Publications
1189 results found
Ponsot IMMM, Pontikes Y, Baldi G, et al., 2014, Magnetic Glass Ceramics by Sintering of Borosilicate Glass and Inorganic Waste, Materials, Vol: 7, Pages: 5565-5580, ISSN: 1996-1944
Ceramics and glass ceramics based on industrial waste have been widely recognized as competitive products for building applications; however, there is a great potential for such materials with novel functionalities. In this paper, we discuss the development of magnetic sintered glass ceramics based on two iron-rich slags, coming from non-ferrous metallurgy and recycled borosilicate glass. The substantial viscous flow of the glass led to dense products for rapid treatments at relatively low temperatures (900–1000 °C), whereas glass/slag interactions resulted in the formation of magnetite crystals, providing ferrimagnetism. Such behavior could be exploited for applying the obtained glass ceramics as induction heating plates, according to preliminary tests (showing the rapid heating of selected samples, even above 200 °C). The chemical durability and safety of the obtained glass ceramics were assessed by both leaching tests and cytotoxicity tests.
Chen Q, Cabanas-Polo S, Goudouri O-M, et al., 2014, Electrophoretic co-deposition of polyvinyl alcohol (PVA) reinforced alginate-Bioglass® composite coating on stainless steel: Mechanical properties and in-vitro bioactivity assessment, MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, Vol: 40, Pages: 55-64, ISSN: 0928-4931
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- Citations: 52
Velis CA, Franco-Salinas C, O'Sullivan C, et al., 2014, Up-cycling waste glass to minimal water adsorption/absorption lightweight aggregate by rapid low temperature sintering: optimization by dual process-mixture response surface methodology, Environmental Science and Technology (Washington), Vol: 48, Pages: 7527-7535, ISSN: 0013-936X
Mixed color waste glass extracted from municipal solid waste is either not recycled, in which case it is an environmental and financial liability, or it is used in relatively low value applications such as normal weight aggregate. Here, we report on converting it into a novel glass-ceramic lightweight aggregate (LWA), potentially suitable for high added value applications in structural concrete (upcycling). The artificial LWA particles were formed by rapidly sintering (<10 min) waste glass powder with clay mixes using sodium silicate as binder and borate salt as flux. Composition and processing were optimized using response surface methodology (RSM) modeling, and specifically (i) a combined process-mixture dual RSM, and (ii) multiobjective optimization functions. The optimization considered raw materials and energy costs. Mineralogical and physical transformations occur during sintering and a cellular vesicular glass-ceramic composite microstructure is formed, with strong correlations existing between bloating/shrinkage during sintering, density and water adsorption/absorption. The diametrical expansion could be effectively modeled via the RSM and controlled to meet a wide range of specifications; here we optimized for LWA structural concrete. The optimally designed LWA is sintered in comparatively low temperatures (825–835 °C), thus potentially saving costs and lowering emissions; it had exceptionally low water adsorption/absorption (6.1–7.2% w/wd; optimization target: 1.5–7.5% w/wd); while remaining substantially lightweight (density: 1.24–1.28 g.cm–3; target: 0.9–1.3 g.cm–3). This is a considerable advancement for designing effective environmentally friendly lightweight concrete constructions, and boosting resource efficiency of waste glass flows.
