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Journal of Applied Biomaterials & Functional Materials

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https://www.readbyqxmd.com/read/30229701/experimental-assessment-of-biomechanical-properties-in-human-male-elbow-bone-subjected-to-bending-and-compression-loads
#1
Dilpreet Singh, Abhishek Rana, Saroj Kaler Jhajhria, Bhavuk Garg, Pulak Mohan Pandey, Dinesh Kalyanasundaram
This work discusses the biomechanical testing of 3 elbow bones, namely the humerus, ulna, and radius. There is a need to identify the mechanical properties of the bones at the organ level. The following tests were performed: 3-point bending, fracture toughness, and axial compression. Six sets of whole-bone samples of human male cadaveric humerus, ulna, and radius (age of donor: 35 to 56 years) were tested. The results were analyzed for statistical significance by 2-stage, repeated-measure analysis of variance (ANOVA)...
September 19, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/30176747/analysis-of-structure-and-properties-of-antibacterial-vascular-patch-used-in-abdominal-aorta-aneurysm-surgeries
#2
Zbigniew Draczyński, Tomasz Gąsiorowski, Beata Kolesińska, Maciej Boguń, Witold Sujka
BACKGROUND: Biocompatible materials are used for treatment of blood circulatory system diseases, especially abdominal aortic aneurysms. The most popular and often used are knitted and polymer vascular patches. The aim of this study was to optimize the manufacturing process of implantable materials, ensuring antibacterial activity useful for treating abdominal aorta aneurysms. METHODS: The vascular patch was manufactured from Trevira® yarn. The parameters of the intermediate product and vascular patch were tested according to standard procedures...
September 3, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/30139276/nanostructured-akermanite-glass-ceramic-coating-on-ti6al4v-for-orthopedic-applications
#3
Kazem Marzban, Sayed Mahmood Rabiee, Ebrahim Zabihi, Sara Bagherifard
Glass ceramics are widely used to enhance the functionality of inert metallic materials typically used for hard-tissue engineering. Biofunctionality of glass ceramics can in turn be significantly boosted with the addition of trace element dopants. Herein, we synthesized a nanostructured glass ceramic and used magnesium (Mg), which is known to promote osteoblast adhesion and proliferation, for further functionalization. The nanostructured akermanite glass ceramic (Ca2 MgSi2 O7 ) was used to coat Ti6Al4V substrates by the sol-gel method...
August 24, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/30045659/bmp-2-and-type-i-collagen-preservation-in-human-deciduous-teeth-after-demineralization
#4
Nina Bono, Paolo Tarsini, Gabriele Candiani
BACKGROUND: Great interest has recently been focused on tooth and tooth derivatives as suitable substrates for the treatment of alveolar bone defects. Here, we propose the use of demineralized baby teeth (BT) as potential grafting materials for bone augmentation procedures. METHODS: Particles of human BT (Ø < 1 mm) were demineralized by means of a chemical/thermal treatment. Demineralized BT particles were thoroughly characterized by scanning electron microscopy/energy dispersive X-ray analyses to evaluate the effects of the demineralization on BT topography and mineral phase composition, and by enzyme-linked immunosorbent assays (ELISA) to quantify collagen and bone morphogenetic protein-2 (BMP-2) protein contents...
July 26, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/30066601/resistance-of-coated-polyetheretherketone-lumbar-interbody-fusion-cages-against-abrasion-under-simulated-impaction-into-the-disc-space
#5
Annette Kienle, Alexander Krieger, Karel Willems, Hans-Joachim Wilke
In order to improve osseointegration, polyetheretherketone (PEEK) interbody fusion cages are frequently surface coated. The bonding strength of the coatings is mostly investigated under unrealistic loading conditions. To close this gap, in this study, uncoated and coated cages were loaded in a clinical setup in order to investigate their real resistance against abrasion. Six uncoated, six calcium phosphate (CaP) nanocoated, and six titanium (Ti) nanocoated PEEK cages were tested in this study. The experimental setup was designed to mimic cage impaction into the intervertebral disc space using polyurethane (PU) foam blocks as vertebral body substitutes...
July 1, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/30009658/in-vitro-evaluation-of-loop-design-influencing-the-sliding-of-orthodontic-wires-a-preliminary-study
#6
Fabio Savoldi, Corrado Paganelli
AIM: Resistance to sliding between bracket and wire is present, in a different magnitude, in most orthodontic treatments and it affects the biomechanics of the tooth movement. However, the influence of loop design on resistance to sliding is currently unknown. METHODS: In total, 12 stainless steel orthodontic wires of different sizes (0.016″×0.022″; 0.017″×0.025″), loop height (6mm, 8mm, 10mm), and loop type (open, close) were analyzed. Wires were tied with elastic ligatures to a bracket and tested during sliding at 0...
