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3D-printed bioinspired spicules: Strengthening and toughening via stereolithography J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-17 Fariborz Tavangarian, Sorour Sadeghzade, Niloofar Fani, Dariush Khezrimotlagh, Keivan Davami
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Validation of a double-semicircular notched configuration for mechanical testing of orthodontic thermoplastic aligner materials J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-14 Yuqing Zhang, Xiaozhuang Jin, Fabio Savoldi, Jianmin Han, Ray Kai Leung Su, Alex Fok, Jiang Chen, James Kit-Hon Tsoi
The potential of using specimens with a double-semicircular-notched configuration for performing tensile tests of orthodontic thermoplastic aligner materials was explored. Unnotched and double-semicircular-notched specimens were loaded in tension using a universal testing machine to determine their tensile strength, while finite element analysis (FEA) and digital image correlation (DIC) were used to
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SLA-3d printed building and characteristics of GelMA/HAP biomaterials with gradient porous structure J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-12 Qinghua Chen, Bin Zou, Xinfeng Wang, Xingguo Zhou, Gongxian Yang, Qingguo Lai, Yun Zhao
Developing a gradient porous scaffold similar to bone structure is gaining increasing attention in bone tissue engineering. The GelMA/HAP hydrogel has demonstrated potential in bone repair. Although 3D printing can build GelMA/HAP with porous structure, fabricating porous GelMA/HAP with gradient porosity and pore size in one step remains challenging. In this paper, a gradient porous structure with
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Elastic parameter identification of three-dimensional soft tissue based on deep neural network J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-12 Ziyang Hu, Shenghui Liao, Jianda Zhou, Qiuyang Chen, Renzhong Wu
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Biodegradable polyvinyl alcohol/nano-hydroxyapatite composite membrane enhanced by MXene nanosheets for guided bone regeneration J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-08 Kefan Yang, Siqi Lei, Xiaoli Qin, Xiaoxue Mai, Weibo Xie, Shengrong Yang, Jinqing Wang
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Retention and fatigue performance of modified polyetheretherketone clasps for removable prosthesis J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-08 Yichen Luo, Lin Qiu, Mingzhu Geng, Wei Zhang
Polyetheretherketone (PEEK) is considered as an alternative to metal material for removable partial denture (RPD). However, the retentive force is not strong as a metal RPD. This study investigated the retention and fatigue performance of PEEK clasps with different proportions of clasp arm engaging the undercut to verify a new strategy to improve their clinical performance. Three groups (n = 10/group)
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Prosthetic framework improvement using lattice structure: A comparative finite element study of a mandibular implant-supported prosthesis J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-05 Samuel Lemaire, Céline Bouby, Frédéric Thiebaud, Valérie Berry-Kromer
An alternative option was proposed regarding the prosthetic rehabilitation of a fully edentulous mandible using only four implants. The aim was to reduce the stiffness of the prosthetic framework. To that end, the alternative option consists of a prosthetic framework optimized with a porous structure. Mechanical differences were analyzed between non-prosthetic mandible and restored mandible either
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Evaluation of a vibration modeling technique for the in-vitro measurement of dental implant stability J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-04 Chester Jar, Andrew Archibald, Monica Gibson, Lindsey Westover
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Size effect in polymeric lattice materials with size-dependent Poisson's ratio caused by Cosserat elasticity J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-03 Hongxia Li, Xuewen Guo, Bao Zhu
Polymeric lattice materials with micro/nano-structures are attractive for applications in a wide range of bioengineering systems. Resent experimental results show that elastic constitutive law of polymer materials is in line with the Cosserat elasticity. In this work, a Cosserat continuum spectral element method is employed to explore the size-dependent mechanical performance of polymer polymeric lattice
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Trueness, physical properties, and surface characteristics of additive-manufactured zirconia crown J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-02 Su-Min Cho, Ryan Jin Young Kim, Ji-Man Park, Hye-Min Chung, Deok-Yeong Kim
This study aimed to conduct a comparison of trueness and physical and surface properties among five distinct types of additive manufactured (AM) zirconia crowns and zirconia crowns produced using the subtractive manufacturing (SM). Zirconia crowns were fabricated using five distinct techniques, each varying in the method of slurry transfer and photocuring source. Each experimental group utilized either
