Very low-frequency electrical spectroscopy analysis of an ovine renal tissue

Abstract This study investigates three main regions of a sheep's kidney: the cortex, outer medulla, and inner medulla. The research introduces an impedance measurement setup designed to assess the electrical characteristics at ultra-low frequencies (below 0.1 Hz), capturing both the real and im...

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Main Authors: Faezeh Azimi Pirsoltan, Mohammad Reza Karafi
Format: Article
Language:English
Published: Springer 2025-05-01
Series:Discover Applied Sciences
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Online Access:https://doi.org/10.1007/s42452-025-07006-0
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author Faezeh Azimi Pirsoltan
Mohammad Reza Karafi
author_facet Faezeh Azimi Pirsoltan
Mohammad Reza Karafi
author_sort Faezeh Azimi Pirsoltan
collection DOAJ
description Abstract This study investigates three main regions of a sheep's kidney: the cortex, outer medulla, and inner medulla. The research introduces an impedance measurement setup designed to assess the electrical characteristics at ultra-low frequencies (below 0.1 Hz), capturing both the real and imaginary components of electrical permittivity and conductivity. The apparatus can evaluate the electrical attributes of samples from the kidney's three specified regions, each measuring 20 mm × 10 mm × 1.5 mm. Parameters such as admittance, electrical permittivity, electrical conductivity, and power factor are determined through mathematical formulas. The primary objective of this study is to address the gaps in low-frequency dielectric property data of kidney tissue, specifically focusing on the energy absorption characteristics of different regions of sheep’s kidney. Findings suggest that these parameters display a pronounced peak at ultra-low frequencies (below 30 mHz). This peak, consistent across various tests, is evident in the graphs representing the imaginary part of the conductivity and the phase of admittance. It signifies a frequency at which the tissue stores a higher amount of electrical energy throughout the tested frequency spectrum. Such characteristic could be pivotal for tissue characterization, diagnostic processes, and therapeutic strategies.
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spelling doaj-art-cec9712a506e4db2a0ed34360f6f697a2025-08-20T03:48:18ZengSpringerDiscover Applied Sciences3004-92612025-05-017611710.1007/s42452-025-07006-0Very low-frequency electrical spectroscopy analysis of an ovine renal tissueFaezeh Azimi Pirsoltan0Mohammad Reza Karafi1Faculty of Mechanical Engineering, Tarbiat Modares UniversityFaculty of Mechanical Engineering, Tarbiat Modares UniversityAbstract This study investigates three main regions of a sheep's kidney: the cortex, outer medulla, and inner medulla. The research introduces an impedance measurement setup designed to assess the electrical characteristics at ultra-low frequencies (below 0.1 Hz), capturing both the real and imaginary components of electrical permittivity and conductivity. The apparatus can evaluate the electrical attributes of samples from the kidney's three specified regions, each measuring 20 mm × 10 mm × 1.5 mm. Parameters such as admittance, electrical permittivity, electrical conductivity, and power factor are determined through mathematical formulas. The primary objective of this study is to address the gaps in low-frequency dielectric property data of kidney tissue, specifically focusing on the energy absorption characteristics of different regions of sheep’s kidney. Findings suggest that these parameters display a pronounced peak at ultra-low frequencies (below 30 mHz). This peak, consistent across various tests, is evident in the graphs representing the imaginary part of the conductivity and the phase of admittance. It signifies a frequency at which the tissue stores a higher amount of electrical energy throughout the tested frequency spectrum. Such characteristic could be pivotal for tissue characterization, diagnostic processes, and therapeutic strategies.https://doi.org/10.1007/s42452-025-07006-0Low frequencyElectrical propertiesSpectroscopyRenal
spellingShingle Faezeh Azimi Pirsoltan
Mohammad Reza Karafi
Very low-frequency electrical spectroscopy analysis of an ovine renal tissue
Discover Applied Sciences
Low frequency
Electrical properties
Spectroscopy
Renal
title Very low-frequency electrical spectroscopy analysis of an ovine renal tissue
title_full Very low-frequency electrical spectroscopy analysis of an ovine renal tissue
title_fullStr Very low-frequency electrical spectroscopy analysis of an ovine renal tissue
title_full_unstemmed Very low-frequency electrical spectroscopy analysis of an ovine renal tissue
title_short Very low-frequency electrical spectroscopy analysis of an ovine renal tissue
title_sort very low frequency electrical spectroscopy analysis of an ovine renal tissue
topic Low frequency
Electrical properties
Spectroscopy
Renal
url https://doi.org/10.1007/s42452-025-07006-0
work_keys_str_mv AT faezehazimipirsoltan verylowfrequencyelectricalspectroscopyanalysisofanovinerenaltissue
AT mohammadrezakarafi verylowfrequencyelectricalspectroscopyanalysisofanovinerenaltissue