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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
Chitosan (CS) and phloroglucinol (PhG), two extracts abundantly found in marine life, were investigated for their ability to biomodify demineralized dentin by enhancing collagen crosslinks and improving dentin extracellular matrix (ECM) mechanical and biochemical stability. Dentin obtained from non-carious extracted human molars were demineralized with phosphoric acid. Baseline Fourier-transform infrared
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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
The mechanical properties of the jawbone play a critical role in determining the successful integration of dental prostheses. Chronic kidney disease (CKD) has been identified to abnormally accelerate bone turnover rates. However, the impact of CKD on the mechanical characteristics of the jawbone has not been extensively studied. This study sought to evaluate the time-dependent viscoelastic behaviors
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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
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. Pure polymers (Poly(methyl methacrylate)
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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
3D printable biopolymer nanocomposites composed of hydroxyapatite nanoparticles and functionalized plant-based monomers demonstrate potential as sustainable and structural biomaterials. To increase this potential, their printability and performance must be improved. For extrusion-based 3D printing, such as Direct Ink Writing (DIW), printability is important for print fidelity. In this work, triglycerol
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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
Computational models of mature bone have been used to predict fracture; however, analogous study of immature diaphyseal fracture has not been conducted due to sparse experimental mechanical data. A model of immature bone fracture may be used to aid in the differentiation of accidental and non-accidental trauma fractures in young, newly ambulatory children (0–3 years). The objective of this study was
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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
The Finite Element (FE) methods for biomechanical analysis involving implant design and subject parameters for musculoskeletal applications are extensively reported in literature. Such an approach is manually intensive and computationally expensive with longer simulations times. Although Artificial Intelligence (AI) based approaches are implemented to a limited extent in biomechanics, such approaches
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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
Collagen fiber arrangement is decisive for constitutive description of anisotropic mechanical response of arterial wall. In this study, their orientation in human common carotid artery was investigated using polarized light microscopy and an automated algorithm giving more than 4·10 fiber angles per slice. In total 113 slices acquired from 18 arteries taken from 14 cadavers were used for fiber orientation
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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
Elastomeric biocomposites based on poly(glycerol adipate urethane) and hydroxyapatite were fabricated for tissue regeneration. The poly(glycerol adipate urethane) (PGAU) elastomeric composite matrices were obtained by chemical crosslinking of the poly(glycerol adipate) prepolymer (pPGA) with diisocyanate derivative of L-lysine. Two series of composites varying in the amount of L-lysine diisocyanate
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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
The incidence of hamstring muscle strain varies among muscles, suggesting that the mechanical stresses associated with elongation may differ among muscles. However, the passive mechanical properties of whole human muscles have rarely been directly measured and clarified. This study aimed to clarify the stress–strain relationship of the hamstring muscles using a soft-embalmed Thiel cadaver. The long
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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
Epidemiology studies of traumatic brain injury (TBI) show individuals with a prior history of TBI experience an increased risk of future TBI with a significantly more detrimental outcome. But the mechanisms through which prior head injuries may affect risks of injury during future head insults have not been identified. In this work, we show that prior brain tissue injury in the form of mechanically
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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
Lattice structures have found significant applications in the biomedical field due to their interesting combination of mechanical and biological properties. Among these, functionally graded structures sparked interest because of their potential of varying their mechanical properties throughout the volume, allowing the design of biomedical devices able to match the characteristics of a graded structure
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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
At the tissue-scale and above, there are now well-established structure-property relationships that provide good approximations of the biomechanical performance of bone through, for example, power-law relationships that relate tissue mineral density to elastic properties. However, below the tissue-level, the individual role of the constituents becomes prominent and these simple relationships tend to
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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
Previous bone culture methods have successfully implemented polycarbonate (PC) bioreactors to investigate bone adaptation to mechanical load; however, they are difficult to fabricate and have been limited to a 5 mm maximum specimen height. The objective of this study was to validate a custom-made 3D printed MED610 bioreactor system that addresses the limitations of the PC bioreactor and assess its
