Indentation mechanics and native collagen content in the cartilaginous endplate: A comparison between porcine cervical and human lumbar spines
This study characterized the regional indentation mechanics and native collagen content in cartilaginous endplates (CEPs) from the porcine cervical spine, young human lumbar spine, and aged human lumbar spine. Seventeen endplates were included in this study: six porcine cervical, nine young human lumbar, and two aged human lumbar. Width and depth measurements were obtained using a digital caliper and used to size-normalize and identify the central, anterior, posterior, and lateral regions. Regional microindentation tests were performed using a serial robot, where surface locations were loaded/unloaded at 0.1 mm/s and held ...
Source: Journal of the Mechanical Behavior of Biomedical Materials - January 1, 2024 Category: Materials Science Authors: Jackie D Zehr Joe Quadrilatero Jack P Callaghan Source Type: research

Rotational 3D shear wave elasticity imaging: Effect of knee flexion on 3D shear wave propagation in in vivo vastus lateralis
J Mech Behav Biomed Mater. 2023 Dec 23;150:106302. doi: 10.1016/j.jmbbm.2023.106302. Online ahead of print.ABSTRACTSkeletal muscle is a complex tissue, exhibiting not only direction-dependent material properties (commonly modeled as a transversely isotropic material), but also changes in observed material properties due to factors such as contraction and passive stretch. In this work, we evaluated the effect of muscle passive stretch on shear wave propagation along and across the muscle fibers using a rotational 3D shear wave elasticity imaging system and automatic analysis methods. We imaged the vastus lateralis of 10 hea...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 31, 2023 Category: Materials Science Authors: Courtney Trutna Paley Anna E Knight Felix Q Jin Spencer R Moavenzadeh Ned C Rouze Laura S Pietrosimone Lisa D Hobson-Webb Mark L Palmeri Kathryn R Nightingale Source Type: research

Development of a multilayer fetal membrane material model calibrated using bulge inflation mechanical tests
J Mech Behav Biomed Mater. 2023 Dec 28;150:106344. doi: 10.1016/j.jmbbm.2023.106344. Online ahead of print.ABSTRACTThe fetal membranes are an essential mechanical structure for pregnancy, protecting the developing fetus in an amniotic fluid environment and rupturing before birth. In cooperation with the cervix and the uterus, the fetal membranes support the mechanical loads of pregnancy. Structurally, the fetal membranes comprise two main layers: the amnion and the chorion. The mechanical characterization of each layer is crucial to understanding how each layer contributes to the structural performance of the whole membran...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 31, 2023 Category: Materials Science Authors: Daniel S Fidalgo Kayvan Samimi Michelle L Oyen Melissa C Skala Renato M N Jorge Marco P L Parente Ewelina Malanowska Dulce A Oliveira Kristin M Myers Source Type: research

Material properties in regenerating axolotl limbs using inverse finite element analysis
CONCLUSIONS: The mechanical environment of the proliferating cells changes drastically during limb regeneration. Understanding how the tissue's mechanical properties change during limb regeneration is critical for linking molecular-level matrix production of the cells to tissue-level behavior and mechanical signals.PMID:38160643 | DOI:10.1016/j.jmbbm.2023.106341 (Source: Journal of the Mechanical Behavior of Biomedical Materials)
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 31, 2023 Category: Materials Science Authors: Vineel Kondiboyina Timothy J Duerr James R Monaghan Sandra J Shefelbine Source Type: research

Variability in structure, morphology, and mechanical properties of the descending thoracic and infrarenal aorta around their circumference
J Mech Behav Biomed Mater. 2023 Dec 19;150:106332. doi: 10.1016/j.jmbbm.2023.106332. Online ahead of print.ABSTRACTAortic diseases, such as aneurysms, atherosclerosis, and dissections, demonstrate a preferential development and progression around the aortic circumference, resulting in a highly heterogeneous disease state around the circumference. Differences in the aorta's structural composition and mechanical properties may be partly responsible for this phenomenon. Our goal in this study was to analyze the mechanical and structural properties of the human aorta at its lateral, anterior, posterior, and medial quadrants in...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 31, 2023 Category: Materials Science Authors: Madihah Kazim Sayed Ahmadreza Razian Elham Zamani Dheeraj Varandani Ramin Shahbad Anastasia Desyatova Majid Jadidi Source Type: research

