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Electrochemical impedance spectroscopy of polyalkylterthiophenes
Electrochimica Acta, 1999The Electrochemical Impedance Spectroscopy investigation of two isomer polyalkylterthiophenes, namely poly-3′4′- and 33″-didodecylterthiophene was carried out at different stages of polymers oxidation. In the potential range 0.4⩽E⩽0.7 V vs Ag/AgNO3 the ionic resistance Rion associated with the insertion in the polymer structure of the doping species PF−
A. TAROLA +4 more
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Electrochemical Impedance Spectroscopy
2005Non-steady-state measuring techniques are known to be extremely suitable for the investigation of the electrode kinetics of more complex electrochemical systems. Perturbation of the electrochemical system leads to a shift of the steady state. The rate at which it proceeds to a new steady state depends on characteristic parameters (reaction rate ...
Utz Retter, Heinz Lohse
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Electrochemical impedance spectroscopy characterization of beverages
Food Chemistry, 2020This paper compares the results of standard chemical analytical processes and electrochemical impedance spectroscopy (EIS) in the characterization of different beverages, namely ground coffee, soluble coffee, coffee substitutes, barley, cow milk, vegetable drinks, tea, plant infusions and plant mixtures. For the two approaches, the similarities between
C, Soares +4 more
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Electrochemical impedance spectroscopy of polynucleotide adsorption
Bioelectrochemistry, 2002The dependence of the impedance of the electrode double layer of mercury electrode on frequency around the potentials of the tensammetric peaks of single-stranded and double-helical polynucleotides and DNA was studied. From the frequency dependence of the impedance of the electrode double layer represented in a complex plane impedance plot, the ...
L, Strasák +3 more
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Electrochemical Impedance Spectroscopy of protective coatings
Materials and Corrosion, 1985AbstractElectrochemical impedance spectroscopy (EIS) carried out over a wide frequency range (105 to 10−2 Hz) allows us to obtain mechanistic information concerning corrosion protection by coatings. Examples are given for polymer coatings on an Al alloy as a function of surface petreatment and for anodized Al alloys.
F. Mansfeld, M.W. Kendig
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The use of electrochemical impedance spectroscopy for biosensing
Analytical and Bioanalytical Chemistry, 2008This review introduces the basic concepts and terms associated with impedance and techniques of measuring impedance. The focus of this review is on the application of this transduction method for sensing purposes. Examples of its use in combination with enzymes, antibodies, DNA and with cells will be described.
F, Lisdat, D, Schäfer
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Electrochemical impedance spectroscopy of polypyrrole based electrochemical immunosensor
Bioelectrochemistry, 2010Polypyrrole (Ppy) has been shown as a matrix for label-free electrochemical immunosensor based on electrochemical impedance spectroscopy (EIS) measurements. The immunosensing system model presented here was based on bovine leukemia virus (BLV) protein (gp51) entrapped within electrochemically-synthesized polypyrrole (Ppy/gp51).
A, Ramanavicius +3 more
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Glucose characterization based on electrochemical impedance spectroscopy
2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings, 2014In this paper an equivalent circuit model is employed in the characterization of the impedance measurements of saline solutions at physiological glucose concentrations. The impedance data are obtained using a three electrodes cell configuration since it allows measuring the potential accurately in the working electrode independently from the counter ...
Oscar J. Olarte Rodriguez +3 more
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Electrochemical Impedance Spectroscopy
2012Electrochemical impedance spectroscopy (EIS) is a method to study the characteristics of organic and inorganic materials, based on their passive electrical properties, determined by the observation of the tissue electrical response to the passage of external electrical energy.
AZZARELLO, ELISA +2 more
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Electrochemical impedance spectroscopy at an ultramicroelectrode
Journal of Electroanalytical Chemistry, 1994The use of microelectrodes represents one of the most important advances in electrochemistry in the last twenty years: ultramicroelectrodes in particular (the dimensions of which are typically a few micrometers) are now used for a wide range of electrochemical studies [l-6].
P.G. Bruce +3 more
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