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Characterization of the concentration of agar-based soft tissue mimicking phantoms by impact analysis J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-16 Anne-Sophie Poudrel, Arthur Bouffandeau, Oriane Le Demeet, Giuseppe Rosi, Vu-Hieu Nguyen, Guillaume Haiat
In various medical fields, a change of soft tissue stiffness is associated with its physio-pathological evolution. While elastography is extensively employed to assess soft tissue stiffness , its application requires a complex and expensive technology. The aim of this study is to determine whether an easy-to-use method based on impact analysis can be employed to determine the concentration of agar-based
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Effects of Nd: YAG LASER irradiation and O2 plasma on the adhesive performance of poly-ether-ether-ketone (PEEK) J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-16 Tianjie Chen, Shan Xu, Xueqing Chen, Defei Wang, Chang Liu, Hong Liu
To evaluate the effects of neodymium-doped yttrium aluminum garnet (Nd: YAG) LASER irradiation and oxygen (O) plasma on the adhesive performance of polyether ether ketone (PEEK) and resin adhesive. Nd: YAG LASERs of varying powers and O plasma for different durations were used to modify PEEK. A total of 168 PEEK specimens were randomly divided into seven groups (n = 24/group): (A) Control group: untreated
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An interferometric-based tensile tester to resolve damage events within reconstituted multi-filaments collagen bundles J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-16 Hessameddin Yaghoobi, Chloe Tremblais, Alex Gareau, Matthieu Cointe, Alexey B. Tikhomirov, Laurent Kreplak, Daniel Labrie
Understanding how mechanical damage propagates in load-bearing tissues such as skin, tendons and ligaments, is key to developing regenerative medicine solutions for when these tissues fail. For collagenous tissues in particular, damage is typically assessed after mechanical testing using a broad range of microscopy techniques because standard tensile testing systems do not have the time and force sensitivity
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A numerical study of dehydration induced fracture toughness degradation in human cortical bone J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-16 Mihee Shin, Penny J. Martens, Thomas Siegmund, Jamie J. Kruzic, Bernd Gludovatz
A 2D plane strain extended finite element method (XFEM) model was developed to simulate three-point bending fracture toughness tests for human bone conducted in hydrated and dehydrated conditions. Bone microstructures and crack paths observed by micro-CT imaging were simulated using an XFEM damage model. Critical damage strains for the osteons, matrix, and cement lines were deduced for both hydrated
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Tribological behavior and in vitro biocompatibility of powder metallurgical Ti–15Mo/HA composite for bone repair J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-15 Fangxia Xie, Qichao Sun, Yanming Mu, Shu Cao, Guangqing Wu, Zeyi Lu
Ti–15Mo/HA composite was prepared by powder metallurgy, and the influence of Hydroxyapatite (HA) on the microstructure, tribological behavior and in vitro biocompatibility was studied by comparison with TC4. The results show that the Ti–15Mo/HA composite consists of increased α-Ti, decreased β-Ti and a variety of ceramic phases (CaTiO, Ca(PO), CaO, etc.) with the increase of HA content. The friction
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Bone remodelling prediction using mechanical stimulus with bone connectivity theory in porous implants J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-14 Zhenhao Zou, Vee San Cheong, Paul Fromme
Strain energy density (SED) is considered to be the primary remodelling stimulus influencing the process of bone growth into porous implants. A bone remodelling algorithm incorporating the concept of bone connectivity, that newly formed bone should only grow from existing bone, was developed to provide a more biologically realistic simulation of bone growth. Results showed that the new algorithm prevented
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Open-system force-elongation relationship of collagen in chemo-mechanical equilibrium with water J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-14 A.C. Deymier, P.A. Deymier
A significant deformation mechanism of collagen at low loads is molecular uncoiling and rearrangement. Although the effect of hydration and cross-linking has been investigated at larger loads when collagen undergoes molecular sliding, their effects on collagen molecular reorganization remain unclear. Here we develop two thermodynamic models that use the notion of open-system elasticity to elucidate
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Insights and mechanics-driven modeling of human cutaneous impact injuries J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-13 Omar Elsafty, Christopher A. Berkey, Reinhold H. Dauskardt
Cutaneous damage mechanisms related to dynamic fragment impacts are dependent on the impact angle, impact energy, and fragment characteristics including shape, volume, contact friction, and orientation. Understanding the cutaneous injury mechanism and its relationship to the fragment parameters is lacking compromising damage classification, treatment, and protection. Here we develop a high-fidelity
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Biomechanical behavior of molars restored with direct and indirect restorations in combination with deep margin elevation J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-12 Rijkje A. Bresser, Marco A. Carvalho, Lucas Z. Naves, H. Melma, Marco S. Cune, Marco M.M. Gresnigt
