Abstract:
:We report on the mechanical properties regarding self-cured acrylic polymethyl methacrylate (PMMA) reinforced with hexagonal boron nitride (h-BN) and stabilized zirconia (8Y ZrO2) nanopowders. The nanocomposites were prepared by using both manual and ultrasonic mixing techniques. The fabricated specimens were subjected to micro indentation, bending strength, and modulus of elasticity measurements. A fully complete polymerization process under liquid monomer was provided by ultrasonic mixing as evidenced by Fourier transform infrared (FTIR) measurement. Independently of the nanopowder used, the hardness, bending strength, and modulus of elasticity of the formed nanocomposites highly increase in values with the increase of the filler concentrations. Higher bending strengths and modulus of elasticity of the nanocomposite were recorded when using h-BN nanopowder fillers whereas hardness increases when using 8Y ZrO2 nanopowder. Results showed that with respect to the unloaded specimens made by manual mixing, ultrasonic mixing of PMMA with a 5 wt% h-BN increased the flexural strength (FS) and the modulus of elasticity or Young's modulus (YM) values to about 550% and 240%, respectively. However, a similar concentration of 8Y ZrO2 increased the Vickers Hardness numbers (VH) to about 400%. This may suggest that PMMA loaded with a combination of h-BN and 8Y ZrO2 nanopowders may lead to nanocomposites with outstanding mechanical performance.
journal_name
J Mech Behav Biomed Materauthors
Alqahtani Mdoi
10.1016/j.jmbbm.2020.103937subject
Has Abstractpub_date
2020-10-01 00:00:00pages
103937eissn
1751-6161issn
1878-0180pii
S1751-6161(20)30491-4journal_volume
110pub_type
杂志文章abstract::Conductive hearing loss, due to middle ear pathologies or traumas, affects more than 5% of the population worldwide. Passive prostheses to replace the ossicular chain mainly rely on piston-like titanium and/or hydroxyapatite devices, which in the long term suffer from extrusion. Although the basic shape of such device...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.103541
更新日期:2020-03-01 00:00:00
abstract::Intervertebral discs (IVDs) maintain flexibility of the spine and bear mechanical load. Annulus fibrosus (AF) defects are associated with IVD degeneration and herniation which disrupt biomechanical function and can cause pain. AF puncture injuries can induce IVD degeneration but are needed to inject therapies. Identif...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.03.024
更新日期:2019-07-01 00:00:00
abstract::The mechanical resistance of the stratum corneum, the outermost layer of skin, to deformation has been evaluated at different length scales using Atomic Force Microscopy. Nanomechanical surface mapping was first conducted using a sharp silicon tip and revealed that Young׳s modulus of the stratum corneum varied over th...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2015.09.014
更新日期:2016-02-01 00:00:00
abstract::Despite the great potential of Mg and its alloys as material for biodegradable implants, their low resistance to the simultaneous action of corrosion and mechanical stresses in the human body have hampered their use. Stress Corrosion Cracking has been reported as one of the most critical failure modes to overcome to a...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.103724
更新日期:2020-06-01 00:00:00
abstract::We use the existing data of force-extension experiments on F-actin molecules tied into knots to compute a value of 0.15 for the static friction coefficient for contact between different parts of the same molecule with itself. This estimate for protein-protein friction is relevant for the stabilization of the 273 known...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2009.08.005
更新日期:2010-01-01 00:00:00
abstract:OBJECTIVES:The causes of in vivo fractures of all-ceramic dental crowns are not yet fully understood. The fracture origins often occur in the cervical margin in the approximal area, but the reason for this is unclear. The aim of this study was to evaluate the fracture origin of 22 of clinically-failed alumina crowns. ...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2015.08.006
更新日期:2016-01-01 00:00:00
abstract::Imprecise knowledge on the composition-processing-microstructure-property correlation of titanium alloys combined with experimental data are used for developing rule based models for predicting the strength and elastic modulus of titanium alloys. The developed models are used for designing alloys suitable for orthoped...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2015.08.039
更新日期:2016-01-01 00:00:00
abstract::Recent developments showed that β-type Ti-Nb alloys are good candidates for hard tissue replacement and repair. However, their elastic moduli are still to be further reduced to match Young׳s modulus values of human bone, in order to avoid stress shielding. In the present study, the effect of indium (In) additions on t...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2014.07.010
更新日期:2014-11-01 00:00:00
