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Author: Wisanu Boonrawd Publisher: ISBN: Category : Biomedical engineering Languages : en Pages : 104
Book Description
Electrolytic plasma processing (EPP) can be operated in two modes, namely plasma electrolytic saturation (PES) and plasma electrolytic oxidation (PEO). In this study, the PES was used to create hydrophilic surface profiles on titanium (Ti). The wettability, surface morphology characteristics and chemical composition of the treated samples were studi650ed as a function of PES processing parameters. The PES profiled surfaces comprised of a characteristic "hills and valleys" morphology because of continuous surface melting and freezing cycles. A bimodal surface profile was produced with 2-3 μm height hills and valleys with nano-roughness (≤ 200 nm). The produced profile resulted in a significant contact angle decrease (from 38.7° to 5.4°). Ratios of actual surface area to projection area (r) and fraction of solid surface remaining dry (j) were obtained from profilometry. The surface characteristics and large r values produced by PES were able to induce hemi-wicking. Hence, PES produced superhydrophilic surfaces on Ti. The bioactivity of PES treated Ti was evaluated using cell free and MC3T3 cells in-vitro studies. The treatedi surface significantly increased the bioactivity and formed stoichiometric hydroxyapatite after immersion in a bone cell culture medium for 21 days. Cells' attachment and proliferation studies indicated that PES treated surface significantly enhances the cells' adhesion and growth after 24 and 48 hr compared to the untreated surface. The results show that Ti surface profiling by PES constitutes a promising method to potentially improve bone implant bonding. PEO was used to produce titanium oxide (TiO2) coatings on Ti surface in potassium -phosphate electrolyte. The morphology, wettability, phase, and chemical compositions were studied as a function of processing parameters. The bioactivity of the coating was assessed by the ability to form biomimetic apatite in-vitro using cell culture medium. In-vitro studies using human mesenchymal stem cells were also conducted to evaluate cells' proliferation and viability of the treated Ti. The results revealed that the produced TiO2 coatings comprised pore features with the pore size increasing with applied current density and treatment duration due to high energy discharge channels at higher potential. The PEO treated Ti exhibited superhydrophilic characteristics with a contact angle
Author: Wisanu Boonrawd Publisher: ISBN: Category : Biomedical engineering Languages : en Pages : 104
Book Description
Electrolytic plasma processing (EPP) can be operated in two modes, namely plasma electrolytic saturation (PES) and plasma electrolytic oxidation (PEO). In this study, the PES was used to create hydrophilic surface profiles on titanium (Ti). The wettability, surface morphology characteristics and chemical composition of the treated samples were studi650ed as a function of PES processing parameters. The PES profiled surfaces comprised of a characteristic "hills and valleys" morphology because of continuous surface melting and freezing cycles. A bimodal surface profile was produced with 2-3 μm height hills and valleys with nano-roughness (≤ 200 nm). The produced profile resulted in a significant contact angle decrease (from 38.7° to 5.4°). Ratios of actual surface area to projection area (r) and fraction of solid surface remaining dry (j) were obtained from profilometry. The surface characteristics and large r values produced by PES were able to induce hemi-wicking. Hence, PES produced superhydrophilic surfaces on Ti. The bioactivity of PES treated Ti was evaluated using cell free and MC3T3 cells in-vitro studies. The treatedi surface significantly increased the bioactivity and formed stoichiometric hydroxyapatite after immersion in a bone cell culture medium for 21 days. Cells' attachment and proliferation studies indicated that PES treated surface significantly enhances the cells' adhesion and growth after 24 and 48 hr compared to the untreated surface. The results show that Ti surface profiling by PES constitutes a promising method to potentially improve bone implant bonding. PEO was used to produce titanium oxide (TiO2) coatings on Ti surface in potassium -phosphate electrolyte. The morphology, wettability, phase, and chemical compositions were studied as a function of processing parameters. The bioactivity of the coating was assessed by the ability to form biomimetic apatite in-vitro using cell culture medium. In-vitro studies using human mesenchymal stem cells were also conducted to evaluate cells' proliferation and viability of the treated Ti. The results revealed that the produced TiO2 coatings comprised pore features with the pore size increasing with applied current density and treatment duration due to high energy discharge channels at higher potential. The PEO treated Ti exhibited superhydrophilic characteristics with a contact angle
Author: Marta Mohedano Publisher: MDPI ISBN: 3036505520 Category : Science Languages : en Pages : 172
Book Description
Plasma electrolytic oxidation (PEO), also known as micro-arc oxidation (MAO), functionalizes surfaces, improving the mechanical, thermal, and corrosion performance of metallic substrates, along with other tailored properties (e.g., biocompatibility, catalysis, antibacterial response, self-lubrication, etc.). The extensive field of applications of this technique ranges from structural components, in particular, in the transport sector, to more advanced fields, such as bioengineering. The present Special Issue covers the latest advances in PEO‐coated light alloys for structural (Al, Mg) and biomedical applications (Ti, Mg), with 10 research papers and 1 review from leading research groups around the world.