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Mechanical, structural, and morphological differences in the iliac arteries J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-01 Madihah Kazim, Sayed Ahmadreza Razian, Elham Zamani, Dheeraj Varandani, Ramin Shahbad, Ali Zolfaghari Sichani, Anastasia Desyatova, Majid Jadidi
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Development of ZTA (80% Al2O3/20% ZrO2) pre-sintered blocks for milling in CAD/CAM systems J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-04-01 Adolfo C.O. Lopes, Ernesto B. Benalcázar-Jalkh, Edmara T.P. Bergamo, Tiago M.B. Campos, Laura F. de Carvalho, Ricardo Tanaka, Luis A. Genova, Satoshi Yamaguchi, Lukasz Witek, Paulo G. Coelho, Estevam A. Bonfante
The present work aims to develop a production method of pre-sintered zirconia-toughened-alumina (ZTA) composite blocks for machining in a computer-aided design and computer-aided manufacturing (CAD-CAM) system. The ZTA composite comprised of 80% AlO and 20% ZrO was synthesized, uniaxially and isostatically pressed to generate machinable CAD-CAM blocks. Fourteen green-body blocks were prepared and pre-sintered
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Region partitioning of articular cartilage with streaming-potential-based parameters and indentation maps J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-31 E. Hamsayeh Abbasi Niasar, E.C. Brenneman Wilson, C.E. Quenneville, M.R. Maly, L.P. Li
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Exploiting light-based 3D-printing for the fabrication of mechanically enhanced, patient-specific aortic grafts J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-30 Lisa Asciak, Roger Domingo-Roca, Jamie R. Dow, Robbie Brodie, Niall Paterson, Philip E. Riches, Wenmiao Shu, Christopher McCormick
Despite polyester vascular grafts being routinely used in life-saving aortic aneurysm surgeries, they are less compliant than the healthy, native human aorta. This mismatch in mechanical behaviour has been associated with disruption of haemodynamics contributing to several long-term cardiovascular complications. Moreover, current fabrication approaches mean that opportunities to personalise grafts
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Specimen width affects vascular tissue integrity for in-vitro characterisation J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-28 Marta Alloisio, Joey J.M. Wolffs, T. Christian Gasser
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The effects of different grading approaches in additively manufactured dental implants on peri-implant bone stress: A finite element analysis J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-27 Osman Akbas, Andreas Greuling, Meike Stiesch
Additive manufacturing enables local grading of the stiffness of dental implants through targeted adjustment of the manufacturing parameters to meet patient specific requirements. The extent to which such a manufacturing approach affects the interaction between the implant body and the surrounding bone, and what grading is optimal, is currently insufficiently investigated. This study investigates the
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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. (IF 3.9) Pub Date : 2024-03-26 Amirhossein Shokrani, Ashkan Almasi, Bin Feng, David M. Pierce
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Data analysis of the influence of microstructure, composition, and loading conditions on stress corrosion cracking behavior of Mg alloys J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-26 Jianan Gu, D.C. Florian Wieland, Domonkos Tolnai, Birte Hindenlang, João Gustavo Pereira da Silva, Regine Willumeit-Römer, Daniel Höche
Stress corrosion cracking (SCC) can be a crucial problem in applying rare earth (RE) Magnesium alloys in environments where mechanical loads and electrochemical driven degradation processes interact. It has been proven already that the SCC behavior is associated with microstructural features, compositions, loading conditions, and corrosive media, especially in-vivo. However, it is still unclear when
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Effects of sintering additives and sintering methods on the mechanical, antimicrobial and optical properties of Si3N4 bioceramics J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-26 Songmo Du, Fei Li, Jie Zhang, Zhanglin Chen, Shijia Zhang, Shuo Zhao, Dengke Zhao, Binbin Fan, Kexin Chen, Guanghua Liu
SiN bioceramics were fabricated using GPS and SPS method with MgO-REO (RE = La, Nd, Gd, Ho and Lu) sintering additives. The effect of sintering methods and sintering additives on the grain growth, mechanical, antimicrobial properties and color of SiN bioceramics were studied. Samples sintered with GPS are composed of β-SiN and samples sintered with SPS are composed of α-SiN and β-SiN. The growth of
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Kirchhoff's law-based velocity-controlled motion models to predict real-time cutting forces in minimally invasive surgeries J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-25 Kostyantyn Malukhin, Timon Rabczuk, Kornel Ehmann, Michael J. Verta Jr.