abstract::The aim of the presented study was to estimate the material properties of human patellar ligaments from the elderly population by means of tensile tests. The experimental part was conducted on a custom tensile-testing device, with a built-in enclosure to simulate in-vivo conditions, using 25 (15 female, 10 male) bone-...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.103994
更新日期:2020-10-01 00:00:00
abstract::Breast implant durability and the mechanisms of rupture are important topics in the medical community, for patients, manufactures and regulatory medical agencies. After concerns about the Poly Implant Prosthesis (PIP) implants, the need for understanding the adverse outcomes and the failure mode to improve the breast ...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2017.04.005
更新日期:2017-08-01 00:00:00
abstract::The purpose of this study was to investigate how water aging of the resin cement influences the stress distribution in all-ceramic crowns and if there is an increase in the propensity for crown failure. The failure of all-ceramic crowns attributed to cement degradation was explored using a combination of experimental ...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2012.08.003
更新日期:2013-01-01 00:00:00
abstract:PURPOSE:Although total knee arthroplasty is a well-practiced surgical procedure, material properties and surface topography can contribute to the wear mechanisms and the implant failure. It has been advised that an increased femoral component's surface roughness of total knee prostheses may be a contributing factor to ...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.103959
更新日期:2020-10-01 00:00:00
abstract::The inelastic deformability of the mineralised matrix in bones is critical to their high toughness, but the nanoscale mechanisms are incompletely understood. Antler is a tough bone type, with a nanostructure composed of mineralised collagen fibrils ∼100nm diameter. We track the fibrillar deformation of antler tissue d...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2013.03.020
更新日期:2013-12-01 00:00:00
abstract::The goal of this study was to investigate the effect of resveratrol treatment on the osteogenic potential of human and rat adipose derived stem cells in a 3-D culture environment. Adipose derived stem cells (ADSCs) have been widely studied and have shown promise as a potential source of osteogenic progenitor cells. Pr...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2011.08.014
更新日期:2012-07-01 00:00:00
abstract::The lumbar facet capsular ligament (FCL) articulates with six degrees of freedom during spinal motions of flexion/extension, lateral bending, and axial rotation. The lumbar FCL is composed of highly aligned collagen fiber bundles on the posterior surface (oriented primarily laterally between the rigid articular facets...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2016.08.019
更新日期:2017-01-01 00:00:00
abstract::Proper statistical analysis is essential in the research studies. In particular, as regards the in vitro testing of the lumbar spine, the criteria for the standardization have been extensively discussed but the use of statistics has not been reviewed. Unfortunately, cadaveric testing is a very difficult and complex ex...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.103862
更新日期:2020-10-01 00:00:00
abstract::An optimized thickness of a transplantable auricular silicone scaffold was researched. The original image data were acquired from CT scans, and reverse modeling technology was used to build a digital 3D model of an auricle. The transplant process was simulated in ANSYS Workbench by finite element analysis (FEA), solid...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2015.08.032
更新日期:2016-01-01 00:00:00
abstract::Numerical studies of the intervertebral disc (IVD) are important to better understand the load transfer and the mechanobiological processes within the disc. Among the relevant calculations, fluid-related outputs are critical to describe and explore accurately the tissue properties. Porohyperelastic finite element mode...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2013.05.012
更新日期:2013-10-01 00:00:00
abstract:OBJECTIVES:The aim of the present study was to investigate the surface characteristic, biomechanical behavior, hemocompatibility, bone tissue response and osseointegration of the optimal micro-arc oxidation surface-treated titanium (MST-Ti) dental implant. MATERIALS AND METHODS:The surface characteristic, biomechanica...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2017.11.042
更新日期:2018-03-01 00:00:00
abstract::A variety of biochemical and physical processes participate in the creation and maintenance of collagen in biological tissue. Under mechanical stimuli these collagen fibers undergo continuous processes of morphoelastic change. The model presented here is motivated by experimental reports of stretch-stabilization of th...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.104154
更新日期:2021-01-01 00:00:00
abstract::In this study, the fabrication and properties of a synthetic keratoprosthesis skirt for use in osteo-odonto-keratoprosthesis (OOKP) surgery are discussed. In the search for a new material concept, bioactive glass and polymethyl methacrylate (PMMA)-based composites were prepared. Three different bioactive glasses (i.e....
