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Nucleosides and ODN electrochemical detection onto boron doped diamond electrodes.
Bioelectrochemistry. 2004 Jun; 63(1-2):303-6.B

Abstract

Boron doped diamond (BDD) is a promising material for electroanalytical chemistry due mainly to its chemical stability, its high electrical conductivity and to the large amplitude of its electroactive window in aqueous media. The latter feature allowed us to study the direct oxidation of the two electroactive nucleosides, guanosine and adenosine. The BDD electrode was first activated by applying high oxidizing potentials, allowing to increase anodically its working potential window through the oxidation of CH surface groups into hydroxyl and carbonyl terminations. Guanosine (1.2 V vs. Ag/AgCl) and adenosine (1.5 V vs. Ag/AgCl) could then be detected electrochemically with an acceptable signal to noise ratio. The electrochemical signature of each oxidizable base was assessed using differential pulse voltammetry (DPV), in solutions containing one or both nucleosides. These experiments pointed out the existence of adsorption phenomena of the oxidized products onto the diamond surface. Scanning electrochemical microscopy (SECM) was used to investigate these adsorption effects at the microscopic scale. The usefulness of BDD electrodes for the direct electrochemical detection of synthetic oligonucleotides is also evidenced.

Authors+Show Affiliations

CREAB group, Laboratoire des Structures et Propriétés des Architectures Moléculaires UMR 5819 CNRS-CEA-Université Joseph Fourier Grenoble 1, DRFMC/SI3M/CREAB, CEA 17 avenue des Martyrs 38054 Grenoble cedex 9, France. pmailley@cea.frNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Evaluation Study
Journal Article
Validation Study

Language

eng

PubMed ID

15110292

Citation

Fortin, Elodie, et al. "Nucleosides and ODN Electrochemical Detection Onto Boron Doped Diamond Electrodes." Bioelectrochemistry (Amsterdam, Netherlands), vol. 63, no. 1-2, 2004, pp. 303-6.
Fortin E, Chane-Tune J, Mailley P, et al. Nucleosides and ODN electrochemical detection onto boron doped diamond electrodes. Bioelectrochemistry. 2004;63(1-2):303-6.
Fortin, E., Chane-Tune, J., Mailley, P., Szunerits, S., Marcus, B., Petit, J. P., Mermoux, M., & Vieil, E. (2004). Nucleosides and ODN electrochemical detection onto boron doped diamond electrodes. Bioelectrochemistry (Amsterdam, Netherlands), 63(1-2), 303-6.
Fortin E, et al. Nucleosides and ODN Electrochemical Detection Onto Boron Doped Diamond Electrodes. Bioelectrochemistry. 2004;63(1-2):303-6. PubMed PMID: 15110292.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Nucleosides and ODN electrochemical detection onto boron doped diamond electrodes. AU - Fortin,Elodie, AU - Chane-Tune,Jérôme, AU - Mailley,Pascal, AU - Szunerits,Sabine, AU - Marcus,Bernadette, AU - Petit,Jean-Pierre, AU - Mermoux,Michel, AU - Vieil,Eric, PY - 2003/06/23/received PY - 2003/10/21/revised PY - 2003/10/27/accepted PY - 2004/4/28/pubmed PY - 2004/12/22/medline PY - 2004/4/28/entrez SP - 303 EP - 6 JF - Bioelectrochemistry (Amsterdam, Netherlands) JO - Bioelectrochemistry VL - 63 IS - 1-2 N2 - Boron doped diamond (BDD) is a promising material for electroanalytical chemistry due mainly to its chemical stability, its high electrical conductivity and to the large amplitude of its electroactive window in aqueous media. The latter feature allowed us to study the direct oxidation of the two electroactive nucleosides, guanosine and adenosine. The BDD electrode was first activated by applying high oxidizing potentials, allowing to increase anodically its working potential window through the oxidation of CH surface groups into hydroxyl and carbonyl terminations. Guanosine (1.2 V vs. Ag/AgCl) and adenosine (1.5 V vs. Ag/AgCl) could then be detected electrochemically with an acceptable signal to noise ratio. The electrochemical signature of each oxidizable base was assessed using differential pulse voltammetry (DPV), in solutions containing one or both nucleosides. These experiments pointed out the existence of adsorption phenomena of the oxidized products onto the diamond surface. Scanning electrochemical microscopy (SECM) was used to investigate these adsorption effects at the microscopic scale. The usefulness of BDD electrodes for the direct electrochemical detection of synthetic oligonucleotides is also evidenced. SN - 1567-5394 UR - https://www.unboundmedicine.com/medline/citation/15110292/Nucleosides_and_ODN_electrochemical_detection_onto_boron_doped_diamond_electrodes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1567539404000544 DB - PRIME DP - Unbound Medicine ER -