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Bone quality in zebrafish vertebrae improves after alendronate administration in a glucocorticoid-induced osteoporosis model J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-24 Fabio Rocha Bohns, Riaz Akhtar, Yung-Jen Chuang, Po-Yu Chen
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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. (IF 3.9) Pub Date : 2024-03-23 Amirhossein Shokrani, Ashkan Almasi, Bin Feng, David M. Pierce
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Viscoelastic polyacrylamide MR elastography phantoms with tunable damping ratio independent of shear stiffness J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-22 L. Tyler Williams, Zheng Cao, Ali H. Lateef, Matthew D.J. McGarry, Elise A. Corbin, Curtis L. Johnson
Physiologically modeled test samples with known properties and characteristics, or phantoms, are essential for developing sensitive, repeatable, and accurate quantitative MRI techniques. Magnetic resonance elastography (MRE) is one such technique used to estimate tissue mechanical properties, and it is advantageous to use phantoms with independently tunable mechanical properties to benchmark the accuracy
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Effects of fissure length and angle on the fracture modes of 3D printed teeth model: Insights from DIC-based fracture tests and meshless numerical simulations J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-20 Shuyang Yu, Li Ma, Yuan Gao, Hao Zheng, Xueying Hu, Runyu Liu, Yue Shi, Weidong Yin
To investigate the influences of teeth fissure properties on their failure modes, 3D Printing technology is used to prepare the teeth models. The strain distributions of the teeth model surfaces at each moment of the loading processes are obtained by the DIC technique. And the progressive failure processes as well as the stress distributions of the teeth models are simulated by the improved Smoothed
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Nacre-like block lattice metamaterials with targeted phononic band gap and mechanical properties J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-18 Ravi Kiran Bollineni, Moustafa Sayed Ahmed, Shima Shahab, Reza Mirzaeifar
The 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
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Evaluation of gelatin bloom strength on gelatin methacryloyl hydrogel properties J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-18 Samantha G. Zambuto, Samyuktha S. Kolluru, Eya Ferchichi, Hannah F. Rudewick, Daniella M. Fodera, Kristin M. Myers, Silviya P. Zustiak, Michelle L. Oyen
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Impact of cryopreservation on elastomuscular artery mechanics J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-16 Colton J. Kostelnik, Kiersten J. Crouse, Jackson D. Goldsmith, John F. Eberth
Low 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
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Mechanical properties of clot made from human and bovine whole blood differ significantly J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-15 Gabriella P. Sugerman, Grace N. Bechtel, Zuzanna Malinowska, Sapun H. Parekh, Manuel K. Rausch
Thromboembolism – that is, clot formation and the subsequent fragmentation of clot – is a leading cause of death worldwide. Clots’ mechanical properties are critical determinants of both the embolization process and the pathophysiological consequences thereof. Thus, understanding and quantifying the mechanical properties of clots is important to our ability to treat and prevent thromboembolic disease
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Anisotropic plates with architected tendon network J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-15 Md Shahjahan Hossain, Hossein Ebrahimi, Ranajay Ghosh
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Use of marine occurrent extracts to enhance the stability of dentin extracellular matrix J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-14 Hyemin Yoo, Feng Gao, Gina Agostini-Walesch, Melisa Alabsy, John C. Mitchell, Marcela R. Carrilho
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Dimensional accuracy and simulation-based optimization of polyolefins and biocopolyesters for extrusion-based additive manufacturing and steam sterilization. J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-13 Felix Burkhardt, Carl G. Schirmeister, Christian Wesemann, Lukas Baur, Kirstin Vach, Massimo Nutini, Erik H. Licht, Marc C. Metzger, Rolf Mülhaupt, Benedikt C. Spies
Polyolefins exhibit robust mechanical and chemical properties and can be applied in the medical field, e.g. for the manufacturing of dentures. Despite their wide range of applications, they are rarely used in extrusion-based printing due to their warpage tendency. The aim of this study was to investigate and reduce the warpage of polyolefins compared to commonly used filaments after additive manufacturing
