Results 251 to 260 of about 162,670 (276)

Electrochemical impedance spectroscopy of polyalkylterthiophenes

Electrochimica Acta, 1999
The 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, DINI, DANILO, E. SALATELLI, F. ANDREANI, DECKER, Franco   +4 more
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Plasmonic Imaging of Electrochemical Impedance

Annual Review of Analytical Chemistry, 2017
Electrochemical impedance spectroscopy (EIS) measures the frequency spectrum of an electrochemical interface to resist an alternating current. This method allows label-free and noninvasive studies on interfacial adsorption and molecular interactions and has applications in biosensing and drug screening. Although powerful, traditional EIS lacks spatial
Liang, Yuan, Nongjian, Tao, Wei, Wang
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Electrochemical impedance spectroscopy of polypyrrole based electrochemical immunosensor

Bioelectrochemistry, 2010
Polypyrrole (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, A, Finkelsteinas, H, Cesiulis, A, Ramanaviciene   +3 more
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Electrochemical impedance of microelectrodes

Russian Journal of Electrochemistry, 2000
The influence of the radius (10 100 μm, which agrees with the impedance theory for ...
Z. A. Rotenberg, A. V. Dribinskii, V. P. Lukovtsev, N. S. Khozyainova   +3 more
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Impedance based electrochemical biosensors

2009 IEEE Sensors, 2009
An impedance based electrochemical biosensor was designed and fabricated for the detection of various chemical and biological species, with glass as substrate material and gold electrodes. A flow cell with inlet and outlet ports for the micro fluidic chamber was designed and fabricated using an acrylic material with a reservoir volume of 78 µl.
Binu Baby Narakathu, Bruce E. Bejcek, Massood Z. Atashbar   +2 more
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Dynamic Electrochemical Impedance Spectroscopy

ECS Transactions, 2009
The hardware and software for a dynamic electrochemical impedance spectroscopy system are described. The applied waveform is a continuous computer-generated multisine waveform added to a potential sweep. A fast potentiostat applies the potential signal and the impedance is derived from the Fourier transforms of the measured current and potential ...
David Harrington, Robert L. Sacci
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Electrochemical Impedance Spectroscopy

2012
Electrochemical 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, MASI, ELISA, MANCUSO, STEFANO   +2 more
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Electrochemical Impedance Spectroscopy of protective coatings

Materials and Corrosion, 1985
AbstractElectrochemical 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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Electrochemical impedance spectroscopy of polynucleotide adsorption

Bioelectrochemistry, 2002
The 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, J, Dvorák, S, Hason, V, Vetterl   +3 more
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Electrochemical Impedance Spectroscopy

2023
Jianbo Zhang, Shangshang Wang, Kei Ono
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