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@inproceedings{1300725,
author = {Pilařová, Iveta and Laskafeld, Ondřej and Lubal, Přemysl and Trnková, Libuše},
address = {France},
booktitle = {17th Topical Meeting of the International Society of Electrochemistry},
edition = {1.},
keywords = {benzylaminopurine; copper ions; PeGE; linear sweep voltammetry; cyclic voltammetry; elimination voltammetric procedure},
howpublished = {elektronická verze "online"},
language = {eng},
location = {France},
note = {Nepřenášet do RIV - není na WoS ani Scopus, neodpovídá definici druhů výsledků dle M17+},
pages = {201-201},
publisher = {International Society of Electrochemistry},
title = {The Oxidation Processes of Benzylaminopurines at Pencil Graphite Electrodes Modified by Monovalent Copper Ions},
year = {2015}
}
TY - JOUR
ID - 1300725
AU - Pilařová, Iveta - Laskafeld, Ondřej - Lubal, Přemysl - Trnková, Libuše
PY - 2015
TI - The Oxidation Processes of Benzylaminopurines at Pencil Graphite Electrodes Modified by Monovalent Copper Ions
PB - International Society of Electrochemistry
CY - France
N1 - Nepřenášet do RIV - není na WoS ani Scopus, neodpovídá definici druhů výsledků dle M17+
KW - benzylaminopurine
KW - copper ions
KW - PeGE
KW - linear sweep voltammetry
KW - cyclic voltammetry
KW - elimination voltammetric procedure
N2 - Benzylaminopurine (6-BAP), the most important cytokinin of adenine type, and its methoxylated and chlorinated derivatives in the form of dinuclear complexes with metal ions are a hot topic in biuomedicine. BAPs are investigated as possible enzyme inhibitors, anti-bacterial, anti-viral and anti-tumor agents. The theoretical investigations of some 6-benzylaminopurine derivatives together with X-ray, FT-IR and Raman spectroscopy characterization were performed by Cajan et al. The aim of our contribution is the systematic voltammetric study of the oxidation processes of methoxylated and chlorinated (in positions 2', 3' and 4' of benzene ring) derivatives of 6-BAP. Voltammetric studies using LSV and CV techniques were performed in buffered H2O/Ch3OH solutions (pH 3.18 - 6.8; 2% v/v CH3OH) utilizing a pencil graphite electrode (PeGE - Tombow, Japan), the surface of which was in-situ modified with monovalent copper. The sensing is based on the formation of Cu(I)-BAP surface compexes which are subsequently stripped out from the electrode by potential scan. The stripping mode enables higher sensitivity in detecting the oxidation signals of all BAP derivatives. Where appropriate,voltammetric data were treated with Elimination voltammetric procedure - EVP to obtain details of the studied electrochemical transformations. The electrochemical experiments were complemented with UV/VIS spectral experiments, electron densities on atoms and precise determinations of the HOMO levels of the studied purine derivatives were obtained by quantum chemistry calculations.
ER -
PILAŘOVÁ, Iveta, Ondřej LASKAFELD, Přemysl LUBAL a Libuše TRNKOVÁ. The Oxidation Processes of Benzylaminopurines at Pencil Graphite Electrodes Modified by Monovalent Copper Ions. Online. In \textit{17th Topical Meeting of the International Society of Electrochemistry}. 1. vyd. France: International Society of Electrochemistry, 2015, s.~201-201.
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