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Mechanical insights into jawbone characteristics under chronic kidney disease: A comprehensive nanoindentation approach J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-12 Chie Watanabe, Jingxiao Zhong, Sotaro Yamashita, Yusuke Kondo, Chihiro Masaki, Ryuji Hosokawa, Yo Shibata
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Fracture load in double keyhole notch PLA-Cu2O nanocomposites manufactured via compression molding and 3D printing: An experimental and numerical study J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-12 Javad Khodadad Hatkeposhti, Naser Kordani, Mohammad Akbarzadeh Pasha, Ahmad Barari
Polylactic acid (PLA) polymer has garnered significant attention due to its biocompatibility. The incorporation of copper oxide (CuO) nanoparticles into this polymer is expected to enhance its antibacterial, electrical, and thermal properties. This modification can potentially improve the performance of PLA in the fields of prosthetics manufacturing or printed circuit fabrication. However, the current
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Modelling the rate-dependent mechanical behaviour of the brain tissue J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-10 Afshin Anssari-Benam, Giuseppe Saccomandi
A 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
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Aging processes in dental thermoplastics – Thermoanalytical investigations and effects on Vickers as well as Martens hardness J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-09 Julia Kreitczick, Leonie Schmohl, Sebastian Hahnel, Ketpat Vejjasilpa, Michaela Schulz-Siegmund, Andreas Koenig
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Fabrication and characterization of a bioactive composite scaffold based on polymeric collagen/gelatin/nano β-TCP for alveolar bone regeneration J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-08 Chao Yao, Prisana Pripatnanont, Junbiao Zhang, Srisurang Suttapreyasri
One strategy to correct alveolar bone defects is use of bioactive bone substitutes to maintain the structure of defect site and facilitate cells and vessels' ingrowth. This study aimed to fabricate and characterize the freeze-dried bone regeneration scaffolds composed of polymeric Type I collagen, nano Beta-tricalcium phosphate (β-TCP), and gelatin. The stable structures of scaffolds were obtained
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The effect of triglycerol diacrylate on the printability and properties of UV curable, bio-based nanohydroxyapatite composites J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-08 Elizabeth V. Diederichs, Dibakar Mondal, Haresh Patil, Maud Gorbet, Thomas L. Willett
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Effect of mechanical fatigue on commercial bioprosthetic TAVR valve mechanical and microstructural properties J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-07 Christopher Noble, Alexander Hooke, Arush Rajotia, David Morse, Dan Dragomir-Daescu, Jeffery Salisbury, Melissa D. Young, Amir Lerman
Valvular 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
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Immature porcine cortical bone mechanical properties and composition change with maturation and displacement rate J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-06 Emily Szabo, Jay Bensusan, Ozan Akkus, Clare Rimnac
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Additively-manufactured Mg wire-reinforced PLDL-matrix composites for biomedical applications J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-02 C. Thompson, C. González, J. LLorca
Coupons of a medical grade PLDL polymer matrix uniaxially reinforced with a 15% volume fraction of Mg wires have been manufactured by fused filament fabrication for the first time. Two different types of Mg wires, without and with a surface treatment by plasma electrolytic oxidation were used. Both composite materials were subjected to degradation in phosphate buffer solution over a 3-week period,
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Implementing Machine Learning approaches for accelerated prediction of bone strain in acetabulum of a hip joint J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-02 Gowtham Nimmal Haribabu, Bikramjit Basu
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Structural parameters defining distribution of collagen fiber directions in human carotid arteries J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-02 Jiří Fischer, Aneta Heidrová, Markéta Hermanová, Zdeněk Bednařík, Marek Joukal, Jiří Burša
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Tunable structure and linear viscoelastic properties of poly(glycerol adipate urethane)-based elastomeric composites for tissue regeneration J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-02 Małgorzata Anna Gazińska, Anna Krokos