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2011.05.025
更新日期:2011-11-01 00:00:00
abstract::In a study of spine injuries in Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OEF) from 2001-09, spinal fractures sustained by mounted soldiers accounted for 26% of all injuries, and of that, 43% were caused by explosions [1]. The thoracolumbar region is the most vulnerable area of the spine [2], and i...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.103398
更新日期:2019-12-01 00:00:00
abstract::The finite element analysis is an accepted method to predict vertebral body compressive strength. This study compares measurements obtained from in vitro tests with the ones from two different simulation models: clinical quantitative computer tomography (QCT) based homogenized finite element (hFE) models and pre-clini...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2012.11.018
更新日期:2014-05-01 00:00:00
abstract::Myocardial infarction (MI) is one of leading diseases to contribute to annual death rate of 5% in the world. In the past decades, significant work has been devoted to this subject. Biomechanics of infarcted left ventricle (LV) is associated with MI diagnosis, understanding of remodelling, MI micro-structure and biomec...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章,评审
doi:10.1016/j.jmbbm.2019.103591
更新日期:2020-03-01 00:00:00
abstract::Advances in adhesive technologies have increased indications for the use of inlays. Decrease in the bonded interface integrity due to wear has been cited as the main cause of its failure. However, this process of interface degradation and the influence of inlay material on damage mechanism appear to be poorly understo...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.103430
更新日期:2020-01-01 00:00:00
abstract::Dentin restoration produces weak interfaces because of the effects of bacterial microflora, biofilms, and mechanical, thermal, and shrinkage stresses. This results in secondary caries. Therefore, hydrophobic elastic polyurethane (PU) containing different concentrations of triclosan derivatives was synthesized and appl...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.103471
更新日期:2020-02-01 00:00:00
abstract::This work presents a novel microstructurally-based, multi-scale model describing the passive behaviour of skeletal muscle tissue. The model is based on the detailed description of the mechanically relevant parts of the microstructure. The effective constitutive material response is obtained by a homogenisation of mech...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2019.05.012
更新日期:2019-09-01 00:00:00
abstract::Monolithic dental prostheses fabricated from 3 mol.% yttria-stabilized zirconia (3YZ) are becoming increasingly popular. Recently, 5 mol.% yttria-stabilized zirconia (5YZ) which significantly improves the translucency of 3YZ has been prepared. However, its mechanical and microstructural properties, especially those af...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2020.103974
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVES:Bacterial contamination of breast implants and biofilm formation has been discussed as a major reason for implant loss and capsular contraction. Intra- and perioperative treatment of breast implants with disinfectants to prevent bacterial contamination has been frequently reported. Given the increasing aware...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2018.10.021
更新日期:2019-02-01 00:00:00
abstract::The use of micropatterning to create uniform surface morphologies has been cited as yielding improvements in the coefficient of friction during high velocity sliding contact. Studies have not been preformed to determine if these micropatterns could also be useful in biomedical applications, such as total joint replace...
journal_title:Journal of the mechanical behavior of biomedical materials
pub_type: 杂志文章
doi:10.1016/j.jmbbm.2011.08.022
更新日期:2012-03-01 00:00:00