Download or read book The Role of Silver Nanoparticles on Skin Wound Healing Tissue Remodeling and Their Potential Cytotoxicity written by 劉雪來 and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Silver Nanoparticles on Skin Wound Healing Tissue Remodeling and Their Potential Cytotoxicity written by Xuelai Liu and published by Open Dissertation Press. This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "The Role of Silver Nanoparticles on Skin Wound Healing, Tissue Remodeling and Their Potential Cytotoxicity" by Xuelai, Liu, 劉雪來, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: The advance of nanotechnology has made it possible that pure silver can be engineered into nano scale level with less than 100 nm in size. So far many studies have confirmed anti-bacterial and anti-inflammatory efficacy of silver nanoparticles (AgNPs). In our previous study we have revealed that AgNPs could promote wound healing through modulation of cytokines in a burn wound model in mice. Nonetheless, the exact effects mediated by AgNPs on various cell types in skin, including keratinocytes and fibroblasts, during wound healing still remain unknown. Therefore, in the present study we targeted a full-thickness excisional wound model in mice to explore the action and potential toxicity of AgNPs on keratinocytes and fibroblasts. Immunohistochemistry staining and molecular assay were conducted to explore AgNPs-induced re-epithelization and cell differentiation in both in vivo and in vitro studies. We next targeted the healed skin after AgNPs-mediated wound healing using tensile test to compare their mechanical function. Meanwhile, immunohistochemistry staining and quantitative assay were utilized to further investigate and compare collagen deposition, and scanning electron microscopy (SEM) was used to observe the morphology and distribution of collagen fibrils in healed skin. Moreover, AgNPs of different sizes and doses were studied to investigate the potential toxicity, their influence on cell migration, and extracellular matrix (ECM) production. Key results: 1. AgNPs could accelerate excisional wound healing in mouse skin when compared with other formats of silver. 2. AgNPs mediated differential cellular response in skin cells. They promoted proliferation and migration of keratinocytes in epidermal layer, through which the re-epithelization process during wound healing was enhanced; while proliferation of fibroblasts in dermal layer was inhibited and they were driven into the differentiation of myofibroblasts, through which wound contraction process was strengthened. 3. AgNPs could suppress the proliferation of human keloid fibroblasts and ECM production including collagen, fibronectin and heat shock protein, which would suggest that AgNPs had anti-fibrosis effect. 4. The AgNPs could stimulate the proliferation of epidermal progenitors and their differentiation into keratinocytes during wound healing. This biological event further contributed to the re-epithelization process. 5. AgNPs-mediated healed skin possessed comparable mechanical function, collagen deposition and fibril alignment to normal skin, which suggested AgNPs could modulate collagen production during skin wound healing. 6. The inhibitory effect on fibroblasts and cytotoxicity mediated by AgNPs showed a dose-dependent and size-dependent manner. In conclusion, AgNPs not only contribute to healing of infected skin wounds through antibacterial activity, but can also accelerate wound healing through mediating differential cellular responses in different skin cell types and modulate collagen production during wound healing. Furthermore, there should be an optimal concentration and size to exert maximal biological action with minimal toxicity for each specific cell type. Present studies further extended our knowledge of AgNPs and have implications for treatment of wounds in clinical setting. DOI: 10.5353/th_b5153695 Subject
Download or read book Silver Micro Nanoparticles written by Samir Kumar and published by BoD – Books on Demand. This book was released on 2021-09-15 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the different methodologies for producing and synthesizing silver nanoparticles (AgNPs) of various shapes and sizes. It also provides an in-depth understanding of the new methods for characterizing and modifying the properties of AgNPs as well as their properties and applications in various fields. This book is a useful resource for a wide range of readers, including scientists, engineers, doctoral and postdoctoral fellows, and scientific professionals working in specialized fields such as medicine, nanotechnology, spectroscopy, analytical chemistry diagnostics, and plasmonics.
Download or read book Therapeutic Dressings and Wound Healing Applications written by Joshua Boateng and published by John Wiley & Sons. This book was released on 2020-03-09 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest research on techniques for effective healing of chronic and difficult to heal wounds The healing of chronic wounds is a global medical concern, specifically for patients suffering from obesity and type II diabetes. Therapeutic Dressing and Wound Healing Applications is an essential text for research labs, industry professionals, and general clinical practitioners that want to make the shift towards advanced therapeutic dressing and groundbreaking wound application for better healing. This book takes a clinical and scientific approach to wound healing, and includes recent case studies to highlight key points and areas of improvement. It is divided into two key sections that include insight into the biochemical basis of wounds, as well as techniques and recent advancements. Chapters include information on: ● Debridement and disinfection properties of wound dressing ● Biofilms, silver nanoparticles, and honey dressings ● Clinical perspectives for treating diabetic wounds ● Treating mixed infections ● Wound healing and tissue regeneration treatments ● Gene based therapy, 3D bioprinting and freeze-dried wafers Anyone looking to update and improve the treatment of chronic wounds for patients will find the latest pertinent information in Therapeutic Dressing and Wound Healing Applications.