July 1, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29996741/binders-alternative-to-portland-cement-and-waste-management-for-sustainable-construction-part-1
#7
REVIEW
Luigi Coppola, Tiziano Bellezze, Alberto Belli, Maria Chiara Bignozzi, Fabio Bolzoni, Andrea Brenna, Marina Cabrini, Sebastiano Candamano, Marta Cappai, Domenico Caputo, Maddalena Carsana, Ludovica Casnedi, Raffaele Cioffi, Ombretta Cocco, Denny Coffetti, Francesco Colangelo, Bartolomeo Coppola, Valeria Corinaldesi, Fortunato Crea, Elena Crotti, Valeria Daniele, Sabino De Gisi, Francesco Delogu, Maria Vittoria Diamanti, Luciano Di Maio, Rosa Di Mundo, Luca Di Palma, Jacopo Donnini, Ilenia Farina, Claudio Ferone, Patrizia Frontera, Matteo Gastaldi, Chiara Giosuè, Loredana Incarnato, Barbara Liguori, Federica Lollini, Sergio Lorenzi, Stefania Manzi, Ottavio Marino, Milena Marroccoli, Maria Cristina Mascolo, Letterio Mavilia, Alida Mazzoli, Franco Medici, Paola Meloni, Glauco Merlonetti, Alessandra Mobili, Michele Notarnicola, Marco Ormellese, Tommaso Pastore, Maria Pia Pedeferri, Andrea Petrella, Giorgio Pia, Elena Redaelli, Giuseppina Roviello, Paola Scarfato, Giancarlo Scoccia, Giuliana Taglieri, Antonio Telesca, Francesca Tittarelli, Francesco Todaro, Giorgio Vilardi, Fan Yang
This review presents "a state of the art" report on sustainability in construction materials. The authors propose different solutions to make the concrete industry more environmentally friendly in order to reduce greenhouse gases emissions and consumption of non-renewable resources. Part 1-the present paper-focuses on the use of binders alternative to Portland cement, including sulfoaluminate cements, alkali-activated materials, and geopolymers. Part 2 will be dedicated to traditional Portland-free binders and waste management and recycling in mortar and concrete production...
July 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29996740/erratum
#8
(no author information available yet)
Printability of papers recycled from toner and inkjet-printed papers after deinking and recycling processes. J Appl Biomater Funct Mater. 2017; 16(2) 76-82. DOI: 10.5301/jabfm.5000386 The correct author sequence reads as follows: Dogan Tutak1 , Arif Karademir2 , Cem Aydemir1 , Raja Aravamuthan3 1 Department of Printing Technologies, School of Applied Science, Marmara University, Istanbul, Turkey 2 Department of Forest Product Engineering, Bursa Technical University, Bursa, Turkey 3 Department of Chemical and Paper Engineering, College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan, USA The author list has been corrected in the online article...
July 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29991308/binders-alternative-to-portland-cement-and-waste-management-for-sustainable-construction-part-2
#9
Luigi Coppola, Tiziano Bellezze, Alberto Belli, Maria C Bignozzi, Fabio Bolzoni, Andrea Brenna, Marina Cabrini, Sebastiano Candamano, Marta Cappai, Domenico Caputo, Maddalena Carsana, Ludovica Casnedi, Raffaele Cioffi, Ombretta Cocco, Denny Coffetti, Francesco Colangelo, Bartolomeo Coppola, Valeria Corinaldesi, Fortunato Crea, Elena Crotti, Valeria Daniele, Sabino De Gisi, Francesco Delogu, Maria V Diamanti, Luciano Di Maio, Rosa Di Mundo, Luca Di Palma, Jacopo Donnini, Ilenia Farina, Claudio Ferone, Patrizia Frontera, Matteo Gastaldi, Chiara Giosuè, Loredana Incarnato, Barbara Liguori, Federica Lollini, Sergio Lorenzi, Stefania Manzi, Ottavio Marino, Milena Marroccoli, Maria C Mascolo, Letterio Mavilia, Alida Mazzoli, Franco Medici, Paola Meloni, Glauco Merlonetti, Alessandra Mobili, Michele Notarnicola, Marco Ormellese, Tommaso Pastore, Maria Pia Pedeferri, Andrea Petrella, Giorgio Pia, Elena Redaelli, Giuseppina Roviello, Paola Scarfato, Giancarlo Scoccia, Giuliana Taglieri, Antonio Telesca, Francesca Tittarelli, Francesco Todaro, Giorgio Vilardi, Fan Yang
The paper represents the "state of the art" on sustainability in construction materials. In Part 1 of the paper, issues related to production, microstructures, chemical nature, engineering properties, and durability of mixtures based on binders alternative to Portland cement were presented. This second part of the paper concerns the use of traditional and innovative Portland-free lime-based mortars in the conservation of cultural heritage, and the recycling and management of wastes to reduce consumption of natural resources in the production of construction materials...
