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A Study of the Modification of the Gold Electrode Surface with a Calix[4]arene Self-Assembled Monolayer

SYSNO ASEP	0346607
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	A Study of the Modification of the Gold Electrode Surface with a Calix[4]arene Self-Assembled Monolayer
Author(s)	Šustrová, Barbora (UFCH-W) Štulík, Karel (UFCH-W) Mareček, Vladimír (UFCH-W)_RID Janda, Pavel (UFCH-W)_{RID, ORCID}
Source Title	Electroanalysis. - : Wiley - ISSN 1040-0397 Roč. 22, 17-18 (2010), s. 2051-2057
Number of pages	7 s.
Action	International Conference on Modern Electroanalytical Methods
Event date	09.12.2009-14.12.2009
VEvent location	Prague
Country	CZ - Czech Republic
Event type	WRD
Language	eng - English
Country	DE - Germany
Keywords	Calix[4]arene ; Self-assembled monolayer (SAM) ; ionophores
Subject RIV	CG - Electrochemistry
R&D Projects	IAA400400806 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000281904400018
DOI	10.1002/elan.201000065
Annotation	Substituted calix[4]arene molecules were used to modify the gold disk electrode surface and the electrochemical properties of this electrode were compared with those of the bare electrode. Cyclic voltammetry measurements permitted the calculation of a Langmuir-type adsorption isotherm for the formation of the calixarene SAM. The calixarene adsorption from chloroform solution appeared to be more effective, compared to the adsorption from DMF solution, but the process was less reproducible. Preliminary results, obtained by the atomic force microscopy measurements, indicate that the calixarene molecules form a stable monolayer on the Au(111) surface and the SAM structure depends on the solvent used. Impedance measurements demonstrate that the capacity of the modified electrode varies in the presence of ions, depending on their size and shape; this can potentially be utilized in designing ion-selective sensors.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2011

Number of the records: 1