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Differential phase angle spectrum for liquid detection in functionalized surface roughness polymeric electrode Cover

Differential phase angle spectrum for liquid detection in functionalized surface roughness polymeric electrode

Journal of Electrical Bioimpedance
Volume 15 (2024): Issue 1 (January 2024)
By: John Alexander Gomez-Sanchez and  Luciano de Souza Ribero Bueno  
Open Access
|Dec 2024

Figures & Tables

Figure 1:

Polymeric biosensor dimensions in millimeters. A: Distance between the steps, B: Height of one step, C: Overall depth of the stepped section, D: Internal step of the box.
Polymeric biosensor dimensions in millimeters. A: Distance between the steps, B: Height of one step, C: Overall depth of the stepped section, D: Internal step of the box.

Figure 2:

3D model for simulations in COMSOL 6.0
3D model for simulations in COMSOL 6.0

Figure 3:

Setup of impedance measurements using Zurich Instruments MFLI
Setup of impedance measurements using Zurich Instruments MFLI

Figure 4:

Differential angle phase spectrum for the functionalized electrode surface in the presence of acetic acid and CaCl2. Blue dashed line (WF + Acetic), blue triangle line (WF + CaCl2), orange dashed line (BF + Acetic), circle line (BF + CaCl2), green dashed line (WF + Acetic + Biotin), and green square line (WF + CaCl2 + Biotin + CaCl2).
Differential angle phase spectrum for the functionalized electrode surface in the presence of acetic acid and CaCl2. Blue dashed line (WF + Acetic), blue triangle line (WF + CaCl2), orange dashed line (BF + Acetic), circle line (BF + CaCl2), green dashed line (WF + Acetic + Biotin), and green square line (WF + CaCl2 + Biotin + CaCl2).

Figure 5:

Frequency-dependent impedance and phase response of dry polymeric electrodes: Analysis of dry sensors 1 (green), 2 (blue dashed), 3 (navy blue), and 4 (orange dashed-dot)
Frequency-dependent impedance and phase response of dry polymeric electrodes: Analysis of dry sensors 1 (green), 2 (blue dashed), 3 (navy blue), and 4 (orange dashed-dot)

Figure 6:

COMSOL simulation of surface polarization on the steps in the sample box. Blue line: Top surface, Red line: Bottom surface. Electric potential distribution (a) top step and (b) bottom step ;(c) Polarization dynamics as a function of position
COMSOL simulation of surface polarization on the steps in the sample box. Blue line: Top surface, Red line: Bottom surface. Electric potential distribution (a) top step and (b) bottom step ;(c) Polarization dynamics as a function of position
DOI: https://doi.org/10.2478/joeb-1024-0019 | Journal eISSN: 1891-5469
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Language: English
Page range: 162 - 168
Submitted on: Nov 23, 2024
Published on: Dec 23, 2024
Published by: University of Oslo
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
dielectric modified surface,
biochemical sensor,
portable sensor
Related subjects:
Engineering,
Bioengineering and biomedical engineering,
Biomedical electronics,
Life sciences,
Biophysics,
Medicine,
Biomedical engineering,
Physics,
Spectroscopy and metrology

© 2024 John Alexander Gomez-Sanchez, Luciano de Souza Ribero Bueno, published by University of Oslo
This work is licensed under the Creative Commons Attribution 4.0 License.

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