July 1, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29991307/modification-of-the-ti15mo-alloy-surface-through-tio-2-nanotube-growth-an-in-vitro-study
#10
André L R Rangel, Javier A M Chaves, Ana L A Escada, Reginaldo T Konatu, Ketul C Popat, Ana P Rosifini Alves Claro
In this study, ordered and uniform TiO2 nanotubular structures were obtained on the surface of the Ti15Mo alloy by anodic oxidation. The amorphous state of TiO2 nanotubes formed under different anodization conditions was investigated. Crystallization of TiO2 into anatase phase occurs during annealing at temperatures of around 400°C, whereas anatase to rutile transformation starts around 500°C and is completed at 800°C. Phase transformations in annealed samples led to morphological changes of tubular nanostructures, suggesting that the oxide layer formed at the nanotube/substrate interface serves as nucleation sites for more stable phases of TiO2 ...
July 1, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29974809/influence-of-injectable-microparticle-size-on-cardiac-progenitor-cell-response
#11
Elisabetta Rosellini, Niccoletta Barbani, Caterina Frati, Denise Madeddu, Diana Massai, Umberto Morbiducci, Luigi Lazzeri, Angela Falco, Costanza Lagrasta, Alberto Audenino, Maria Grazia Cascone, Federico Quaini
INTRODUCTION: Injectable scaffolds are emerging as a promising strategy in the field of myocardial tissue engineering. Among injectable scaffolds, microparticles have been poorly investigated. The goal of this study was the development of novel gelatin/gellan microparticles that could be used as an injectable scaffold to repair the infarcted myocardium. In particular, the effect of particle size on cardiac progenitor cell response was investigated. METHODS: Particles were produced by a water-in-oil emulsion method...
July 1, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29974806/nanotribological-response-of-a-c-h-coated-metallic-biomaterials-the-cases-of-stainless-steel-titanium-and-niobium
#12
Konstantinos Kapnisis, Marios Constantinou, Maria Kyrkou, Petros Nikolaou, Andreas Anayiotos, Georgios Constantinides
Background Wear and corrosion have been identified as two of the major forms of medical implant failures. This study aims to improve the surface, protective and tribological characteristics of bare metals used for medical implants, so as to improve scratch resistance and increase lifetime. Methods Hydrogenated amorphous carbon (a-C:H) films were deposited, using plasma enhanced chemical vapor deposition (PECVD), on stainless steel (SS), titanium (Ti) and niobium (Nb) metal plates. Nanomechanical and nanotribological responses were investigated before and after a-C:H deposition...
July 1, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29629609/long-term-behaviors-of-phosphate-based-rapid-repairing-material-for-concrete-shafts-in-coal-mines
#13
Feng Lei, Zhang Zhen-Ya, Wen Xiao-Dong, Xin Chao, Hu Dong-Yuan
INTRODUCTION: Concrete structures in shaft linings are apt to deteriorate prematurely and therefore prompt restoration is required. In considering this, desulphurization fly ash and machine-made tuff sand are employed to fabricate a phosphate-based rapid repairing material. METHODS: The long-term efficiency of the material is evaluated based on combined factors, so drying shrinkage, interfacial bonding strength, corrosion resistance, and combustibility of the specimens are tested and researched in this paper...
July 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29618225/the-examination-of-vegetable-and-mineral-oil-based-inks-effects-on-print-quality-green-printing-effects-with-different-oils
#14
Cem Aydemir, Semiha Yenidoğan, Arif Karademir, Emine Arman Kandirmaz
INTRODUCTION: Printing inks oil selection is related to the desired nature of the varnish in the ink production. Petroleum-derived mineral oils and vegetable oils can be used in offset inks. METHODS: In this study, the behaviors of vegetable- and mineral oil-based inks on uncoated and coated paper surfaces were investigated in terms of printability. Solid tone test prints were done with offset printing of these inks. Print gloss of the printed samples was measured and a light fastness test was implemented on these samples in order to determine the resistance to fading...