A versatile LTF-GO/gel hydrogel with antibacterial and antioxidative attributes for skin wound healing
J Mech Behav Biomed Mater. 2023 Dec 27;150:106342. doi: 10.1016/j.jmbbm.2023.106342. Online ahead of print.ABSTRACTSkin wound healing will become a pressing and difficult problem following injury to the skin structure. Persistent wounds, in particular, become more vulnerable to bacterial infections, which can contribute to persistent skin inflammation. Therefore, it is critical to create a wound dressing that promotes wound healing while also being antimicrobial. In the present work, a multifunctional biological activity hydrogel formed by enzymatic cross-linking was developed by introducing graphene oxide (GO) and lactofe...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 30, 2023 Category: Materials Science Authors: Yuhui Wang Mingbo Wang Xuhong He Yan Wei Ziwei Liang Shilong Ma Yuanyuan Wu Qi Liu Jie Wang Jiapu Wang Di Huang Source Type: research

Characteristic fatigue strength and reliability of dental glass-ceramics: Effect of distinct surface treatments - Hydrofluoric acid etching and silane treatment vs one-step self-etching ceramic primer
J Mech Behav Biomed Mater. 2023 Dec 22;150:106338. doi: 10.1016/j.jmbbm.2023.106338. Online ahead of print.ABSTRACTThe aim of this study was to mechanically characterize through flexural fatigue test two CAD-CAM glass-ceramics according to distinct surface etching protocols. To do so, feldspathic (FELD) and lithium disilicate (LD) glass ceramics were subjected to different surface treatments: (1) control - no treatment (Ctrl); (2) conventional protocol etching with 5% hydrofluoric acid followed by silane coupling agent application (HF + SIL; Monobond N, Ivoclar); or (3) using a self-etching ceramic primer (E&P; Monobon...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 30, 2023 Category: Materials Science Authors: Renatta Wrasse Temp Maria Gabriela Packaeser Renan Vaz Machry Kiara Serafini Dapieve Marilia Pivetta Rippe Gabriel Kalil Rocha Pereira Luiz Felipe Valandro Source Type: research

Physiochemical and mechanical characterisation of orthodontic 3D printed aligner material made of shape memory polymers (4D aligner material)
CONCLUSIONS: TC-85 demonstrates exceptional shape memory at oral temperature, improving adaptation, reducing force decay, and enabling, together with its higher flexibility, extensive tooth movement per step. Additionally, it maintains microhardness similar to thermoformed sheets, ensuring the durability and effectiveness of dental aligners.CLINICAL RELEVANCE: The 3D printed aligner material with shape memory characteristics (4D aligner) has revolutionized the orthodontic aligner field. It showed mechanical properties more suitable for orthodontic treatment than thermoforming materials. Additionally, it offers enhanced con...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 28, 2023 Category: Materials Science Authors: Islam Atta Christoph Bourauel Yasmine Alkabani Nesreen Mohamed Hoon Kimbe Abdulaziz Alhotan Ahmed Ghoneima Tarek Elshazly Source Type: research

Physiochemical and mechanical characterisation of orthodontic 3D printed aligner material made of shape memory polymers (4D aligner material)
CONCLUSIONS: TC-85 demonstrates exceptional shape memory at oral temperature, improving adaptation, reducing force decay, and enabling, together with its higher flexibility, extensive tooth movement per step. Additionally, it maintains microhardness similar to thermoformed sheets, ensuring the durability and effectiveness of dental aligners.CLINICAL RELEVANCE: The 3D printed aligner material with shape memory characteristics (4D aligner) has revolutionized the orthodontic aligner field. It showed mechanical properties more suitable for orthodontic treatment than thermoforming materials. Additionally, it offers enhanced con...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 28, 2023 Category: Materials Science Authors: Islam Atta Christoph Bourauel Yasmine Alkabani Nesreen Mohamed Hoon Kimbe Abdulaziz Alhotan Ahmed Ghoneima Tarek Elshazly Source Type: research

Physiochemical and mechanical characterisation of orthodontic 3D printed aligner material made of shape memory polymers (4D aligner material)
CONCLUSIONS: TC-85 demonstrates exceptional shape memory at oral temperature, improving adaptation, reducing force decay, and enabling, together with its higher flexibility, extensive tooth movement per step. Additionally, it maintains microhardness similar to thermoformed sheets, ensuring the durability and effectiveness of dental aligners.CLINICAL RELEVANCE: The 3D printed aligner material with shape memory characteristics (4D aligner) has revolutionized the orthodontic aligner field. It showed mechanical properties more suitable for orthodontic treatment than thermoforming materials. Additionally, it offers enhanced con...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 28, 2023 Category: Materials Science Authors: Islam Atta Christoph Bourauel Yasmine Alkabani Nesreen Mohamed Hoon Kimbe Abdulaziz Alhotan Ahmed Ghoneima Tarek Elshazly Source Type: research

