Journal of the Mechanical Behavior of Biomedical Materials This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Viscoelastic polyacrylamide MR elastography phantoms with tunable damping ratio independent of shear stiffness
In this study, we evaluate the use of LPAA/PAA gels as physiologically accurate phantoms with tunable damping ratio, independent of shear stiffness, via MRE. Phantoms were made with 15.3 wt% PAA while the LPAA concentration ranged from 4.5 wt% to 8.0 wt%. MRE was performed at 9.4 T with 400 Hz vibration on all phantoms revealing a strong, positive correlation between damping ratio and LPAA content (p < 0.001). There was no significant correlation between shear stiffness and LPAA content, confirming a constant PAA concentration yielded constant shear stiffness. Rheometry at 10 Hz was performed to verify the damping ratio...
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 27, 2024 Category: Materials Science Authors: L Tyler Williams Zheng Cao Ali H Lateef Matthew D J McGarry Elise A Corbin Curtis L Johnson Source Type: research

Aging processes in dental thermoplastics - Thermoanalytical investigations and effects on Vickers as well as Martens hardness
J Mech Behav Biomed Mater. 2024 Mar 9;154:106501. doi: 10.1016/j.jmbbm.2024.106501. Online ahead of print.ABSTRACTOBJECTIVE: The influence of various aging protocols, representing and accelerating influences present in the dental context, on possible changes in the microstructure and mechanical properties of thermoplastics was investigated. In order to minimize the complexity of the systems, first pure polymers and then later the equivalent dental polymeric materials were analyzed.MATERIALS AND METHODS: Pure polymers (Poly(methyl methacrylate) - PMMA, Polyoxymethylene homopolymer - POM-H, Polyether ether ketone - PEEK, Nyl...
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 26, 2024 Category: Materials Science Authors: Julia Kreitczick Leonie Schmohl Sebastian Hahnel Ketpat Vejjasilpa Michaela Schulz-Siegmund Andreas Koenig Source Type: research

Corrigendum to "Computational Modeling of Mouse Colorectum Capturing Longitudinal and Through-thickness Biomechanical Heterogeneity" [J. Mech. Behav. Biomed. Mater. 113 (2021) 104127]
J Mech Behav Biomed Mater. 2024 Mar 26:106287. doi: 10.1016/j.jmbbm.2023.106287. Online ahead of print.NO ABSTRACTPMID:38531764 | DOI:10.1016/j.jmbbm.2023.106287 (Source: Journal of the Mechanical Behavior of Biomedical Materials)
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 26, 2024 Category: Materials Science Authors: Amirhossein Shokrani Ashkan Almasi Bin Feng David M Pierce Source Type: research

Impact of cryopreservation on elastomuscular artery mechanics
J Mech Behav Biomed Mater. 2024 Mar 16;154:106503. doi: 10.1016/j.jmbbm.2024.106503. Online ahead of print.ABSTRACTLow temperatures slow or halt undesired biological and chemical processes, protecting cells, tissues, and organs during storage. Cryopreservation techniques, including controlled media exchange and regulated freezing conditions, aim to mitigate the physical consequences of freezing. Dimethyl sulfoxide (DMSO), for example, is a penetrating cryoprotecting agent (CPA) that minimizes ice crystal growth by replacing intracellular water, while polyvinyl alcohol (PVA) is a nonpenetrating CPA that prevents recrystalli...
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 24, 2024 Category: Materials Science Authors: Colton J Kostelnik Kiersten J Crouse Jackson D Goldsmith John F Eberth Source Type: research

Modelling the rate-dependent mechanical behaviour of the brain tissue
J Mech Behav Biomed Mater. 2024 May;153:106502. doi: 10.1016/j.jmbbm.2024.106502. Epub 2024 Mar 10.ABSTRACTA new modelling approach is employed in this work for application to the rate-dependent mechanical behaviour of the brain tissue, as an incompressible isotropic material. Extant datasets encompassing single- and multi-mode compression, tension and simple shear deformation(s) are considered, across a wide range of deformation rates from quasi-static to rates akin to blast loading conditions, in the order of 1000 s-1 . With a simple functional form and a reduced number of parameters, the model is shown to capture the co...
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 24, 2024 Category: Materials Science Authors: Afshin Anssari-Benam Giuseppe Saccomandi Source Type: research