Seuss S, Lehmann M, Boccaccini AR, 2014, Alternating Current Electrophoretic Deposition of Antibacterial Bioactive Glass-Chitosan Composite Coatings, INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, Vol: 15, Pages: 12231-12242, ISSN: 1422-0067
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- Citations: 66
Doerfler A, Detsch R, Romeis S, et al., 2014, Biocompatibility of submicron Bioglass® powders obtained by a top-down approach, JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, Vol: 102, Pages: 952-961, ISSN: 1552-4973
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- Citations: 13
Silva R, Singh R, Sarker B, et al., 2014, Hybrid hydrogels based on keratin and alginate for tissue engineering, Journal of Materials Chemistry B, Vol: 2, Pages: 5441-5451, ISSN: 2050-7518
Novel hybrid hydrogels based on alginate and keratin were successfully produced for the first time. The self-assembly properties of keratin, and its ability to mimic the extracellular matrix were combined with the excellent chemical and mechanical stability and biocompatibility of alginate to produce 2D and 3D hybrid hydrogels. These hybrid hydrogels were prepared using two different approaches: sonication, to obtain 2D hydrogels, and a pressure-driven extrusion technique to produce 3D hydrogels. All results indicated that the composition of the hydrogels had a significant effect on their physical properties, and that they can easily be tuned to obtain materials suitable for biological applications. The cell-material interaction was assessed through the use of human umbilical vein endothelial cells, and the results demonstrated that the alginate/keratin hybrid biomaterials supported cell attachment, spreading and proliferation. The results proved that such novel hybrid hydrogels might find applications as scaffolds for soft tissue regeneration. © 2014 the Partner Organisations.
Pishbin F, Mourino V, Flor S, et al., 2014, Electrophoretic Deposition of Gentamicin-Loaded Bioactive Glass/Chitosan Composite Coatings for Orthopaedic Implants, ACS APPLIED MATERIALS & INTERFACES, Vol: 6, Pages: 8796-8806, ISSN: 1944-8244
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- Citations: 138
Chen Q, Perez de Larraya U, Garmendia N, et al., 2014, Electrophoretic deposition of cellulose nanocrystals (CNs) and CNs/alginate nanocomposite coatings and free standing membranes, COLLOIDS AND SURFACES B-BIOINTERFACES, Vol: 118, Pages: 41-48, ISSN: 0927-7765
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- Citations: 46
Qazi TH, Rai R, Dippold D, et al., 2014, Development and characterization of novel electrically conductive PANI-PGS composites for cardiac tissue engineering applications, ACTA BIOMATERIALIA, Vol: 10, Pages: 2434-2445, ISSN: 1742-7061
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- Citations: 169
Diba M, Goudouri O-M, Tapia F, et al., 2014, Magnesium-containing bioactive polycrystalline silicate-based ceramics and glass-ceramics for biomedical applications, CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, Vol: 18, Pages: 147-167, ISSN: 1359-0286
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- Citations: 157
Rivadeneira J, Di Virgilio AL, Audisio MC, et al., 2014, Evaluation of antibacterial and cytotoxic effects of nano-sized bioactive glass/collagen composites releasing tetracycline hydrochloride, JOURNAL OF APPLIED MICROBIOLOGY, Vol: 116, Pages: 1438-1446, ISSN: 1364-5072
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- Citations: 29
Ding Y, Roether JA, Boccaccini AR, et al., 2014, Fabrication of electrospun poly (3-hydroxybutyrate)/poly (ε-caprolactone)/silica hybrid fibermats with and without calcium addition, EUROPEAN POLYMER JOURNAL, Vol: 55, Pages: 222-234, ISSN: 0014-3057
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- Citations: 45
Porwal H, Grasso S, Cordero-Arias L, et al., 2014, Processing and bioactivity of 45S5 Bioglass<SUP>A®</SUP>-graphene nanoplatelets composites, JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, Vol: 25, Pages: 1403-1413, ISSN: 0957-4530
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- Citations: 46
Rohanová D, Boccaccini AR, Horkavcová D, et al., 2014, Is non-buffered DMEM solution a suitable medium for in vitro bioactivity tests?, Journal of Materials Chemistry B, Vol: 2, Pages: 5068-5076, ISSN: 2050-7518
Several laboratories had tested bioactivity of the materials in commercially available solution DMEM (Dulbecco's Modified Eagle's Medium) that is normally used for cultivation of cell cultures. The objective of this work was to find out whether it is possible to replace TRIS-buffered SBF currently used for bioactivity tests with the non-buffered DMEM solution. To understand the role of the organic part of the DMEM solution in the process of crystallization, we have prepared non-buffered solution simulating only its inorganic part (identified as I-solution). It was found that under static-dynamic test conditions calcite (CaCO3) and the amorphous phase of calcium phosphate (ACP) formed on the surface of the glass-ceramic (45S5 bioactive glass based) scaffold exposed to both solutions. Additionally, halite (NaCl) formed at the beginning of exposure to DMEM. Hydroxyapatite phase was not detected on the surface in either non-buffered solution. Organic components contained in the DMEM solution failed to prevent formation of crystalline phases. The present results indicate that it is not recommendable to use DMEM for bioactivity tests of glass-ceramic materials due to its low concentration of Ca2+ ions, high concentration of HCO 3- ions and the necessity to maintain sterile environment during the test. © 2014 the Partner Organisations.