Physiochemical and mechanical characterisation of orthodontic 3D printed aligner material made of shape memory polymers (4D aligner material)
CONCLUSIONS: TC-85 demonstrates exceptional shape memory at oral temperature, improving adaptation, reducing force decay, and enabling, together with its higher flexibility, extensive tooth movement per step. Additionally, it maintains microhardness similar to thermoformed sheets, ensuring the durability and effectiveness of dental aligners.CLINICAL RELEVANCE: The 3D printed aligner material with shape memory characteristics (4D aligner) has revolutionized the orthodontic aligner field. It showed mechanical properties more suitable for orthodontic treatment than thermoforming materials. Additionally, it offers enhanced con...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 28, 2023 Category: Materials Science Authors: Islam Atta Christoph Bourauel Yasmine Alkabani Nesreen Mohamed Hoon Kimbe Abdulaziz Alhotan Ahmed Ghoneima Tarek Elshazly Source Type: research

Invitro- invivo evaluations of green synthesized zinc oxide (ZnO) nanoparticles using Ipomoea aquatica leaf extract as matric and fillers
This study not only showcased an eco-friendly and cost-efficient method for synthesizing Zinc oxide nanoparticles but also highlighted their potential implications.PMID:38150815 | DOI:10.1016/j.jmbbm.2023.106330 (Source: Journal of the Mechanical Behavior of Biomedical Materials)
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 27, 2023 Category: Materials Science Authors: None Fahaduddin Trishna Bal Source Type: research

Unravelling anisotropic nonlinear shear elasticity in muscles: Towards a non-invasive assessment of stress in living organisms
J Mech Behav Biomed Mater. 2023 Dec 15;150:106325. doi: 10.1016/j.jmbbm.2023.106325. Online ahead of print.ABSTRACTAcoustoelasticity theory describes propagation of shear waves in uniaxially stressed medium and allows the retrieval of nonlinear elastic coefficients of tissues. In transverse isotropic medium such as muscles the theory leads to 9 different configurations of propagating shear waves (stress axis vs. fibers axis vs. shear wave polarization axis vs. shear wave propagation axis). In this work we propose to use 4 configurations to quantify these nonlinear parameters ex vivo and in vivo. Ex vivo experiments combini...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 27, 2023 Category: Materials Science Authors: Ha Hien Phuong Ngo Ricardo J Andrade Juliette Lancelot Aude Loumeaud Corentin Cornu Antoine Nordez Simon Chatelin Jean-Luc Gennisson Source Type: research

Numerical analysis of the mechanical behavior of ceramic dental implants based on Ce-TZP/Al < sub > 2 < /sub > O < sub > 3 < /sub > composite
This study aimed to identify the potential use of the ceramic composite ZrO2(CeO2)-Al2O3 as a dental implant due to its intrinsic geometry and different masticatory loads based on finite element simulations. Ceramic samples were sintered at 1500 °C-2h, and characterized: The mechanical properties of the ceramic composite (hardness, fracture toughness, flexural strength, Young's Modulus, and Poisson ratio) were determined, in addition to the relative density and its structural characteristics. Commercial dental implant designs (incisal and third-molar) on CAD models were used in this study as an initial implant geometry ap...
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 27, 2023 Category: Materials Science Authors: Pedro Ara újo da Costa Ward Fernando Ward Manuel Fellipe Rodrigues Pais Alves Cosme Roberto Moreira da Silva Luciano Pessanha Moreira Claudinei Dos Santos Source Type: research

Invitro- invivo evaluations of green synthesized zinc oxide (ZnO) nanoparticles using Ipomoea aquatica leaf extract as matric and fillers
This study not only showcased an eco-friendly and cost-efficient method for synthesizing Zinc oxide nanoparticles but also highlighted their potential implications.PMID:38150815 | DOI:10.1016/j.jmbbm.2023.106330 (Source: Journal of the Mechanical Behavior of Biomedical Materials)
Source: Journal of the Mechanical Behavior of Biomedical Materials - December 27, 2023 Category: Materials Science Authors: None Fahaduddin Trishna Bal Source Type: research