Ferrocene-Boronic Acid–Fructose Binding Based on Dual- Plate Generator–Collector Voltammetry and Square-Wave Voltammetry

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Authors	LI Meng XU Su-Ying GROSS Andrew J. HAMMOND Jules L. ESTRELA Pedro WEBER James LACINA Karel JAMES Tony D. MARKEN Frank
Year of publication	2015
Type	Article in Periodical
Magazine / Source	ChemElectroChem
MU Faculty or unit	Central European Institute of Technology
Citation
Web	http://onlinelibrary.wiley.com/doi/10.1002/celc.201500016/full
Doi	http://dx.doi.org/10.1002/celc.201500016
Field	Electrochemistry
Keywords	boronic acids; electroanalysis; ferrocene; saccharides; voltammetry
Description	The interaction of ferrocene-boronic acid with fructose is investigated in aqueous 0.1 M phosphate buffer at pH 7, 8 and 9. Two voltammetric methods, based on 1) a dual-plate generator–collector micro-trench electrode (steady state) and 2) a square-wave voltammetry (transient) method, are applied and compared in terms of mechanistic resolution. A combination of experimental data is employed to obtain new insights into the binding rates and the cumulative binding constants for both the reduced ferrocene-boronic acid (pH dependent and weakly binding) and for the oxidised ferrocene-boronic acid (pH independent and strongly binding).
Related projects:	CEITEC - Central European Institute of Technology