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Evaluation of the Elastic and Viscoelastic Properties of Soft Materials...
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Evaluation of the Elastic and Viscoelastic Properties of Soft Materials via Sensing Technology

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: 28 February 2025 | Viewed by 2477

Special Issue Editors

Dr. Hasan Koruk

E-Mail Website
Guest Editor
National Physical Laboratory, Teddington TW11 0LW, UK
Interests: microbubbles; drug delivery; material characterization; ultrasound
Dr. Srinath Rajagopal

E-Mail Website
Guest Editor
National Physical Laboratory, Teddington TW11 0LW, UK
Interests: characterization of acoustic properties of materials; photoacoustics and ultrasound field characterization
Dr. Andre Victor Alvarenga

E-Mail Website
Guest Editor
National Physical Laboratory, Teddington TW11 0LW, UK
Interests: image processing; ultrasound; metrology

Special Issue Information

Dear Colleagues,

Identification of the viscoelastic properties of materials, including soft materials, is needed both in the laboratory and in the clinic. Various techniques, such as the indentation method, atomic force microscopy, and rheometry, are used for the identification of the elastic or viscoelastic properties of soft materials in the laboratory. Other techniques, such as magnetic resonance elastography and ultrasound elastography, are used for the in vivo evaluation of the mechanical properties of tissues. It is much more important today to develop techniques and standards to accurately determine the elastic and/or viscoelastic properties of materials. We invite researchers to submit their original research and review articles on the elastic and/or viscoelastic property evaluation of soft materials via different sensing technologies. Manuscripts on mathematical modelling and/or experimental research (in vitro, ex vivo, and in vivo) are welcome, as well as research and review articles assessing the uncertainty of the measured mechanical properties of soft materials.

Dr. Hasan Koruk
Dr. Srinath Rajagopal
Dr. Andre Victor Alvarenga
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • elastography
  • viscoelastic properties
  • viscosity
  • soft materials
  • ultrasound
  • magnetic resonance imaging
  • indentation
  • atomic force microscopy
  • rheometry

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Published Papers (2 papers)

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Research

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14 pages, 5740 KiB  
Communication
MR Elastography Using the Gravitational Transducer
by Omar Isam Darwish, Vitali Koch, Thomas J. Vogl, Marcos Wolf, Katharina Schregel, Arnie Purushotham, Valérie Vilgrain, Valérie Paradis, Radhouene Neji and Ralph Sinkus
Sensors 2024, 24(24), 8038; https://doi.org/10.3390/s24248038 - 17 Dec 2024
Viewed by 293
Abstract
MR elastography is a non-invasive imaging technique that provides quantitative maps of tissue biomechanical properties, i.e., elasticity and viscosity. Currently, hepatic MR elastography is deployed in the clinic to assess liver fibrosis in MAFLD patients. In addition, research has demonstrated MR elastography’s ability [...] Read more.
MR elastography is a non-invasive imaging technique that provides quantitative maps of tissue biomechanical properties, i.e., elasticity and viscosity. Currently, hepatic MR elastography is deployed in the clinic to assess liver fibrosis in MAFLD patients. In addition, research has demonstrated MR elastography’s ability to non-invasively assess chronic liver disease and to characterize breast cancer lesions and brain tumors. MR elastography requires efficient mechanical wave generation and penetration, motion-sensitized MRI sequences, and MR elastography inversion algorithms to retrieve the biomechanical properties of the tissue. MR elastography promises to enable non-invasive and versatile assessment of tissue, leading to better diagnosis and staging of several clinical conditions. Full article
(This article belongs to the Special Issue Evaluation of the Elastic and Viscoelastic Properties of Soft Materials via Sensing Technology)
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Review

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30 pages, 4306 KiB  
Review
A Comprehensive Review on the Viscoelastic Parameters Used for Engineering Materials, Including Soft Materials, and the Relationships between Different Damping Parameters
by Hasan Koruk and Srinath Rajagopal
Sensors 2024, 24(18), 6137; https://doi.org/10.3390/s24186137 - 23 Sep 2024
Viewed by 1596
Abstract
Although the physical properties of a structure, such as stiffness, can be determined using some statical tests, the identification of damping parameters requires a dynamic test. In general, both theoretical prediction and experimental identification of damping are quite difficult. There are many different [...] Read more.
Although the physical properties of a structure, such as stiffness, can be determined using some statical tests, the identification of damping parameters requires a dynamic test. In general, both theoretical prediction and experimental identification of damping are quite difficult. There are many different techniques available for damping identification, and each method gives a different damping parameter. The dynamic indentation method, rheometry, atomic force microscopy, and resonant vibration tests are commonly used to identify the damping of materials, including soft materials. While the viscous damping ratio, loss factor, complex modulus, and viscosity are quite common to describe the damping of materials, there are also other parameters, such as the specific damping capacity, loss angle, half-power bandwidth, and logarithmic decrement, to describe the damping of various materials. Often, one of these parameters is measured, and the measured parameter needs to be converted into another damping parameter for comparison purposes. In this review, the theoretical derivations of different parameters for the description and quantification of damping and their relationships are presented. The expressions for both high damping and low damping are included and evaluated. This study is considered as the first comprehensive review article presenting the theoretical derivations of a large number of damping parameters and the relationships among many damping parameters, with a quantitative evaluation of accurate and approximate formulas. This paper could be a primary resource for damping research and teaching. Full article
(This article belongs to the Special Issue Evaluation of the Elastic and Viscoelastic Properties of Soft Materials via Sensing Technology)
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