Carbajal L, Serena S, Caballero A, et al., 2014, Role of ZnO additions on the β/α phase relation in TCP based materials: Phase stability, properties, dissolution and biological response, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 34, Pages: 1375-1385, ISSN: 0955-2219
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- Citations: 19
Arcos D, Boccaccini AR, Bohner M, et al., 2014, The relevance of biomaterials to the prevention and treatment of osteoporosis, ACTA BIOMATERIALIA, Vol: 10, Pages: 1793-1805, ISSN: 1742-7061
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- Citations: 111
Amler E, Filova E, Buzgo M, et al., 2014, Functionalized nanofibers as drug-delivery systems for osteochondral regeneration, NANOMEDICINE, Vol: 9, Pages: 1083-1094, ISSN: 1743-5889
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- Citations: 14
Roether JA, Rai R, Wolf R, et al., 2014, Biodegradable poly(glycerol sebacate)/poly(3-hydroxybutyrate)-TiO<sub>2</sub> nanocomposites: fabrication and characterisation, MATERIALS SCIENCE AND TECHNOLOGY, Vol: 30, Pages: 574-581, ISSN: 0267-0836
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- Citations: 11
Cicek B, Tucci A, Bernardo E, et al., 2014, Development of glass-ceramics from boron containing waste and meat bone ash combinations with addition of waste glass, CERAMICS INTERNATIONAL, Vol: 40, Pages: 6045-6051, ISSN: 0272-8842
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- Citations: 30
Grigoriadou I, Nianias N, Hoppe A, et al., 2014, Evaluation of silica-nanotubes and strontium hydroxyapatite nanorods as appropriate nanoadditives for poly(butylene succinate) biodegradable polyester for biomedical applications, COMPOSITES PART B-ENGINEERING, Vol: 60, Pages: 49-59, ISSN: 1359-8368
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- Citations: 35
Lu W, Ji K, Kirkham J, et al., 2014, Bone tissue engineering by using a combination of polymer/Bioglass composites with human adipose-derived stem cells, CELL AND TISSUE RESEARCH, Vol: 356, Pages: 97-107, ISSN: 0302-766X
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- Citations: 42
Rottensteiner U, Sarker B, Heusinger D, et al., 2014, In vitro and in vivo Biocompatibility of Alginate Dialdehyde/Gelatin Hydrogels with and without Nanoscaled Bioactive Glass for Bone Tissue Engineering Applications, Materials, Vol: 7, Pages: 1957-1974, ISSN: 1996-1944
In addition to good mechanical properties needed for three-dimensional tissue engineering, the combination of alginate dialdehyde, gelatin and nano-scaled bioactive glass (45S5) is supposed to combine excellent cellular adhesion, proliferation and differentiation properties, good biocompatibility and predictable degradation rates. The goal of this study was to evaluate the in vitro and in vivo biocompatibility as a first step on the way to its use as a scaffold in bone tissue engineering. In vitro evaluation showed good cell adherence and proliferation of bone marrow derived mesenchymal stem cells seeded on covalently crosslinked alginate dialdehyde-gelatin (ADA-GEL) hydrogel films with and without 0.1% nano-Bioglass® (nBG). Lactate dehydrogenase (LDH)- and mitochondrial activity significantly increased in both ADA-GEL and ADA-GEL-nBG groups compared to alginate. However, addition of 0.1% nBG seemed to have slight cytotoxic effect compared to ADA-GEL. In vivo implantation did not produce a significant inflammatory reaction, and ongoing degradation could be seen after four weeks. Ongoing vascularization was detected after four weeks. The good biocompatibility encourages future studies using ADA-GEL and nBG for bone tissue engineering application. © 2014 by the authors.
