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Journal of Applied Biomaterials & Functional Materials

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https://www.readbyqxmd.com/read/30009658/in-vitro-evaluation-of-loop-design-influencing-the-sliding-of-orthodontic-wires-a-preliminary-study
#1
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/29991308/binders-alternative-to-portland-cement-and-waste-management-for-sustainable-construction-part-2
#2
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
#3
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
#4
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
#5
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/29983080/influence-of-pre-heating-and-ceramic-thickness-on-physical-properties-of-luting-agents
#6
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
https://www.readbyqxmd.com/read/29996741/binders-alternative-to-portland-cement-and-waste-management-for-sustainable-construction-part-1
#7
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/29629609/long-term-behaviors-of-phosphate-based-rapid-repairing-material-for-concrete-shafts-in-coal-mines
#9
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...
April 1, 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
#10
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...
April 1, 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
#11
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...
April 1, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29147994/printability-of-papers-recycled-from-toner-and-inkjet-printed-papers-after-deinking-and-recycling-processes
#12
Arif Karademir, Cem Aydemir, Dogan Tutak, Raja Aravamuthan
BACKGROUND: In our contemporary world, while part of the fibers used in the paper industry is obtained from primary fibers such as wood and agricultural plants, the rest is obtained from secondary fibers from waste papers. To manufacture paper with high optical quality from fibers of recycled waste papers, these papers require deinking and bleaching of fibers at desired levels. High efficiency in removal of ink from paper mass during recycling, and hence deinkability, are especially crucial for the optical and printability quality of the ultimate manufactured paper...
April 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29147993/preparation-and-characterization-of-gelatin-sericin-carboxymethyl-chitosan-medical-tissue-glue
#13
Min Liang, Zhenzhu Li, Cengceng Gao, Fuping Wang, Zhongmin Chen
BACKGROUND: The development and application of medical glue has been continuously expanding and advancing. However, there are few glues that combine low-cost with excellent biocompatibility. METHODS: We have prepared a medical tissue glue using a gelatin (Gel), sericin (SS) and carboxymethyl chitosan (CMCS) blend solution, cross-linked with 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC). The combination's characteristics and microstructure morphology were observed by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM)...
April 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29147992/monitoring-the-osseointegration-process-in-porous-ti6al4v-implants-produced-by-additive-manufacturing-an-experimental-study-in-sheep
#14
Mehmet C Kayacan, Yakup B Baykal, Tamer Karaaslan, Koray Özsoy, İlker Alaca, Burhan Duman, Yunus E Delikanlı
BACKGROUND: This study investigated the design and osseointegration process of transitive porous implants that can be used in humans and all trabecular and compact bone structure animals. The aim was to find a way of forming a strong and durable tissue bond on the bone-implant interface. METHODS: Massive and transitive porous implants were produced on a direct metal laser sintering machine, surgically implanted into the skulls of sheep and kept in place for 12 weeks...
April 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29048706/assessment-of-monomer-release-from-3-different-fissure-sealants
#15
K Görkem Ulu Güzel, Işıl Sönmez
BACKGROUND: Light-activated resin-based dental fissure sealants are the most widely accepted among clinicians. The objective of this study was to determine monomer release of 3 different light-curing fissure sealants in vitro: Control Seal (Voco, Germany), Fissurit FX (Voco, Germany) and R&D Series Fıssured Nova (Imicrly, Turkey). METHODS: Each material was polymerized with a curing light: Valo Cordless (Ultradent) LED in standard mode for 20 seconds (n = 27) and 40 seconds (n = 27) and in Xtra power mode (plasma arc) for 3 seconds (n = 27)...
April 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28967051/additive-manufacturing-of-titanium-alloys-in-the-biomedical-field-processes-properties-and-applications
#16
Francesco Trevisan, Flaviana Calignano, Alberta Aversa, Giulio Marchese, Mariangela Lombardi, Sara Biamino, Daniele Ugues, Diego Manfredi
The mechanical properties and biocompatibility of titanium alloy medical devices and implants produced by additive manufacturing (AM) technologies - in particular, selective laser melting (SLM), electron beam melting (EBM) and laser metal deposition (LMD) - have been investigated by several researchers demonstrating how these innovative processes are able to fulfil medical requirements for clinical applications. This work reviews the advantages given by these technologies, which include the possibility to create porous complex structures to improve osseointegration and mechanical properties (best match with the modulus of elasticity of local bone), to lower processing costs, to produce custom-made implants according to the data for the patient acquired via computed tomography and to reduce waste...
April 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28885666/double-acid-etching-treatment-of-dental-implants-for-enhanced-biological-properties
#17
Lluís Giner, Montse Mercadé, Sergi Torrent, Miquel Punset, Román A Pérez, Luis M Delgado, Francisco Javier Gil
BACKGROUND: The topographical features on the surface of dental implants have been considered as a critical parameter for enhancing the osseointegration of implants. In this work, we proposed a surface obtained by a combination of shot blasting and double acid etching. The double acid etching was hypothesized to increase the submicron topography and hence further stimulate the biological properties of the titanium implant. METHODS: The topographical features (surface roughness and real surface area), wettability and surface chemical composition were analyzed...
April 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28885665/comparison-of-2-plating-techniques-for-lateral-clavicle-fractures-using-a-new-standardized-biomechanical-testing-setup
#18
Cyrill Suter, Martin Majewski, Andrej M Nowakowski
BACKGROUND: Conservative treatment of lateral clavicle fractures (Neer type II) often ends with unsatisfactory results for patients. Operative treatment is thus gaining acceptance. A retrospective study found success using a double plate technique for these injuries. For the current study, a standardized testing setup was developed to compare the mechanical properties of single versus double plate technique for lateral clavicle fractures. METHODS: Six synthetic bones were tested for each technique...
April 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
#19
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...
March 1, 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
#20
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...
March 1, 2018: Journal of Applied Biomaterials & Functional Materials
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