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Journal of Applied Biomaterials & Functional Materials

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https://www.readbyqxmd.com/read/29147993/preparation-and-characterization-of-gelatin-sericin-carboxymethyl-chitosan-medical-tissue-glue
#1
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)...
November 16, 2017: 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
#2
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...
November 13, 2017: 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
#3
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...
November 11, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29131299/corrosion-of-titanium-part-1-aggressive-environments-and-main-forms-of-degradation
#4
Davide Prando, Andrea Brenna, Maria Vittoria Diamanti, Silvia Beretta, Fabio Bolzoni, Marco Ormellese, MariaPia Pedeferri
Titanium has outstanding corrosion resistance due to the external natural oxide protective layer formed when it is exposed to an aerated environment. Despite this, titanium may suffer different forms of corrosion in severe environments: uniform corrosion, pitting and crevice corrosion, hydrogen embrittlement, stress-corrosion cracking, fretting corrosion and erosion. In this first review, forms of corrosion affecting titanium are analyzed based on a wide literature review. For each form of corrosion, the mechanism and most severe environment are reported according to the current understanding...
November 11, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29131298/decellularized-kidney-matrix-as-functional-material-for-whole-organ-tissue-engineering
#5
Marina Figliuzzi, Barbara Bonandrini, Andrea Remuzzi
Renal transplantation is currently the most effective treatment for end-stage renal disease, which represents one of the major current public health problems. However, the number of available donor kidneys is drastically insufficient to meet the demand, causing prolonged waiting lists. For this reason, tissue engineering offers great potential to increase the pool of donated organs for kidney transplantation, by way of seeding cells on supporting scaffolding material. Biological scaffolds are prepared by removing cellular components from the donor organs using a decellularization process with detergents, enzymes or other cell lysing solutions...
November 11, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29099535/effects-of-quartz-on-crystallization-behavior-of-mold-fluxes-and-microstructural-characteristics-of-flux-film
#6
Liu Lei, Han Xiuli, Li Mingduo, Zhang Di
BACKGROUND: Mold fluxes are mainly prepared using cement clinker, quartz, wollastonite, borax, fluorite, soda ash and other mineral materials. Quartz, as one of the most common and essential materials, was chosen for this study to analyze itseffects on crystallization temperature, critical cooling rate, crystal incubation time, crystallization ratio and phases of flux film. METHODS: We used the research methods of process mineralogy with the application of the single hot thermocouple technique, heat flux simulator, polarizing microscope, X-ray diffraction, etc...
October 31, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29076515/assessment-of-corrosion-resistance-of-cast-cobalt-and-nickel-chromium-dental-alloys-in-acidic-environments
#7
Sven Mercieca, Malcolm Caligari Conti, Joseph Buhagiar, Josette Camilleri
BACKGROUND: The aim of this study was to compare the degradation resistance of nickel-chromium (Ni-Cr) and cobalt-chromium (Co-Cr) alloys used as a base material for partial dentures in contact with saliva. METHODS: Wiron® 99 and Wironit Extra-Hard® were selected as representative casting alloys for Ni-Cr and Co-Cr alloys, respectively. The alloys were tested in contact with deionized water, artificial saliva and acidified artificial saliva. Material characterization was performed by X-ray diffractometry (XRD) and microhardness and nanohardness testing...
October 26, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29048706/assessment-of-monomer-release-from-3-different-fissure-sealants
#8
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)...
October 18, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29048705/retraction-what-role-do-periodontal-pathogens-play-in-osteoarthritis-and-periprosthetic-joint-infections-of-the-knee
#9
(no author information available yet)
J Appl Biomater Funct Mater. 2014; 12(1):13-20 What role do periodontal pathogens play in osteoarthritis and periprosthetic joint infections of the knee? Ehrlich GD, Hu FZ, Sotereanos N, Sewicke J, Parvizi J, Nara PL, Arciola CR PMID: 24921460 DOI: 10.5301/jabfm.5000203 Accepted on 09/11/2013 Available online on 02/06/2014 Published online on 12/06/2014 The above article appeared in J Appl Biomater Funct Mater 2014;12(1):13-20. The studies under the clinical trial set forth in the article were performed with a large group of co-investigators...
October 18, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29048704/hydroxyapatite-decreases-cytotoxicity-of-a-glass-ionomer-cement-by-calcium-fluoride-uptake-in-vitro
#10
Casiano Del Angel-Mosqueda, Rene Hernandez-Delgadillo, Osvelia E Rodríguez-Luis, María T Ramírez-Rodríguez, Silvia Munguía-Moreno, Norma V Zavala-Alonso, Juan M Solís-Soto, María A A Nakagoshi-Cepeda, Rosa I Sánchez-Nájera, Sergio E Nakagoshi-Cepeda, Claudio Cabral-Romero
BACKGROUND: Glass ionomer cements (GICs) are widely used in dentistry because of their remineralizing and cariostatic potential induced by fluoride. In vitro studies have reported cell toxicity triggered by GICs; however, the influence of hydroxyapatite (HAp) must be considered. The aim of this study was to evaluate the effect of HAp in decreasing the cytotoxicity of the GIC 3M Vitrebond in vitro. METHODS: Samples of 3M Vitrebond (powder, liquid and light-cured) were incubated in Dulbecco's modified Eagle's medium-Ham's F12 (DMEM-F12) for 24 hours at 37°C...