Raddaha NS, Cordero-Arias L, Cabanas-Polo S, et al., 2014, Electrophoretic Deposition of Chitosan/h-BN and Chitosan/h-BN/TiO2 Composite Coatings on Stainless Steel (316L) Substrates, Materials, Vol: 7, Pages: 1814-1829, ISSN: 1996-1944
This article presents the results of an experimental investigation designed to deposit chitosan/hexagonal boron nitride (h-BN) and chitosan/h-BN/titania (TiO2) composites on SS316L substrates using electrophoretic deposition (EPD) for potential antibacterial applications. The influence of EPD parameters (voltage and deposition time) and relative concentrations of chitosan, h-BN and TiO2 in suspension on deposition yield was studied. The composition and structure of deposited coatings were investigated by FTIR, XRD and SEM. It was observed that h-BN and TiO2 particles were dispersed in the chitosan matrix through simultaneous deposition. The adhesion between the electrophoretic coatings and the stainless steel substrates was tested by using tape test technique, and the results showed that the adhesion strength corresponded to 3B and 4B classes. Corrosion resistance was evaluated by electrochemical polarization curves, indicating enhanced corrosion resistance of the chitosan/h-BN/TiO2 and chitosan/h-BN coatings compared to the bare stainless steel substrate. In order to investigate the in-vitro inorganic bioactivity, coatings were immersed in simulated body fluid (SBF) for 28 days. FTIR and XRD results showed no formation of hydroxyapatite on the surface of chitosan/h-BN/TiO2 and chitosan/h-BN coatings, which are therefore non bioactive but potentially useful as antibacterial coatings. © 2014 by the authors.
Bertolla L, Dlouhy I, Philippart A, et al., 2014, Mechanical reinforcement of Bioglass®-based scaffolds by novel polyvinyl-alcohol/microfibrillated cellulose composite coating, MATERIALS LETTERS, Vol: 118, Pages: 204-207, ISSN: 0167-577X
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- Citations: 14
Hoppe A, Sarker B, Detsch R, et al., 2014, In vitro reactivity of Sr-containing bioactive glass (type 1393) nanoparticles, JOURNAL OF NON-CRYSTALLINE SOLIDS, Vol: 387, Pages: 41-46, ISSN: 0022-3093
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- Citations: 44
Nooeaid P, Roether JA, Weber E, et al., 2014, Technologies for Multilayered Scaffolds Suitable for Interface Tissue Engineering, ADVANCED ENGINEERING MATERIALS, Vol: 16, Pages: 319-327, ISSN: 1438-1656
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- Citations: 40
Hoppe A, Jokic B, Janackovic D, et al., 2014, Cobalt-Releasing 1393 Bioactive Glass-Derived Scaffolds for Bone Tissue Engineering Applications, ACS APPLIED MATERIALS & INTERFACES, Vol: 6, Pages: 2865-2877, ISSN: 1944-8244
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- Citations: 78
Li W, Boccaccini AR, 2014, Bioactive glasses: Traditional and prospective applications in healthcare, Hot Topics in Biomaterials, Pages: 56-68, ISBN: 9781909453715
Bioactive glasses attract great interest for a variety of healthcare applications due to their versatile properties.
Fiedler T, Fisher M, Roether JA, et al., 2014, Strengthening mechanism of PDLLA coated titania foam, MECHANICS OF MATERIALS, Vol: 69, Pages: 35-40, ISSN: 0167-6636
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- Citations: 6
Li W, Nooeaid P, Roether JA, et al., 2014, Preparation and characterization of vancomycin releasing PHBV coated 45S5 Bioglass®-based glass ceramic scaffolds for bone tissue engineering, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 34, Pages: 505-514, ISSN: 0955-2219
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- Citations: 82
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