The existing knowledge is insufficient for comprehending the fatigue survival and fracture resistance of molars that have deep approximal direct and indirect restorations, whether with or without deep margin elevation (DME). The aim of this laboratory and in silico study is to investigate the fatigue survival, fracture strength, failure pattern and tooth deformation of molars restored with DME in combination
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Effect of chemical treatments of arundo donax L. fibre on mechanical and thermal properties of the PLA/PP blend composite filament for FDM 3D printing J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-10 Sarra Tablit, Rachida Krache, Salah Amroune, Mohammad Jawaid, Amina Hachaichi, Ahmad Safwan Ismail, Aatikah Meraj
Arundo donax L. is investigated in this study as a suitable reinforcing agent for PLA/PP waste blend 3D printing filament. To improve the compatibility of the fibre and polymer, the Arundo fibre was chemically modified using alkali and silane treatment. Untreated and treated fibres were extruded with Polymer blends before being 3D printed. Effect of chemical treatment on thermal, mechanical, and morphological
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Experimental evaluation of corneal stress-optic coefficients using a pair of force test J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-09 Hua-Ju Shih, Shan-Chien Cheng, Po-Jen Shih
Topography and tomography are valuable techniques for measuring the corneal shape, but they cannot directly assess its internal mechanical stresses. And nonuniform corneal stress plays a crucial biomechanical role in the progression of diseases and postoperative changes. Given the cornea's inherent transparency, analyzing corneal stresses using the photoelasticity method is highly advantageous. However
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A 3D-FEA study on the impact of different preparation forms and materials on posterior occlusal veneers J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-08 Junchen Xu, Junchi Ma, Zhaolin Tan, Qi Zhang, Jian Hu, Jin Li
To study the stress distribution and bonding performance in posterior occlusal veneers and tooth bodies under different preparation forms and materials. An isolated lower right first molar was prepared with non-retention type (type A), cavity-retained type (type B), and encircling-retention type (type C) forms. MicroCT images of the tooth were obtained and digitally converted into three-dimensional
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Influence of muscle length on the three-dimensional architecture and aponeurosis dimensions of rabbit calf muscles J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-07 Mischa Borsdorf, Stefan Papenkort, Markus Böl, Tobias Siebert
The function of a muscle is highly dependent on its architecture, which is characterized by the length, pennation, and curvature of the fascicles, and the geometry of the aponeuroses. During function, muscles regularly undergo changes in length, thereby altering their architecture. During passive muscle lengthening, fascicle length (FL) generally increases and the angle of fascicle pennation (FP) and
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Differences in the mechanical properties of intestinal tissue based on preservation freezing duration and temperature J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-07 Gregory S. Hirst, Sunandita Sarker, Benjamin S. Terry
In this study, tissue samples were stress tested to determine if freezing duration and temperature alter their mechanical properties. Tissue samples taken from the small intestine of pigs were assigned to 5 groups: fresh tissue, −28.9 °C for 7 days, −62.2 °C for 7 days, −28.9 °C for 30 days, and −62.2 °C for 30 days. Tissue was stored in PBS for the assigned temperature and duration until testing occurred
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Wear resistance and flexural properties of low force SLA- and DLP-printed splint materials in different printing orientations: An in vitro study J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-07 Philipp Simeon, Alexey Unkovskiy, Bardia Saadat Sarmadi, Robert Nicic, Petra Julia Koch, Florian Beuer, Franziska Schmidt
To investigate the influence of material and printing orientation on wear resistance and flexural properties of one low force SLA- and two DLP-printed splint materials and to compare these 3D-printed splints to a subtractively manufactured splint material. Two DLP-printed (V-Print splint, LuxaPrint Ortho Plus) and one low force SLA-printed (Dental LT Clear) material, where specimens were printed in
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Personalized lattice-structured prosthesis as a graftless solution for mandible reconstruction and prosthetic restoration: A finite element analysis J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-06 Guilherme Arthur Longhitano, Murillo Chiarelli, Daniel Prada, Cecília Amélia de Carvalho Zavaglia, Rubens Maciel Filho
Oral cavity tumors are a prevalent cause of mandible reconstruction surgeries. The mandible is vital for functions like oralization, respiration, mastication, and deglutition. Current mandible reconstruction methods have low success rates due to complications like plate fracture or exposure, infections, and screw loosening. Autogenous bone grafts are commonly used but carry the risk of donor region
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Hierarchical porous PLLA/ACP fibrous membrane towards bone tissue scaffold J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-05 Chen Meng, Xuzhao Liu, Jiashen Li
Electrospun fibres have emerged as vital components in developing tissue engineering scaffolds. Calcium phosphate-based materials, renowned for their bioactivity and biocompatibility, have garnered considerable attention in biomedical applications. This study focuses on the incorporation of amorphous calcium phosphate (ACP) nanoparticles into poly(L-lactic acid) (PLLA) to produce electrospun PLLA/ACP
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Compressive mechanical properties of dry antler cortical bone cylinders from different cervidae species J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-04 Pierre P. Picavet, Stéphanie Claeys, Etienne Rondia, Marc Balligand
