Download or read book New Synthetic Routes Towards Phosphate Glasses written by Carla Cavalca de Araujo and published by . This book was released on 2006 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation Into Different Phosphate Glass Processing Routes and the Role of Phosphate Glass in Dental Collagen based Scaffolds written by Vincenzo Farano and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis concerns the development of a new series of Sr-doped phosphate-based glasses for biomedical applications. Such glasses in powder form are envisaged to have applications in novel composite restorations where the following is achievable: dentin cell-mediated bioremineralization, dental pulp regeneration and as carrier for therapeutics or antibacterial ions.The initial aim was to produce soluble porous phosphate glasses using the sol-gel method (phosphate-alkoxide based sol-gel process). Knowing the effect that the variation of Ca content has on the dissolution properties of the glass, a series of glasses where Ca was progressively increased at the expense of Na was produced. The structure of the prepared samples was probed by XRD, XRF and FTIR to confirm the successful synthesis of the target phosphate-based glass compositions. After that a promising methodology was established, attempts were made to replace Ca with Sr. Different Sr sources were used without success due to the difficulty to fully dissolve those precursors in the sol-gel mixture. Subsequently, the issue of the toxicity of some precursors and solvents used in the sol-gel procedure was recognised. To overcome this obstacle, efforts were made to replace the toxic precursor chemicals with safer ones. Nevertheless, due to the low solubility of some new precursors and the low reactivity of others, the sol-gel process did not proceed in a predictable and reproducible fashion. At this stage, the sol-gel route was put aside, and two alternative soft and water-based chemical approaches were experimented: the precipitation method and the coacervation process. The first one was found to be unsuitable for our needs for two main reasons: 1) the presence of Na in the composition generated a crystalline material (instead of a glassy amorphous one); 2) the Ca/P ratio of our composition fell in the range of crystalline phase by using this method. In addition, the yield was really low. The second method (coacervation process) was a complete success. The glassy nature of the materials obtained was proved by XRD and XRF and the surface features were tested by BET and SEM. The process was retained for a while as the preferred synthesis route and both the scale-up effect and the possibility to add Sr were analysed. The production scale of the material was increased by 5 times and different Sr sources were tested to find the best one. XRD and XRF analysis proved both the success of the scale-up and the incorporation of the Sr in glass composition.
Download or read book Phosphate and Borate Bioactive Glasses written by Akiko Obata and published by Royal Society of Chemistry. This book was released on 2022-05-04 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic glasses are successfully used in the biomedical field, in particular degradable glasses have found applications in tissue engineering, bone regeneration and tooth remineralisation. Silicate glasses are the most commonly used ones but phosphate and borate glasses are attracting more and more interest owing to their special properties, differing from those of silicate bio-glasses. Phosphate and borate glasses thus open up potential routes for new therapeutic applications. This book focuses on these emerging materials. Bridging the phosphate and borate glasses communities, this book provides a fundamental treatment of atomic structure and physicochemical properties before highlighting their current and potential future applications. Phosphate and borate glasses not only feature a broader range of glass formation than silicate glasses. Their ability to completely dissolve in water with the solubility varying over orders of magnitude with compositional changes, makes them exciting materials for delivering therapeutic agents into the human body. Biomaterials scientists working in glasses, hard tissue engineering and regenerative medicine will find this a must-have book to own, alongside their more traditional silicate glass tomes.
Download or read book Phosphate and Borate Bioactive Glasses written by Akiko Obata and published by Royal Society of Chemistry. This book was released on 2022-05-04 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic glasses are successfully used in the biomedical field, in particular degradable glasses have found applications in tissue engineering, bone regeneration and tooth remineralisation. Silicate glasses are the most commonly used ones but phosphate and borate glasses are attracting more and more interest owing to their special properties, differing from those of silicate bio-glasses. Phosphate and borate glasses thus open up potential routes for new therapeutic applications. This book focuses on these emerging materials. Bridging the phosphate and borate glasses communities, this book provides a fundamental treatment of atomic structure and physicochemical properties before highlighting their current and potential future applications. Phosphate and borate glasses not only feature a broader range of glass formation than silicate glasses. Their ability to completely dissolve in water with the solubility varying over orders of magnitude with compositional changes, makes them exciting materials for delivering therapeutic agents into the human body. Biomaterials scientists working in glasses, hard tissue engineering and regenerative medicine will find this a must-have book to own, alongside their more traditional silicate glass tomes.
Download or read book ZnSe Ceramics and Phosphate Glasses for Optical Applications in the Visible and Infrared Ranges written by Gang Zhou and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A two-part study was conducted on the preparation and characterization of ZnSe ceramic and phosphate glasses for optical applications in the visible and infrared range. To prepare ZnSe powders, two synthetic routes were used: i) hydrothermal; ii) ball milling. The size and morphology of synthesized powders were analyzed using different techniques (XRD, SEM...). Then two sintering technologies, hot pressing (HP) sintering and spark plasma sintering (SPS) sintering have been implemented to obtain optically transparent ZnSe bulk samples. The best transmission obtained in the mid-infrared range, using HP and SPS, is greater than 50% and 40% respectively. To synthesize phosphate glasses with a high chemical durability, cations with high field strength such as Nb5+ and Ti4+ were incorporated into a phosphate matrix. The transparency in the visible range was obtained using small amounts of oxidation agents such as sulfates or nitrates. The use of diffuse reflectance spectroscopy led to determination of the chromaticity coordinates to evaluate the benefit of these additions.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book Advanced Glasses Composites and Ceramics for High Growth Industries written by Milena Salvo and published by MDPI. This book was released on 2019-05-24 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: ‘Advanced Glasses, Composites and Ceramics for High-Growth Industries’ (CoACH) was a European Training Network (ETN) project (http://www.coach-etn.eu/) funded by the Horizon 2020 program. CoACH involved multiple actors in the innovation ecosystem for advanced materials, composed of five universities and ten enterprises in seven different European countries. The project studied the next generation of materials that could bring innovation in the healthcare, construction, and energy sectors, among others, from new bioactive glasses for bone implants to eco-friendly cements and new environmentally friendly thermoelectrics for energy conversion. The novel materials developed in the CoACH project pave the way for innovative products, improved cost competitiveness, and positive environmental impact. The present Special Issue contains 14 papers resulting from the CoACH project, showcasing the breadth of materials and processes developed during the project.