Download or read book Essentials in Nanoscience and Nanotechnology written by Narendra Kumar and published by John Wiley & Sons. This book was released on 2016-04-11 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes various aspects of nanoscience and nanotechnology. It begins with an introduction to nanoscience and nanotechnology and includes a historical prospective, nanotechnology working in nature, man -made nanomaterial and impact of nanotechnology illustrated with examples. It goes on to describes general synthetic approaches and strategies and also deals with the characterization of nanomaterial using modern tools and techniques to give basic understanding to those interested in learning this emerging area. It then deals with different kinds of nanomaterial such as inorganics, carbon based-, nanocomposites and self-assembled/supramolecular nano structures in terms of their varieties, synthesis, properties etc. In addition, it contains chapters devoted to unique properties with mathematical treatment wherever applicable and the novel applications dealing with information technology, pollution control (environment, water), energy, nanomedicine, healthcare, consumer goods etc.
Download or read book Silver Nano microparticles Modification and Applications written by Bong-Hyun Jun and published by MDPI. This book was released on 2019-07-26 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nano/micro-size particles are widely applied in various fields. Among the various particles, silver particles are considered among the most prominent nanomaterials in the biomedical and industrial sectors because of their favorable physical, chemical, and biological characteristics. Thus, numerous studies have been conducted to evaluate their properties and utilize them in various applications, such as diagnostics, anti-bacterial and anti-cancer therapeutics, and optoelectronics. The properties of silver particles are strongly influenced by their size, morphological shape, and surface characteristics, which can be modified by diverse synthetic methods, reducing agents, and stabilizers. This Special Issue provides a range of original contributions detailing the synthesis, modification, properties, and applications of silver materials. Nine outstanding papers describing examples of the most recent advances in silver nano/microparticles are included. Silver nano/micro-size particles have many potential advantages as next-generation materials in various areas, including nanomedicine. This Special Issue might be helpful to understand the value of silver particles in the biomedical and industrial fields
Download or read book Metal Nanoparticles written by Daniel L. Fedlheim and published by CRC Press. This book was released on 2001-10-26 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art reference, Metal Nanoparticles offers the latest research on the synthesis, characterization, and applications of nanoparticles. Following an introduction of structural, optical, electronic, and electrochemical properties of nanoparticles, the book elaborates on nanoclusters, hyper-Raleigh scattering, nanoarrays, and several applications including single electron devices, chemical sensors, biomolecule sensors, and DNA detection. The text emphasizes how size, shape, and surface chemistry affect particle performance throughout. Topics include synthesis and formation of nanoclusters, nanosphere lithography, modeling of nanoparticle optical properties, and biomolecule sensors.
Download or read book Nanocellulose and Nanohydrogel Matrices written by Mohammad Jawaid and published by John Wiley & Sons. This book was released on 2017-10-23 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first book on nanocellulose and nanohydrogels for biomedical applications is unique in discussing recent advancements in the field, resulting in a comprehensive, well-structured overview of nanocellulose and nanohydrogel materials based nanocomposites. The book covers different types of nanocellulose materials and their recent developments in the drug delivery and nanomedicine sector, along with synthesis, characterization, as well as applications in the biotechnological and biomedical fields. The book also covers the current status and future perspectives of bacterial cellulose and polyester hydrogel matrices, their preparation, characterization, and tissue engineering applications of water soluble hydrogel matrices obtained from biodegradable sources. In addition, the chitosan-based hydrogel and nanogel matrices, their involvement in the current biofabrication technologies, and influencing factors towards the biomedical sector of biosensors, biopharmaceuticals, tissue engineering appliances, implant materials, diagnostic probes and surgical aids are very well documented. Further, the history of cellulose-based and conducting polymer-based nanohydrogels, their classification, synthesis methods and applicability to different sectors, the challenges associated with their use, recent advances on the inhibitors of apoptosis proteins are also included. The recent developments and applications in the drug delivery sector gives an overview of facts about the nanofibrillated cellulose and copoly(amino acid) hydrogel matrices in the biotechnology and biomedicine field. This book serves as an essential reference for researchers and academics in chemistry, pharmacy, microbiology, materials science and biomedical engineering.
Download or read book Mechanisms of Vascular Disease written by Robert Fitridge and published by University of Adelaide Press. This book was released on 2011 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: New updated edition first published with Cambridge University Press. This new edition includes 29 chapters on topics as diverse as pathophysiology of atherosclerosis, vascular haemodynamics, haemostasis, thrombophilia and post-amputation pain syndromes.
