Investigation of the mechanical frequency response of ovine renal tissue at low frequencies
Abstract This study explores the mechanical properties of ovine renal tissue, focusing on resonance patterns at low frequencies. Using a universal tensile/compression testing machine, we examined the stress-strain behavior of the tissue under compression, revealing its non-linear viscoelastic charac...
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Nature Portfolio
2025-05-01
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| Online Access: | https://doi.org/10.1038/s41598-025-01302-w |
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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 explores the mechanical properties of ovine renal tissue, focusing on resonance patterns at low frequencies. Using a universal tensile/compression testing machine, we examined the stress-strain behavior of the tissue under compression, revealing its non-linear viscoelastic characteristics. Dynamic Mechanical Analysis (DMA) and a dynamic shear rheometer were employed to measure the storage and loss moduli across various frequencies (0.01–10 Hz). The shear storage modulus ranged from 1 kPa to 48 kPa in the strain level of 0.5%, while the shear loss modulus varied between 2 kPa and 4 kPa. Experimental results showed no resonant behavior in the mechanical properties, including storage modulus, loss modulus, and tan delta, in both tensile and shear modes at frequencies below 10 Hz. A vibration test was conducted using a shaker to investigate the Frequency Response Function (FRF) of the kidney over the studied frequency range. The vibration tests revealed mechanical resonance in the kidney at approximately 3 Hz. A numerical modal analysis, conducted using COMSOL software, identified a natural frequency around 3 Hz, closely aligning with experimental observations. These findings suggest significant implications for understanding renal mechanics and developing medical applications. |
| format | Article |
| id | doaj-art-b8e32636e41b49ffaa7ad4046691bb14 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-b8e32636e41b49ffaa7ad4046691bb142025-08-20T03:53:46ZengNature PortfolioScientific Reports2045-23222025-05-0115111610.1038/s41598-025-01302-wInvestigation of the mechanical frequency response of ovine renal tissue at low frequenciesFaezeh Azimi Pirsoltan0Mohammad Reza Karafi1Faculty of Mechanical Engineering, Tarbiat Modares UniversityFaculty of Mechanical Engineering, Tarbiat Modares UniversityAbstract This study explores the mechanical properties of ovine renal tissue, focusing on resonance patterns at low frequencies. Using a universal tensile/compression testing machine, we examined the stress-strain behavior of the tissue under compression, revealing its non-linear viscoelastic characteristics. Dynamic Mechanical Analysis (DMA) and a dynamic shear rheometer were employed to measure the storage and loss moduli across various frequencies (0.01–10 Hz). The shear storage modulus ranged from 1 kPa to 48 kPa in the strain level of 0.5%, while the shear loss modulus varied between 2 kPa and 4 kPa. Experimental results showed no resonant behavior in the mechanical properties, including storage modulus, loss modulus, and tan delta, in both tensile and shear modes at frequencies below 10 Hz. A vibration test was conducted using a shaker to investigate the Frequency Response Function (FRF) of the kidney over the studied frequency range. The vibration tests revealed mechanical resonance in the kidney at approximately 3 Hz. A numerical modal analysis, conducted using COMSOL software, identified a natural frequency around 3 Hz, closely aligning with experimental observations. These findings suggest significant implications for understanding renal mechanics and developing medical applications.https://doi.org/10.1038/s41598-025-01302-wFrequency responseMechanical propertiesRenal tissueResonance |
| spellingShingle | Faezeh Azimi Pirsoltan Mohammad Reza Karafi Investigation of the mechanical frequency response of ovine renal tissue at low frequencies Scientific Reports Frequency response Mechanical properties Renal tissue Resonance |
| title | Investigation of the mechanical frequency response of ovine renal tissue at low frequencies |
| title_full | Investigation of the mechanical frequency response of ovine renal tissue at low frequencies |
| title_fullStr | Investigation of the mechanical frequency response of ovine renal tissue at low frequencies |
| title_full_unstemmed | Investigation of the mechanical frequency response of ovine renal tissue at low frequencies |
| title_short | Investigation of the mechanical frequency response of ovine renal tissue at low frequencies |
| title_sort | investigation of the mechanical frequency response of ovine renal tissue at low frequencies |
| topic | Frequency response Mechanical properties Renal tissue Resonance |
| url | https://doi.org/10.1038/s41598-025-01302-w |
| work_keys_str_mv | AT faezehazimipirsoltan investigationofthemechanicalfrequencyresponseofovinerenaltissueatlowfrequencies AT mohammadrezakarafi investigationofthemechanicalfrequencyresponseofovinerenaltissueatlowfrequencies |