July 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29609492/cancer-cells-growing-on-perfused-3d-collagen-model-produced-higher-reactive-oxygen-species-level-and-were-more-resistant-to-cisplatin-compared-to-the-2d-model
#15
Qingxi Liu, Zijiang Zhang, Yupeng Liu, Zhanfeng Cui, Tongcun Zhang, Zhaohui Li, Wenjian Ma
INTRODUCTION: Three-dimensional (3D) collagen scaffold models, due to their ability to mimic the tissue and organ structure in vivo, have received increasing interest in drug discovery and toxicity evaluation. METHODS: In this study, we developed a perfused 3D model and studied cellular response to cytotoxic drugs in comparison with traditional 2D cell cultures as evaluated by cancer drug cisplatin. RESULTS: Cancer cells grown in perfused 3D environments showed increased levels of reactive oxygen species (ROS) production compared to the 2D culture...
July 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29609491/covalent-immobilization-of-coagulation-factor-viii-on-magnetic-nanoparticles-for-aptamer-development
#16
Maryam Tabarzad, Zeinab Sharafi, Jaber Javidi
INTRODUCTION: Magnetic nanoparticles (MNPs) are one of the most useful particulate systems in analytical applications such as specific aptamer selection. Proteins are the most noted targets of aptamer selection. Generally, covalently immobilized protein coated MNPs are more stable structures. METHODS: In this study, coagulation factor VIII (FVIII) was immobilized on MNPs. A silica coating provided isocyanate functional groups was considered to interact covalently with reactive groups of the protein, resulting in a stable protein immobilization...
July 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29609487/3d-printing-processes-for-photocurable-polymeric-materials-technologies-materials-and-future-trends
#17
REVIEW
Gabriele Taormina, Corrado Sciancalepore, Massimo Messori, Federica Bondioli
The aim of this review is a faithful report of the panorama of solutions adopted to fabricate a component using vat photopolymerization (VP) processes. A general overview on additive manufacturing and on the different technologies available for polymers is given. A comparison between stereolithography and digital light processing is also presented, with attention to different aspects and to the advantages and limitations of both technologies. Afterward, a quick overview of the process parameters is given, with an emphasis on the necessities and the issues associated with the VP process...
July 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29607729/in-vitro-and-in-vivo-assessment-of-biomedical-mg-ca-alloys-for-bone-implant-applications
#18
Preeti Makkar, Swapan Kumar Sarkar, Andrew R Padalhin, Byoung-Gi Moon, Young Seon Lee, Byong Taek Lee
BACKGROUND: Magnesium (Mg)-based alloys are considered to be promising materials for implant application due to their excellent biocompatibility, biodegradability, and mechanical properties close to bone. However, low corrosion resistance and fast degradation are limiting their application. Mg-Ca alloys have huge potential owing to a similar density to bone, good corrosion resistance, and as Mg is essential for Ca incorporation into bone. The objective of the present work is to determine the in vitro degradation and in vivo performance of binary Mg- xCa alloy ( x = 0...
July 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29582693/a-theoretical-analysis-and-finite-element-simulation-of-fixator-bone-system-stiffness-on-healing-progression
#19
Jianfeng Li, Xia Zhao, Xiaojie Hu, Chunjing Tao, Run Ji
INTRODUCTION: The unilateral external fixator has become a quick and easy application for fracture stabilization of the extremities; the main value for evaluation of mechanical stability of the external fixator is stiffness. The stiffness property of the external fixator affects the local biomechanical environment of fractured bone. METHODS: In this study, a theoretical model with changing Young's modulus of the callus is established by using the Castigliano's theory, investigating compression stiffness, torsional stiffness and bending stiffness of the fixator-bone system during the healing process...
July 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29983080/influence-of-pre-heating-and-ceramic-thickness-on-physical-properties-of-luting-agents
#20
Michele O Lima, Anderson Catelan, Giselle M Marchi, Débora Anl Lima, Luís Rm Martins, Flávio Hb Aguiar
PURPOSE: The objective of this in vitro study was to evaluate the influence of ceramic thickness and pre-heating of luting agents on their physical properties. MATERIALS AND METHODS: The materials RelyX Arc, RelyX Ultimate, RelyX Veneer, and Filtek Z350 Flow were handled at different temperatures (23°C or 54°C), inserted into matrix, and photoactivated through ceramic disks (0.75 mm or 1.5 mm). The following tests were performed ( n=8): degree of conversion, Knoop Hardness, cross-link density, water sorption, solubility, and ultimate tensile strength...
June 1, 2018: Journal of Applied Biomaterials & Functional Materials
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