October 14, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29027180/effect-of-zrb2-addition-on-the-oxidation-behavior-of-si-sic-zrb2-composites-exposed-at-1500%C3%A2-c-in-air
#11
Claudio D'Amico, Giovanni Bianchi, Elisa Padovano, Sara Biamino, Alberta Aversa, Claudio Badini, Alberto Ortona
BACKGROUND: Silicon carbide ceramics obtained by reactive infiltration of silicon (SRI) have many industrial applications especially involving severe and high temperature conditions. In this study, the oxidation behavior in air of Si-SiC-ZrB2 systems at a high temperature (1500°C) for dwelling times of up to 48 hours was examined. METHODS: The oxidation process was analyzed on the basis of elemental maps and X-ray diffraction patterns taken, respectively, on the core and on the surface of the specimens, together with weight gains and the average thicknesses of the resulting scale...
October 6, 2017: 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
#12
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...
September 25, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28967050/potential-of-fish-scales-as-a-filling-material-in-surface-coating-of-cellulosic-paper
#13
Elif Ural, Emine A Kandirmaz
BACKGROUND: Paper is one of the important inputs for the printing industry, and the most important leading parameter in the printing process is its brightness. Brightness can be brought to paper using coatings and sizing. Desired surface properties and, most importantly, surface roughness can be achieved by changing the contents of the coating and sizing of the materials it contains. The use of biomaterials is becoming more important in the paper industry, as they represent substances with a lower carbon footprint...
September 25, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28885666/double-acid-etching-treatment-of-dental-implants-for-enhanced-biological-properties
#14
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...
September 8, 2017: 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
#15
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...
September 8, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29131300/engineered-scaffolds-and-cell-based-therapy-for-periodontal-regeneration
#16
Daniela Carmagnola, Mihai Tarce, Claudia Dellavia, Lia Rimondini, Elena M Varoni
BACKGROUND: The main objective of regenerative periodontal therapy is to completely restore the periodontal tissues lost. This review summarizes the most recent evidence in support of scaffold- and cell-based tissue engineering, which are expected to play a relevant role in next-generation periodontal regenerative therapy. METHODS: A literature search (PubMed database) was performed to analyze more recently updated articles regarding periodontal regeneration, scaffolds and cell-based technologies...
November 10, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28862732/preparation-bioactivity-and-mechanism-of-nano-hydroxyapatite-sodium-alginate-chitosan-bone-repair-material
#17
Jianguo Liao, Yanqun Li, Haiyan Li, Jingxian Liu, Yufen Xie, Jianping Wang, Yongxiang Zhang
BACKGROUND: As the major inorganic component of natural bone, nano-hydroxyapatite (n-HA) on its own is limited in its use in bone repair, due to its brittleness. Chitosan (CS) and sodium alginate (SAL) are used to reduce its brittleness and tendency to degradation. However, the compressive strength of the composite is still low, and its biological performance needs further study. METHODS: Nano-hydroxyapatite/sodium alginate/chitosan (n-HA/SAL/CS) composite was prepared via an in situ synthesis method...
August 11, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28862733/load-bearing-capacity-and-fracture-behavior-of-glass-fiber-reinforced-composite-cranioplasty-implants
#18
Jaakko M Piitulainen, Riina Mattila, Niko Moritz, Pekka K Vallittu
BACKGROUND: Glass fiber-reinforced composites (FRCs) have been adapted for routine clinical use in various dental restorations and are presently also used in cranial implants. The aim of this study was to measure the load-bearing capacity and failure type of glass FRC implants during static loading with and without interconnective bars and with different fixation modes. METHODS: Load-bearing capacities of 2 types of FRC implants with 4 different fixation modes were experimentally tested...
August 10, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28799638/ftir-characterization-and-release-of-bovine-serum-albumin-from-bioactive-glasses
#19
Wai-Ching Liu, Blake Ballenger, Amnah Algarni, Mariano Velez, Tien-Min G Chu
BACKGROUND: Bioactive glass has attracted substantial interest in orthopedics, but it has been less explored as a drug carrier. This study investigated the bovine serum albumin (BSA) release from bioactive 13-93B0 and 13-93B3 glasses. METHODS: Glass disks (13-93B0 and 13-93B3; n = 5) were loaded with 4 mg of BSA and coated under different chitosan-coating conditions. The amount of BSA released in phosphate-buffered saline (PBS) was evaluated, and a degradation study was performed to find out the weight loss and pH of PBS...
August 7, 2017: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/28759102/a-biaxial-strain-based-expansion-mechanism-for-auxetic-stent-deployment
#20
Faiza Bukhari, Umar Ansari, Murtaza Najabat Ali, Hafsah Akhtar, Sarim Asif, Umer Mohammad, Mariam Mir
BACKGROUND: Auxetics, a special class of materials, tend to expand both in the radial and longitudinal directions when a unidirectional tensile force is applied. Recently, studies have come up with new designs for auxetic vascular and nonvascular stents which are deployed with commercial balloon catheters. There are some inherent limitations associated with a unidirectional application of expansion force in the effective deployment of stents. This work proposed a solution to some of these limitations through the use of a biaxial mode of a predetermined strain-based expansion mechanism...
July 27, 2017: Journal of Applied Biomaterials & Functional Materials
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