<abstract xmlns="http://www.w3.org/1999/xhtml">Miniaturized electrodes are introduced in life sciences in a great number and variety. They are often designed for a special purpose without the need of quantitative analysis, such as for detecting cells or water droplets in a fluid channel. Other developments aim in monitoring a single quantity in a process where all other factors held constant.To use miniaturized electrodes for quantitative measurements, their behavior should be known in detail and stable over time in order to allow a mathematical correction of the data measured.Here we show test procedures for evaluating macroscopic but also microscopic electrodes. The most important quality parameters for electrode systems used in life science are the electrode impedance, its stability, the useful frequency range as well as the limits for applied stimulus without driving the electrode system into a non-linear region of the current/voltage relation. Proper electrode design allows a bandwidth from 100 Hz up to some MHz for impedances ranging over decades from 50 Ω up to several MΩ.</abstract>

Miniaturized electrodes are introduced in life sciences in a great number and variety. They are often designed for a special purpose without the need of quantitative analysis, such as for detecting cells or water droplets in a fluid channel. Other developments aim in monitoring a single quantity in a process where all other factors held constant.To use miniaturized electrodes for quantitative measurements, their behavior should be known in detail and stable over time in order to allow a mathematical correction of the data measured.Here we show test procedures for evaluating macroscopic but also microscopic electrodes. The most important quality parameters for electrode systems used in life science are the electrode impedance, its stability, the useful frequency range as well as the limits for applied stimulus without driving the electrode system into a non-linear region of the current/voltage relation. Proper electrode design allows a bandwidth from 100 Hz up to some MHz for impedances ranging over decades from 50 Ω up to several MΩ.

Testing miniaturized electrodes for impedance measurements within the β-dispersion – a practical approach

Journal of Electrical Bioimpedance

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Miniaturized electrodes are introduced in life sciences in a great number and variety. They are often designed for a special purpose without the need of...

Testing miniaturized electrodes for impedance measurements within the β-dispersion – a practical approach

Article Category: Articles

Publié en ligne: 07 avr. 2010

Pages: 41 - 55

Reçu: 26 mars 2010

DOI: https://doi.org/10.5617/jeb.111

Mots clés
Impedance, electrode polarization, voltammetry, miniaturization

© 2010 Uwe Pliquett, Dieter Frense, Markus Schönfeldt, Christian Frätzer, Yong Zhang, Brian Cahill, Michael Metzen, Andreas Barthel, Thomas Nacke, Dieter Beckmann, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Testing miniaturized electrodes for impedance measurements within the β-dispersion – a practical approach

Article Category: Articles

Publié en ligne: 07 avr. 2010

Pages: 41 - 55

Reçu: 26 mars 2010

DOI: https://doi.org/10.5617/jeb.111

Mots clésImpedance, electrode polarization, voltammetry, miniaturization

© 2010 Uwe Pliquett, Dieter Frense, Markus Schönfeldt, Christian Frätzer, Yong Zhang, Brian Cahill, Michael Metzen, Andreas Barthel, Thomas Nacke, Dieter Beckmann, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Impedance, electrode polarization, voltammetry, miniaturization