Voltammetric and adsorption study of 4-nitrophenyl-triazole-labeled 2'-deoxycytidine and 7-deazaadenosine nucleosides at boron-doped diamond electrode

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10378037" target="_blank" >RIV/00216208:11310/18:10378037 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081707:_____/18:00500229 RIV/61388963:_____/18:00500229 RIV/00216224:14740/18:00101395

Výsledek na webu

<a href="https://doi.org/10.1016/j.jelechem.2018.01.003" target="_blank" >https://doi.org/10.1016/j.jelechem.2018.01.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jelechem.2018.01.003" target="_blank" >10.1016/j.jelechem.2018.01.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Voltammetric and adsorption study of 4-nitrophenyl-triazole-labeled 2'-deoxycytidine and 7-deazaadenosine nucleosides at boron-doped diamond electrode

Popis výsledku v původním jazyce

Electrochemical properties of 4-nitrophenyl triazole labeled 2&apos;-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 ca -0.6 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).

Název v anglickém jazyce

Voltammetric and adsorption study of 4-nitrophenyl-triazole-labeled 2'-deoxycytidine and 7-deazaadenosine nucleosides at boron-doped diamond electrode

Popis výsledku anglicky

Electrochemical properties of 4-nitrophenyl triazole labeled 2&apos;-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 ca -0.6 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).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/GBP206%2F12%2FG151" target="_blank" >GBP206/12/G151: Centrum nových přístupů k bioanalýze a molekulární diagnostice</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Electroanalytical Chemistry

ISSN

1572-6657

e-ISSN

—

Svazek periodika

821

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

111-120

Kód UT WoS článku

000437818600018

EID výsledku v databázi Scopus

2-s2.0-85042624643