Download or read book Silver Nanoparticles written by Khan Maaz and published by . This book was released on 2018-07 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced 3D Printed Systems and Nanosystems for Drug Delivery and Tissue Engineering written by Lisa C. du Toit and published by Elsevier. This book was released on 2020-03-08 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced 3D-Printed Systems and Nanosystems for Drug Delivery and Tissue Engineering explores the intricacies of nanostructures and 3D printed systems in terms of their design as drug delivery or tissue engineering devices, their further evaluations and diverse applications. The book highlights the most recent advances in both nanosystems and 3D-printed systems for both drug delivery and tissue engineering applications. It discusses the convergence of biofabrication with nanotechnology, constructing a directional customizable biomaterial arrangement for promoting tissue regeneration, combined with the potential for controlled bioactive delivery. These discussions provide a new viewpoint for both biomaterials scientists and pharmaceutical scientists. Shows how nanotechnology and 3D printing are being used to create systems which are intelligent, biomimetic and customizable to the patient Explores the current generation of nanostructured 3D printed medical devices Assesses the major challenges of using 3D printed nanosystems for the manufacture of new pharmaceuticals
Download or read book Metal Nanoparticles in Microbiology written by Mahendra Rai and published by Springer Science & Business Media. This book was released on 2011-04-02 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following an introduction to biogenic metal nanoparticles, this book presents how they can be biosynthesized using bacteria, fungi and yeast, as well as their potential applications in biomedicine. It is shown that the synthesis of nanoparticles using microbes is eco-friendly and results in reproducible metal nanoparticles of well-defined sizes, shapes and structures. This biotechnological approach based on the process of biomineralization exploits the effectiveness and flexibility of biological systems. Chapters include practical protocols for microbial synthesis of nanoparticles and microbial screening methods for isolating a specific nanoparticle producer as well as reviews on process optimization, industrial scale production, biomolecule-nanoparticle interactions, magnetosomes, silver nanoparticles and their numerous applications in medicine, and the application of gold nanoparticles in developing sensitive biosensors.
Download or read book Nanomaterials written by Simona Clichici and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Polysaccharides for Biomedical Applications written by Sabyasachi Maiti and published by Woodhead Publishing. This book was released on 2019-06-11 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional Polysaccharides for Biomedical Applications examines the fundamentals and properties of these natural materials and their potential biomedical applications. With an emphasis on therapeutic and sensing applications, the book also reviews how polysaccharides can be modified for tissue engineering applications. Sections discuss the basics of polysaccharides, give an overview of the potential applications, look at novel materials and technologies for use in tissue regeneration and therapeutics, and detail current biomedical applications. With a strong focus on materials, engineering and applications, this book is a valuable resource for those with an interest in harnessing the biomedical potential of natural polymers. Describes strategies for developing polysaccharides-based biomedical devices Illustrates concepts and encompasses scope for clinical development Provides advanced and comprehensive information on biomedical constructs
Download or read book Cutaneous Wounds written by F. Joseph Dagher and published by Blackwell/Futura. This book was released on 1985 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Healthcare Materials written by Ashutosh Tiwari and published by John Wiley & Sons. This book was released on 2014-05-09 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers a comprehensive and interdisciplinary view of cutting-edge research on advanced materials for healthcare technology and applications Advanced healthcare materials are attracting strong interest in fundamental as well as applied medical science and technology. This book summarizes the current state of knowledge in the field of advanced materials for functional therapeutics, point-of-care diagnostics, translational materials, and up-and-coming bioengineering devices. Advanced Healthcare Materials highlights the key features that enable the design of stimuli-responsive smart nanoparticles, novel biomaterials, and nano/micro devices for either diagnosis or therapy, or both, called theranostics. It also presents the latest advancements in healthcare materials and medical technology. The senior researchers from global knowledge centers have written topics including: State-of-the-art of biomaterials for human health Micro- and nanoparticles and their application in biosensors The role of immunoassays Stimuli-responsive smart nanoparticles Diagnosis and treatment of cancer Advanced materials for biomedical application and drug delivery Nanoparticles for diagnosis and/or treatment of Alzheimers disease Hierarchical modelling of elastic behavior of human dental tissue Biodegradable porous hydrogels Hydrogels in tissue engineering, drug delivery, and wound care Modified natural zeolites Supramolecular hydrogels based on cyclodextrin poly(pseudo)rotaxane Polyhydroxyalkanoate-based biomaterials Biomimetic molecularly imprinted polymers
Download or read book Advanced Textiles for Wound Care written by S. Rajendran and published by Elsevier. This book was released on 2009-04-30 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important and growing area of the textile industry is the medical sector. The extent of this growth is due to constant improvements in both textile technology and medical procedures. This collection provides a detailed review of how textiles are incorporated into wound care applications, explaining the importance and suitability of using textiles on different wound types. Part one of the book provides an overview of the use of textiles in particular aspects of wound care, providing details of wound management and the importance of laboratory testing in relation to wound care. Further chapters cover minor wounds, moist wound management and bioactive dressings to promote healing. Given their increasing importance, part two describes how advanced textiles, such as smart temperature controlled textiles and composites, can be used for wound care products. The final chapter gives an interesting insight into the use of fibrous scaffolds for tissue engineering. Advanced textiles for wound care is essential reading for any manufacturers, designers, scientists and producers of wound care materials. It is a valuable resource for professionals within the medical sector, as well as those in academia. Provides a comprehensive introduction to wound care from types of wound and wound healing mechanisms to the importance of testing in relation to wound care Analyses the application of textiles to wound healing covering minor wounds, burns, ulcers and other deep skin wounds Reviews the current use of smart textiles for wound care including drug delivery dressings and textile-based scaffolds for tissue engineering as well as future trends