Download or read book Synthesis and Elastic Characterization of Binary Lead Phosphate Glasses written by Yee San Low and published by . This book was released on 1997 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2007 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Sol Gel Science and Technology written by Lisa Klein and published by Springer Nature. This book was released on 2018-05-31 with total page 3755 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely updated and expanded second edition stands as a comprehensive knowledgebase on both the fundamentals and applications of this important materials processing method. The diverse, international team of contributing authors of this reference clarify in extensive detail properties and applications of sol-gel science and technology as it pertains to the production of substances, active and non-active, including optical, electronic, chemical, sensor, bio- and structural materials. Essential to a wide range of manufacturing industries, the compilation divides into the three complementary sections: Sol-Gel Processing, devoted to general aspects of processing and recently developed materials such as organic-inorganic hybrids, photonic crystals, ferroelectric coatings, and photocatalysts; Characterization of Sol-Gel Materials and Products, presenting contributions that highlight the notion that useful materials are only produced when characterization is tied to processing, such as determination of structure by NMR, in-situ characterization of the sol-gel reaction process, determination of microstructure of oxide gels, characterization of porous structure of gels by the surface measurements, and characterization of organic-inorganic hybrid; and Applications of Sol-Gel Technology, covering applications such as the sol-gel method used in processing of bulk silica glasses, bulk porous gels prepared by sol-gel method, application of sol-gel method to fabrication of glass and ceramic fibers, reflective and antireflective coating films, application of sol-gel method to formation of photocatalytic coating films, and application of sol-gel method to bioactive coating films. The comprehensive scope and integrated treatment of topics make this reference volume ideal for R&D scientists and engineers across a wide range of disciplines and professional interests.
Download or read book Nanoceramics in Clinical Use written by María Vallet-Regí and published by Royal Society of Chemistry. This book was released on 2016 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive overview of the field of nanoceramics for biomedical applications, from fundamental principles to latest advances.
Download or read book Metal Phosphates and Phosphonates written by Ram K. Gupta and published by Springer Nature. This book was released on 2023-03-29 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides fundamental electrochemical behavior and understanding of devices based on Metal Phosphates and Phosphonates. The basic concepts, properties and emerging applications of these materials as batteries, supercapacitors, fuel cells, sensors, biomedical and environmental are covered. Apart from conventional techniques, this book explores new aspects of synthesizing Metal Phosphates and Phosphonates.
Download or read book Phosphorus Acids Advances in Research and Application 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus Acids: Advances in Research and Application: 2011 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about Phosphorus Acids in a concise format. The editors have built Phosphorus Acids: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Phosphorus Acids in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Phosphorus Acids: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Biomimetic Nanoceramics in Clinical Use written by Maria Vallet-Regí and published by Royal Society of Chemistry. This book was released on 2008 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book on bioactive nanoceramics to unite the many multidisciplinary concepts useful for those working in bioceramics today.
Download or read book Functionalized Inorganic Fluorides written by Alain Tressaud and published by John Wiley & Sons. This book was released on 2010-04-09 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functionalized Inorganic Fluorides: Synthesis, Characterization & Properties of Nanostructured Solids covers several classes of nanostructured and functionalized inorganic fluorides, oxide-fluorides, and fluorinated oxides such as silica and alumina. Ranging from powders or glass-ceramics to thin layers and coatings, they have applications as more efficient and less aggressive catalysts, UV absorbers, planar optical waveguides, integrated lasers and optical amplifiers, luminescent materials, anti-reflective coatings and high Tc superconductors. With a focus on new types of solids, such as nanopowders, hybrids, mesoporous fluorides, and intercalation compounds, the book covers new synthesis routes; physical-chemical characterizations - including morphology, structure, spectroscopic and optical behaviour; detailed ab initio investigations and simulations; and -last but not least- potential applications.
Download or read book Biomaterials Science written by Buddy D. Ratner and published by Academic Press. This book was released on 2004-07-29 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Biomaterials Science leads the field by providing a balanced, insightful view of biomaterials. Contributions from pre-eminent researchers and practitioners from diverse academic and professional backgrounds have been integrated into a cohesive curriculum which includes pertinent principles of cell biology, immunology and pathology focusing on the clinical uses of biomaterials as components of implants, devices, and artificial organs, and their uses in biotechnology. The materials science and engineering of synthetic and natural biomaterials and the characterization of their physical, chemical, biochemical and surface properties, and mechanisms and evaluation of interactions with tissue, are also addressed in detail. Book jacket.
Download or read book An Introduction to Biomaterials written by Jeffrey O. Hollinger and published by CRC Press. This book was released on 2011-11-28 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical road map to the key families of biomaterials and their potential applications in clinical therapeutics, Introduction to Biomaterials, Second Edition follows the entire path of development from theory to lab to practical application. It highlights new biocompatibility issues, metrics, and statistics as well as new legislation for intelle