Author: Yoshiki Oshida Publisher: Momentum Press ISBN: 1606506285 Category : Technology & Engineering Languages : en Pages : 251
Book Description
This new book synthesizes a wide range of interdisciplinary literature to provide the state-of-the art of biomedical implants. It discusses materials and explains the three basic requirements for implant success from a surface engineering perspective: biological compatibility, biomechanical compatibility, morphological compatibility. Biomedical, mechanical, and materials engineers will find this book indispensable for understanding proper treatment of implant surfaces in order to achieve clinical success. Highlights include: • Coverage of surface engineering of polymer, metallic, ceramic and composite implant materials; • Coverage of chemical, mechanical, physical, thermal, and combined surface modification technologies; • Explanations of interfacial reaction between vital tissue and non-vital implant surface; and • Methodologies and technologies for modification of surface layer/zone to promote the osteo-integration, the ultimate success for biomedical implants in both dental and medical practice.
Author: Publisher: Academic Press ISBN: 0123983274 Category : Science Languages : en Pages : 404
Book Description
Progress in Molecular Biology and Translational Science provides a forum for discussion of new discoveries, approaches, and ideas in molecular biology. It contains contributions from leaders in their fields and abundant references. Volume 126 features in-depth reviews that focus on the tools required to investigate mechanotransduction. Additional chapters focus on how we can use these tools to answer fundamental questions about the interaction of physical forces with cell biology, morphogenesis, and function of mature structures. Chapters in the volume are authored by a unique combination of cell biologists and engineers, providing a range of perspectives on mechanotransduction. Provides a unique combination of perspectives from biologists and engineers Engaging to people of many training backgrounds
Author: Muhammad Sohail Zafar Publisher: Woodhead Publishing ISBN: 0128196270 Category : Medical Languages : en Pages : 324
Book Description
Dental Implants: Materials, Coatings, Surface Modifications and Interfaces with Oral Tissues provides readers with information on past and contemporary advances in the design and modification of dental implants to enhance osseointegration and biocompatibility. The book begins with a look at the current status of dental implants, materials and fabrication methods. Chapters then cover surface modification techniques and a variety of inorganic, organic and biological coatings. Final sections cover tissue-implant interfaces. Written by a multidisciplinary team of materials scientists, dental clinicians and implantologists, this book is an essential reference for materials scientists, dental practitioners and researchers and students in academia. Covers all aspects related to dental implants, including implant materials science, their fabrication, surface coatings and their clinical applications Provides detailed information on surface modification on surfaces coated with inorganic, organic and biological materials Discusses the modification of dental implants, including implant-bone interaction enhanced by coatings on dental implant surfaces Written by a multidisciplinary team of materials scientists, dental clinicians and Implantologists
Author: T.S.N. Sankara Narayanan Publisher: Elsevier ISBN: 1782420827 Category : Technology & Engineering Languages : en Pages : 381
Book Description
Surface modification of magnesium and its alloys for biomedical applications: Biological interactions, mechanical properties and testing, the first of two volumes, is an essential guide on the use of magnesium as a degradable implant material. Due to their excellent biocompatibility and biodegradability, magnesium based degradable implants provide a viable option for the permanent metallic implants. This volume focuses on the fundamental concepts of surface modification of magnesium, its biological interactions, mechanical properties and, in vitro and in vivo testing. The contents of volume 1 is organized and presented in three parts. Part 1 reviews the fundamental aspects of surface modification of magnesium, including surface design, opportunities, challenges and its role in revolutionizing biodegradable biomaterials. Part 2 addresses the biological and mechanical properties covering an in vivo approach