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Experimental characterization of residual deformations in human descending thoracic aortas J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-02 Marco Amabili, Giulio Franchini, Rinaldo Garziera
The effect of residual stresses on the deformation of human aortas under pulsatile pressure is relevant. Experimental measurements of residual deformations are necessary to characterize residual stresses in human aortas. For this reason, an experimental study is carried out. In the present study, longitudinal and circumferential strips from descending thoracic aortas obtained from 21 donors, harvested
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Dynamic topology optimization of 3D-Printed transtibial orthopedic implant using tunable isotropic porous metamaterials J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-02 Josué García-Ávila, Cynthia Pamela González-Gallegos, Victor Segura-Ibarra, Elisa Vazquez, Erika Garcia-Lopez, Ciro A. Rodríguez, Adriana Vargas-Martínez, Enrique Cuan-Urquizo, Erick Ramírez-Cedillo
In this paper, we introduce the design and manufacturing process of a transtibial orthopedic implant. We used medical-grade polyurethane polymer resin to fabricate a 3D porous architected implant with tunable isotropy, employing a high-speed printing method known as Continuous Liquid Interface Production (CLIP). Our objective is to enhance the weight-bearing capabilities of the bone structures in the
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Influence of coating dental enamel with a TiF4-loaded polymeric primer on the adverse effects caused by a bleaching gel with 35% H2O2 J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-03-02 Victória Peruchi, Rafael Antonio de Oliveira Ribeiro, Igor Paulino Mendes Soares, Lídia de Oliveira Fernandes, Juliana Rios de Oliveira, Maria Luiza Barucci Araújo Pires, Josimeri Hebling, Diana Gabriela Soares, Carlos Alberto de Souza Costa
To evaluate whether coating enamel with a polymeric primer (PPol) containing titanium tetrafluoride (TiF) before applying a bleaching gel with 35% HO (35% BG) increases esthetic efficacy, prevents changes in morphology and hardness of enamel, as well as reduces the cytotoxicity from conventional in-office bleaching. Standardized enamel/dentin discs were stained and bleached for 45 min (one session)
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Evaluating the stability of external fixators following pelvic injury: A systematic review of biomechanical testing methods J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-29 Annika Hela Meuser, Petr Henyš, Andreas Höch, Axel Gänsslen, Niels Hammer
This systematic review aims to identify previously used techniques in biomechanics to assess pelvic instability following pelvic injury, focusing on external fixation constructs. A systematic literature search was conducted to include biomechanical studies and to exclude clinical trials. Of an initial 4666 studies found, 38 met the inclusion criteria. 84% of the included studies were retrieved from
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Stress–strain relationship of individual hamstring muscles: A human cadaver study J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-28 Gakuto Nakao, Taiki Kodesho, Kazuma Yamagata, Kota Watanabe, Yuki Ohsaki, Masaki Katayose, Keigo Taniguchi
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Material characterization of human middle ear using machine-learning-based surrogate models J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-27 Arash Ebrahimian, Hossein Mohammadi, Nima Maftoon
This study aims to introduce a novel non-invasive method for rapid material characterization of middle-ear structures, taking into consideration the invaluable insights provided by the mechanical properties of ear tissues. Valuable insights into various ear pathologies can be gleaned from the mechanical properties of ear tissues, yet conventional techniques for assessing these properties often entail
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Impact of prior axonal injury on subsequent injury during brain tissue stretching – A mesoscale computational approach J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-27 Amirhamed Bakhtiarydavijani, Tonya W. Stone
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Exploring the hierarchical structure of lamellar bone and its impact on fracture behaviour: A computational study using a phase field damage model J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-27 Hamid Alijani, Ted J. Vaughan
Bone is a naturally occurring composite material composed of a stiff mineral phase and a compliant organic matrix of collagen and non-collagenous proteins (NCP). While diverse mineral morphologies such as platelets and grains have been documented, the precise role of individual constituents, and their morphology, remains poorly understood. To understand the role of constituent morphology on the fracture
