NDLI: Differential cyclic voltammetry - a novel technique for selective and simultaneous detection using redox cyling based sensors

Content Provider	IEEE Xplore Digital Library
Author	Odijk, M. Wiedemair, J. van Megen, M.J.J. Olthuis, W. van den Berg, A.
Copyright Year	2010
Description	Author affiliation: BIOS the Lab-on-a-Chip group, Mesa+ institute, University of Twente, Enschede, The Netherlands (Odijk, M.; Wiedemair, J.; van Megen, M.J.J.; Olthuis, W.; van den Berg, A.)
Abstract	Redox cycling (RC) is an effect that is used to amplify electrochemical signals. However, traditional techniques such as cyclic voltammetry (CV) do not provide clear insight for a mixture of multiple redox couples while RC is applied. Thus, we have developed a new measurement technique which delivers electrochemical spectra of all reversible redox couples present based on concentrations and standard potentials. This technique has been named differential cyclic voltammetry (DCV). We have fabricated micrometer-sized interdigitated electrode (IDE) sensors to conduct DCV measurements in mixtures of 1mM catechol and 4mM [Ru(NH. To simulate the electrochemical behavior of these sensors we have also developed a finite element model (FEM) in $Comsol^{®}.$ The experimental data corresponds to the calculated spectra obtained from simulations. Additionally, the measured spectra can be used to easily derive standard potentials and concentrations simultaneously and selectively.
Starting Page	918
Ending Page	922
File Size	863270
Page Count	5
File Format	PDF
ISBN	9781424481705
ISSN	19300395
e-ISBN	9781424481699
e-ISBN	9781424481682
DOI	10.1109/ICSENS.2010.5690887
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Electric potential Sensors Arrays Mathematical model Equations Fingers
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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