to the bioabsorbable behavior of magnesium alloys, mechanical integrity and, the effects of amino acids and proteins on the performance of surface modified magnesium. Part 3 delves in to testing and characterization, exploring the biocompatibility and effects on fatigue life alongside the primary characteristics of surface modified magnesium. All chapters are written by experts, this two volume series provides systematic and thorough coverage of all major modification technologies and coating types of magnesium and its alloys for biomedical applications. Expert analysis of the fundamentals in surface modification of magnesium and its alloys for biomedical applications Includes biological interactions and mechanical properties Focuses on testing and characterisation, as well as biocompatibility
Author: Ashwani Kumar Publisher: CRC Press ISBN: 1000581454 Category : Technology & Engineering Languages : en Pages : 370
Book Description
This book provides in-depth knowledge about cross rolling of biomedical alloys, cellulose, magnetic iron oxide nanoparticles, magnesium-based nanocomposites, titanium, titanium alloys, stainless steel, and improved biodegradable implants materials for biomechanical applications like joint replacements, bone plates, bone cement, artificial ligaments and tendons, dental implants for tooth fixation, and hip implants. It comprehensively covers advancements in materials including graphene-reinforced magnesium metal matrix, magnesium and its alloys, and 2D nanomaterials. The text discusses important topics including advanced materials for biomechanical applications, design, and analysis of stainless steel 316L for femur bone fracture healing, design and manufacturing of prosthetic dental implants, a biomechanical study of a low-cost prosthetic leg, and an energy harvesting mechanism for walking applications. The text will serve as a useful text for graduate students, academic researchers, and general practitioners in areas including materials science, manufacturing engineering, mechanical engineering, and biomechanical engineering.
Author: Janina Adamus Publisher: Trans Tech Publications Ltd ISBN: 3035702853 Category : Technology & Engineering Languages : en Pages : 276
Book Description
The proceedings of the 12th National Scientific Conference Ti-2015 contains 35 peer-reviewed articles from 16 Polish scientific centres which cover a wide range of basic and applied aspects of the research, modelling, processing and application of titanium and its alloys. The conference Titanium and its alloys is biannual national conference that has been held in Poland since 1990. It is an occasion to bring together scientists and practitioners, exchange their knowledge and experiences. The aim of the proceedings is to develop and promote the use of titanium in technology and medicine. The presented contributions cover these main topics: - Forming the structure and microstructure of titanium materials as well as their physical, chemical and mechanical properties - Surface engineering, advanced technologies of surface and thermo-plastic treatment
Author: Francis Froes Publisher: Woodhead Publishing ISBN: 0128124571 Category : Technology & Engineering Languages : en Pages : 656
Book Description
Titanium in Medical and Dental Applications is an essential reference book for those involved in biomedical materials and advanced metals. Written by well-known experts in the field, it covers a broad array of titanium uses, including implants, instruments, devices, the manufacturing processes used to create them, their properties, corrosion resistance and various fabrication approaches. Biomedical titanium materials are a critically important part of biomaterials, especially in cases where non-metallic biomedical materials are not suited to applications, such as the case of load-bearing implants. The book also covers the use of titanium for implants in the medical and dental fields and reviews the use of titanium for medical instruments and devices. Provides an understanding of the essential and broad applications of Titanium in both the medical and dental industries Discusses the pathways to manufacturing titanium into critical biomedical and dental devices Includes insights into further applications within the industry
Author: Wisanu Boonrawd
Author: Wisanu Boonrawd
Author: Marta Mohedano
Author: Deejay Mehta
Author: Yoshiki Oshida
Author: 
Author: Muhammad Sohail Zafar
Author: T.S.N. Sankara Narayanan
Author: Ashwani Kumar
Author: Janina Adamus
Author: Francis Froes