Antlers are bony structures composed predominantly of primary osteons with unique mechanical properties due to their specific use by deer as weapon and shield. Antler bone fracture resistance has attracted prior scrutiny through experimental tests and theoretical models. To characterize antler mechanical properties, compression of cubes, or bending or tensioning of rectangular bars have been performed
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Quantification of long-term nonlinear stress relaxation of bovine trabecular bone J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-03 Thomas Gersie, Thom Bitter, David Wolfson, Robert Freeman, Nico Verdonschot, Dennis Janssen
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Multiscale characterization of electrospun non-wovens for corneal regeneration: Impact of microstructure on mechanical, optical and biological properties J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-03 Roksana Kurpanik, Marcin Gajek, Karol Gryń, Piotr Jeleń, Anna Ścisłowska – Czarnecka, Ewa Stodolak - Zych
The multiscale approach in designing substrates for regenerative medicine endows them with beneficial properties determining their performance in the body. Substrates for corneal regeneration should reveal the proper transparency, mechanical properties and microstructure to maintain the functionality of the regenerated tissue. In our study, series of non-wovens with different fibres orientation (random
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Skin viscoelasticity effects on the periodic mechanical stimuli propagation between skin layers J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-03 Saito Sakaguchi, Masashi Konyo
Our daily lives are constantly surrounded by dynamic stimuli, and our skin is deformed in a time-dependent manner. Although skin plays an important role in transmitting stimuli received at the surface to mechanoreceptors, few studies have investigated how differences in skin viscoelasticity affect the mechanical stimuli propagation in the skin. Therefore, using a finite element model, we evaluated
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Developing a transcatheter injectable nanoclay- alginate gel for minimally invasive procedures J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-03 Keren Zhao, George Varghese P J, Peng Chen, Jingjie Hu
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Decoration with electronegative 2D materials based on chemical transition layers on CFR-PEEK implants for promoting osteogenesis J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-03 Wen Qin, Tong Xing, Jing Ma, Bin Tang, Weiyi Chen
Due to the unique lamellar structures, physicochemical and biological properties, electronegative two-dimensional (2D) materials have been explored for surface modification of carbon fibers reinforced polyetheretherketone (CFR-PEEK) composite. Deposition of electronegative 2D materials based on a porous surface created by concentrated HSO has been studied to promote osteogenesis of CFR-PEEK. Generally
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Leaflet remodeling reduces tricuspid valve function in a computational model J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-02 Mrudang Mathur, Marcin Malinowski, Tomasz Jazwiec, Tomasz A. Timek, Manuel K. Rausch
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Drying irreversibly affects the elastic behavior of pelvic cortical bone J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-02 Marc Gebhardt, Volker Slowik, Hanno Steinke
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Reinforcement hybridization in staggered composites enhances wave attenuation performance J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-02 Junjie Liu, Hangyuan Zhang, Yang Gao, Zhongliang Yu, Chaonan Cong, Xiaoding Wei, Qingsheng Yang
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Thermoplastic clear dental aligners under cyclic compression loading: A mechanical performance analysis using acoustic emission technique J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-01 Claudia Barile, Claudia Cianci, Vimalathithan Paramsamy Kannan, Giovanni Pappalettera, Carmine Pappalettere, Caterina Casavola, Carmela Suriano, Domenico Ciavarella
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The design and characterisation of sinusoidal toolpaths using sub-zero bioprinting of polyvinyl alcohol J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-01 L. Gale, A. Panieraki, N. Mahmoodi, J.P. Crolla, L.E.J. Thomas-Seale
Sub-zero (°C) additive manufacturing (AM) systems present a promising solution for the fabrication of hydrogel structures with complex external geometry or a heterogeneous internal structure. Polyvinyl alcohol cryogels (PVA-C) are promising tissue-mimicking materials, with mechanical properties that can be designed to satisfy a wide variety of soft tissues. However, the design of more complex mechanical
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Polymerization shrinkage of contemporary dental resin composites: Comparison of three measurement methods with correlation analysis J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-01 Agata Szczesio-Wlodarczyk, Sufyan Garoushi, Pekka Vallittu, Kinga Bociong, Lippo Lassila
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Fabrication and biomechanical characterization of a spider silk reinforced fibrin-based vascular prosthesis J. Mech. Behav. Biomed. Mater. (IF 3.9) Pub Date : 2024-02-01 Clara Glomb, Mathias Wilhelmi, Sarah Strauß, Sarah Zippusch, Melanie Klingenberg, Thomas Aper, Peter M. Vogt, Arjang Ruhparwar, Florian Helms
With fibrin-based vascular prostheses, vascular tissue engineering offers a promising approach for the fabrication of biologically active regenerative vascular grafts. As a potentially autologous biomaterial, fibrin exhibits excellent hemo- and biocompatibility. However, the major problem in the use of fibrin constructs in vascular tissue engineering, which has so far prevented their widespread clinical