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Title | A Planar Interdigital Sensor for Bio-impedance Measurement: Theoretical analysis, Optimization and Simulation |
Authors |
Ngo, Thanh-Tuan
Shirzadfar, Hamidreza Kourtiche, Djilali Nadi, Mustapha |
ORCID | |
Keywords |
Interdigitatal sensor Optimization Impedance spectroscopy Double layer Biological medium |
Type | Article |
Date of Issue | 2014 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/34434 |
Publisher | Sumy State University |
License | |
Citation | Thanh-Tuan Ngo, Hamidreza Shirzadfar, Djilali Kourtiche, Mustapha Nadi, J. Nano- Electron. Phys. 6 No 1, 01011 (2014) |
Abstract |
This paper proposes the design of a biosensor to characterize the dielectric and conductive properties of
biological materials (for example blood or water) by impedance spectroscopy. Particularly, its design optimized
the geometric structure interdigitated electrodes. This optimization allows extending the frequency
range of measurement by reducing the polarization effect. Polarization effect is manifested by an interface
capability (or double layer) from interaction between ions and molecules in the boundary between the surface
of the electrolyte and the electrodes, it increases the measurement error at low frequencies. This paper
recommends also a novel method to determine the parameters (relative permittivity, thickness and capacitance
per unit area) of the double layer (DL) at the contact surface of the electrode with the solution.
CoventorWare software was utilized to modelize of interdigital sensor structure in three dimensions (3D)
to verify the analytical results and evaluate the influence of geometrical parameters and the dielectric
properties of the medium on bioelectrical impedance.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34434 |
Appears in Collections: |
Журнал нано- та електронної фізики (Journal of nano- and electronic physics) |
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File | Size | Format | Downloads |
---|---|---|---|
Ngo_Shirzadfar_Kourtiche_Nadi.pdf | 1.15 MB | Adobe PDF | -1329899212 |
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