Corrigendum to "Predicting the micromechanics of embedded nerve fibers using a novel three-layered model of mouse distal colon and rectum" [J. Mech. Beha. Biomed. Mater. 127 (2022) 105083]
J Mech Behav Biomed Mater. 2024 Mar 22:106286. doi: 10.1016/j.jmbbm.2023.106286. Online ahead of print.NO ABSTRACTPMID:38521644 | DOI:10.1016/j.jmbbm.2023.106286 (Source: Journal of the Mechanical Behavior of Biomedical Materials)
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 23, 2024 Category: Materials Science Authors: Amirhossein Shokrani Ashkan Almasi Bin Feng David M Pierce Source Type: research

Effect of mechanical fatigue on commercial bioprosthetic TAVR valve mechanical and microstructural properties
J Mech Behav Biomed Mater. 2024 Mar 7;154:106441. doi: 10.1016/j.jmbbm.2024.106441. Online ahead of print.ABSTRACTValvular structural deterioration is of particular concern for transcatheter aortic valve replacements due to their suspected shorter longevity and increasing use in younger patient populations. In this work we investigated the mechanical and microstructural changes in commercial TAVR valves composed of both glutaraldehyde fixed bovine and porcine pericardium (GLBP and GLPP) following accelerated wear testing (AWT) as outlined in ISO 5840 standards. This provided greater physiological relevance to the loading c...
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 22, 2024 Category: Materials Science Authors: Christopher Noble Alexander Hooke Arush Rajotia David Morse Dan Dragomir-Daescu Jeffery Salisbury Melissa D Young Amir Lerman Source Type: research

Mechanical insights into jawbone characteristics under chronic kidney disease: A comprehensive nanoindentation approach
This study sought to evaluate the time-dependent viscoelastic behaviors of rat jawbones, particularly in the scenarios both with and without CKD. We hypothesized that CKD might compromise the bone's innate toughening mechanisms, potentially owing to the time-dependent viscoelasticity of the bone matrix proteins. The maxillary and mandibular bones of Wistar rats were subjected to nanoindentation and Raman micro-spectroscopy. Load-hold-displacement curves from the cortical regions were obtained via nanoindentation and were mathematically characterized using a suitable viscoelastic constitutive model. Raman micro-spectroscopy...
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 22, 2024 Category: Materials Science Authors: Chie Watanabe Jingxiao Zhong Sotaro Yamashita Yusuke Kondo Chihiro Masaki Ryuji Hosokawa Yo Shibata Source Type: research

Nacre-like block lattice metamaterials with targeted phononic band gap and mechanical properties
J Mech Behav Biomed Mater. 2024 Mar 18;154:106511. doi: 10.1016/j.jmbbm.2024.106511. Online ahead of print.ABSTRACTThe extraordinary quasi-static mechanical properties of nacre-like composite metamaterials, such as high specific strength, stiffness, and toughness, are due to the periodic arrangement of two distinct phases in a "brick and mortar" structure. It is also theorized that the hierarchical periodic structure of nacre structures can provide wider band gaps at different frequency scales. However, the function of hierarchy in the dynamic behavior of metamaterials is largely unknown, and most current investigations ar...
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 22, 2024 Category: Materials Science Authors: Ravi Kiran Bollineni Moustafa Sayed Ahmed Shima Shahab Reza Mirzaeifar Source Type: research

Evaluation of gelatin bloom strength on gelatin methacryloyl hydrogel properties
J Mech Behav Biomed Mater. 2024 Mar 18;154:106509. doi: 10.1016/j.jmbbm.2024.106509. Online ahead of print.ABSTRACTGelatin methacryloyl (GelMA) hydrogels are widely used for a variety of tissue engineering applications. The properties of gelatin can affect the mechanical properties of gelatin gels; however, the role of gelatin properties such as bloom strength on GelMA hydrogels has not yet been explored. Bloom strength is a food industry standard for describing the quality of gelatin, where higher bloom strength is associated with higher gelatin molecular weight. Here, we evaluate the role of bloom strength on GelMA hydro...
Source: Journal of the Mechanical Behavior of Biomedical Materials - March 22, 2024 Category: Materials Science Authors: Samantha G Zambuto Samyuktha S Kolluru Eya Ferchichi Hannah F Rudewick Daniella M Fodera Kristin M Myers Silviya P Zustiak Michelle L Oyen Source Type: research