Reducing Sensing Volume Confounding Effects in Conductivity Measurements: The Use of a Miniaturised Four-Electrode Probe

Niko Istuk, Hamza Benchakroun, Adnan Elahi, Martin O'halloran, Rita Matta, David Moreau, Rodney O'connor, Eoghan Dunne

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

1 Citation (Scopus)

Abstract

For conductivity measurements, the sensing volume is determined by the electrode size and geometry and can significantly confound results, particularly in smaller samples. In this study, we investigate the influence of the sensing volume on conductivity measurements. Two distinct four-electrode probes are used to measure the conductance of a 0.1 mol/l NaCl solution across various sample sizes. The miniaturised probe, despite its fragility, demonstrated consistent conductivity measurements across smaller sample sizes. Thus, validating the potential of the miniaturised probe for accurately assessing the conductivity of small, heterogeneous biological tissues. The findings from this study highlight the significance of considering sensing volume in conductivity measurements and showcases the advantages of using a miniaturised four-electrode probe, especially for small sample analysis.

Original languageEnglish
Title of host publicationICECOM 2023 - 24th International Conference on Applied Electromagnetics and Communications
EditorsZvonimir Sipus, Davor Bonefacic, Radovan Zentner
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350313017
DOIs
Publication statusPublished - 2023
Event24th International Conference on Applied Electromagnetics and Communications, ICECOM 2023 - Dubrovnik, Croatia
Duration: 27 Sep 202329 Sep 2023

Publication series

NameICECOM 2023 - 24th International Conference on Applied Electromagnetics and Communications

Conference

Conference24th International Conference on Applied Electromagnetics and Communications, ICECOM 2023
Country/TerritoryCroatia
CityDubrovnik
Period27/09/2329/09/23

Keywords

  • biological tissues
  • conductivity
  • four-electrode probe
  • impedance
  • impedance spectroscopy
  • sensing volume

Fingerprint

Dive into the research topics of 'Reducing Sensing Volume Confounding Effects in Conductivity Measurements: The Use of a Miniaturised Four-Electrode Probe'. Together they form a unique fingerprint.

Cite this