Počet záznamů: 1
Voltammetric and adsorption study of 4-nitrophenyl-triazole-labeled 2 '-deoxycytidine and 7-deazaadenosine nucleosides at boron-doped diamond electrode
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SYSNO ASEP 0500229 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Voltammetric and adsorption study of 4-nitrophenyl-triazole-labeled 2 '-deoxycytidine and 7-deazaadenosine nucleosides at boron-doped diamond electrode Tvůrce(i) Vosáhlová, J. (CZ)
Koláčná, Lucie (BFU-R)
Daňhel, Aleš (BFU-R) RID, ORCID
Fischer, J. (CZ)
Balintová, Jana (UOCHB-X) RID
Hocek, Michal (UOCHB-X) RID, ORCID
Schwarzová-Pecková, K. (CZ)
Fojta, Miroslav (BFU-R) RID, ORCIDCelkový počet autorů 8 Zdroj.dok. Journal of Electroanalytical Chemistry. - : Elsevier - ISSN 1572-6657
Roč. 821, JUL 15 (2018), s. 111-120Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova solid amalgam electrode ; square-wave voltammetry ; film electrode ; electrochemical detection Vědní obor RIV CG - Elektrochemie Obor OECD Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) Vědní obor RIV – spolupráce Ústav organické chemie a biochemie - Elektrochemie CEP GBP206/12/G151 GA ČR - Grantová agentura ČR Institucionální podpora BFU-R - RVO:68081707 ; UOCHB-X - RVO:61388963 UT WOS 000437818600018 EID SCOPUS 85042624643 DOI 10.1016/j.jelechem.2018.01.003 Anotace Electrochemical properties of 4-nitrophenyl triazole labeled 2'-deoxycytidine (dCTRN 2) and 7-deazaadenosine (dA(TRNO2)) were studied using alumina-polished boron doped diamond (BDD) electrode in acetate buffer pH 5.0. Cyclic voltammetry revealed peak-shaped signals for reduction of the nitro group at the potentials of ca0.6 V (vs. AllAgCl13 mol L-1 KCl reference electrode) and for the hydroxylamine/nitroso pair exhibiting quasireversible electron transfer at potentials comparable with redox processes of other nitro aromatic compounds at BDD electrodes. All electrochemical processes are directed by adsorption. Moreover, ex situ adsorption of dA(TRNO2) and transfer to supporting electrolyte enables its quantitation using square wave voltammetry in small (several microliter) sample volumes after optimization of parameters for the hydroxylamine/nitroso redox couple. Competitive adsorption/desorption at the BDD surface was further studied by cyclic voltammetry with dA(TRNO2) in the presence of electrochemically inactive phenyl triazole 7-deazaadenosine conjugate (dA(TR)), revealing mutual displacement of both compounds at BDD surface. Further, the redox processes of simpler aromatic nitro compounds (4-nitrophenyl acetylene and 2-nitronaphthalene) are strongly affected when the BDD surface is covered by dA(TR). Pracoviště Biofyzikální ústav Kontakt Jana Poláková, polakova@ibp.cz, Tel.: 541 517 244 Rok sběru 2019
Počet záznamů: 1