of adenine and guanine at a hybrid film‐modified GCE were observed at +1.55 and +1.1 V, respectively, in phosphate buffer solution at pH 3.5. Oxidation currents of adenine and guanine were proportional to their concentration in the range of 0.02–0.50 mM, with a detection limit of 0.015 mM. The developed method was used to determine adenine in adenosine triphosphate and purine bases in hydrolyzed solutions of DNA and demonstrated good metrological characteristics.

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Electrochemical Characterization and Detection of Ascorbic Acid in Garlic Using Activated Glassy Carbon Electrode: a Comprehensive Study

Yenealem,

Eyayu,

Tibebe

et al. 2024

Food Anal. Methods

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Further Investigations into the Oxidation Chemistry of Adenosine - Effect of Applied Potential on the ProductsFormation

Cited by 6 publications

References 25 publications

Microelectrode Sensing of Adenosine/Adenosine‐5′‐triphosphate with Fast‐Scan Cyclic Voltammetry

Microelectrode Sensing of Adenosine/Adenosine‐5′‐triphosphate with Fast‐Scan Cyclic Voltammetry

Voltammetric Determination of Purine Bases Using a Carbon Electrode Modified With Hybrid Silica Film

Electrochemical Characterization and Detection of Ascorbic Acid in Garlic Using Activated Glassy Carbon Electrode: a Comprehensive Study

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