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Energetically stable curve fitting to hyperelastic models based on uniaxial and biaxial tensile tests J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-27 Brigitta K. Tóth, András Lengyel
Hyperelastic constitutive laws in biomechanics are used to model soft tissues, and material model parameters are often determined by performing curve fitting on data from uniaxial or biaxial tensile tests. The strain energy function of the applied constitutive law must to be energetically stable; however, this condition is not inherently provided by most currently available models. This study provides
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Cell adhesion affects the properties of interstitial fluid flow: A study using multiscale poroelastic composite modeling J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-27 Hamidreza Dehghani, Gerhard A. Holzapfel, Michel Mittelbronn, Andreas Zilian
In this study, we conduct a multiscale, multiphysics modeling of the brain gray matter as a poroelastic composite. We develop a customized representative volume element based on cytoarchitectural features that encompass important microscopic components of the tissue, namely the extracellular space, the capillaries, the pericapillary space, the interstitial fluid, cell–cell and cell-capillary junctions
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Effect of density grading on the mechanical behaviour of advanced functionally graded lattice structures J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-27 Fabio Distefano, Gabriella Epasto
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A novel intraocular pressure predicting method based on hyperelastic mechanical model of cornea J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-26 Shi Yan, Xiaohui Song, Xiaocheng Hu, Ke Yao, Shaoxing Qu
Measuring intraocular pressure (IOP) is crucial and remains challenging in diagnosing glaucoma, as it is associated with cornea deformation during inflation. In this study, a three-dimensional analytical model based on hyperelastic constitutive relationship to predict correlation between cornea vertex displacement and the IOP is proposed. The analytical model is validated by rigorous experiments. Rabbit
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The impact of femoral head size on the wear evolution at contacting surfaces of total hip prostheses: A finite element analysis J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-25 Ariyan Ashkanfar, Shawn Ming Song Toh, Russell English, David J. Langton, Thomas J. Joyce
Total Hip Arthroplasty has been a revolutionary technique in restoring mobility to patients with damaged hip joints. The introduction of modular components of the hip prosthesis allowed for bespoke solutions based on the requirements of the patient. The femoral stem is designed with a conical trunnion to allow for assembly of different femoral head sizes based on surgical requirements. The femoral
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Micromechanical modelling of transverse fracture behaviour of lamellar bone using a phase-field damage model: The role of non-collagenous proteins and mineralised collagen fibrils J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-24 Hamid Alijani, Ted J. Vaughan
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Towards the mechanical characterisation of unruptured intracranial aneurysms: Numerical modelling of interactions between a deformation device and the aneurysm wall J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-21 J. Raviol, G. Plet, R. Hasegawa, K. Yu, H. Kosukegawa, M. Ohta, H. Magoariec, C. Pailler-Mattei
Intracranial aneurysm is a critical pathology related to the arterial wall deterioration. This work is an essential aspect of a large scale project aimed at providing clinicians with a non-invasive patient-specific decision support tool regarding the rupture risk assessment. A machine learning algorithm links the aneurysm shape observed and a database of UIA clinical images associated with wall mechanical
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Characterization of degradation kinetics of additively manufactured PLGA under variable mechanical loading paradigms J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-18 Anna N. Smith, Joseph B. Ulsh, Richa Gupta, My My Tang, Ana P. Peredo, Tim D. Teinturier, Rob L. Mauck, Sarah Gullbrand, Michael W. Hast
Controlled degradation of biodegradable poly-lactic-co-glycolic acid (PLGA) trauma implants may increase interfragmentary loading which is known to accelerate fracture healing. Additive manufacturing allows us to tune the mechanical properties of PLGA scaffolds; however, little is known about this novel approach. The purpose of this study was to use and models to determine the degradative kinetics
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Mechanical loading of ex vivo bovine trabecular bone in 3D printed bioreactor chambers J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-17 Brian A. Kunath, Kail Beloglowka, Roshni Rainbow, Heidi-Lynn Ploeg