Fabrication And Characterization Of Small Diameter Vascular Grafts For Vascular Tissue Engineering
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Fabrication And Characterization Of Small Diameter Vascular Grafts For Vascular Tissue Engineering
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Author : Emily Yu
language : en
Publisher:
Release Date : 2016
Fabrication And Characterization Of Small Diameter Vascular Grafts For Vascular Tissue Engineering written by Emily Yu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The demand for small-diameter blood vessel substitutes has been increasing due to a shortage of autograft vessels and problems with thrombosis and intimal hyperplasia with synthetic grafts. To design a feasible vascular graft, biocompatibility and comparable mechanical behaviors to natural tissues are two essential requirements. In this study, various types of small-diameter vascular grafts made of natural silk fibroin and synthetic polymers, including thermoplastic polyurethane (TPU) and poly-L-lactide (PLLA), by braiding and electrospinning techniques will be introduced. Market-available degummed silk fibroin yarns were incorporated in a braiding and coating process with a lab-extracted fibroin solution to produce vascular grafts with adjustable mechanical properties. By altering the braiding and winding patterns and the type of yarn, braided fibroin tubes were able to reach artery-like mechanical performance. Natural silk fibroin possesses the characteristics of biocompatibility, low- or non-immunogenicity, relatively slow proteolytic degradation, robust mechanical properties, and low thrombogenicity that make it a promising material for vascular engineering. Two types of customized collectors have been developed for the electrospinning process to fabricate vascular grafts that mimic the structure of elastic layers and collagen fibers in natural blood vessels. The materials used here were blends of natural fibroin and synthetic polymers at different ratios to leverage their bioactivity and tunable mechanical properties. The first type of collector was a striated collector with grooves and ridges that created the continuous aligned-random fibrous sheet for producing tubular grafts with alternating aligned- and randomly-oriented layers. The other collector was an assembled rotating collector for generating grafts with circumferentially-aligned wavy fibers due to the dynamic "jumping rope" collecting process. Electrospun fibers were collected by a mandrel with changeable diameters during and after the electrospinning process to generate a continuous wavy-flat alternating structure in the circumferential direction. Small-diameter vascular grafts fabricated in this study exhibited similar mechanical behaviors to natural blood vessels. Vascular cell culture tests verified the ability of lab-extracted fibroin in promoting cell activities and the feasibility of commodity-grade degummed silk yarns in medical applications after sufficient cleaning. Cell responses on fibroin/TPU electrospun grafts also presented positive results with high cell viability, adhesion, and migration
Tissue Engineered Vascular Grafts
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Author : Beat H. Walpoth
language : en
Publisher: Springer
Release Date : 2020-08-21
Tissue Engineered Vascular Grafts written by Beat H. Walpoth and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-08-21 with Science categories.
Cardiovascular diseases are still the leading cause of death in developed countries. Revascularization procedures such as coronary artery and peripheral bypass grafts, as well as access surgery represent a 2$ billion market yearly for the US alone. Despite intense research over many decades, no clinically suitable, shelf-ready, synthetic, vascular, small-caliber graft exists. There is therefore still a quest for such a clinical vascular prosthesis for surgical revascularization procedures and access surgery. Many approaches have been tried and are currently under investigation with promising results. These range from acellular and cell-based, stable or bio-degradable, synthetic scaffolds to biological or decellularized grafts, not forgetting self-assembly technologies for in vitro or in vivo VTE. All these approaches can be further enhanced by functionalization, e.g. with growth factors and drug elution. This updatable book aims to cover all the relevant aspects of Vascular Tissue Engineering (VTE) and novel alternatives to develop vascular grafts for clinical applications. The chapters in this book cover different aspects of manufacturing scaffolds with various polymers, mechanical characteristics, degradation rates, decellularization techniques, cell sheet assembly, 3-D printing and autologous mandril-based VTE. All the necessary in vitro tests such as biocompatibility and thrombogenicity are reviewed. Pre-clinical assessment of in vivo experimental models include patency, compliance, intimal hyperplasia, inflammatory reaction, cellular ingrowth and remodeling. Finally, early clinical trials will be periodically updated regarding results, regulatory aspects and post-marketing quality assessment. Furthermore, the reader should get an insight into various approaches, technologies and methods to better understand the complexity of blood surface and cell interactions in VTE. Translational research has yielded early human applications clearly showing the enormous need of research in the field to provide better solutions for our patients and this continuously updated book will hopefully become a reference in the field for life sciences.
Advances In Polyurethane Biomaterials
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Author : Stuart L. Cooper
language : en
Publisher: Woodhead Publishing
Release Date : 2016-01-23
Advances In Polyurethane Biomaterials written by Stuart L. Cooper and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-01-23 with Medical categories.
Advances in Polyurethane Biomaterials brings together a thorough review of advances in the properties and applications of polyurethanes for biomedical applications. The first set of chapters in the book provides an important overview of the fundamentals of this material with chapters on properties and processing methods for polyurethane. Further sections cover significant uses such as their tissue engineering and vascular and drug delivery applications Written by an international team of leading authors, the book is a comprehensive and essential reference on this important biomaterial. Brings together in-depth coverage of an important material, essential for many advanced biomedical applications Connects the fundamentals of polyurethanes with state-of-the-art analysis of significant new applications, including tissue engineering and drug delivery Written by a team of highly knowledgeable authors with a range of professional and academic experience, overseen by an editor who is a leading expert in the field
Vascular Tissue Engineering
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Author : Feng Zhao
language : en
Publisher: Humana
Release Date : 2021-10-01
Vascular Tissue Engineering written by Feng Zhao and has been published by Humana this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-01 with Science categories.
This volume explores the latest techniques used to study the field of tissue engineered vascular grafts (TEVGs). The chapters in this book cover a wide array of topics such as deriving vascular cells from monocytes and induced pluripotent stem cells; engineering vascular grafts using various biomaterials and stem cells, stem cell-derived, or primary vascular cells; biomaterial modification by anticoagulation molecules; vascular bioengineering technologies such as 3D bioprinting; and fabrication of TEVGs with different geometry and multiphase structures. This book also features protocols for grafting and evaluation of vascular grafts in animal models, vascular imaging in animals, and the quantification of blood vessel permeability. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and practical, Vascular Tissue Engineering: Methods and Protocols is a valuable resource for biomedical engineers, cell biologists, vascular surgeons, doctors, and nurses.
Molecular Mechanism Of Congenital Heart Disease And Pulmonary Hypertension
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Author : Toshio Nakanishi
language : en
Publisher: Springer Nature
Release Date : 2020-02-28
Molecular Mechanism Of Congenital Heart Disease And Pulmonary Hypertension written by Toshio Nakanishi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-28 with Medical categories.
This open access book focuses on the molecular mechanism of congenital heart disease and pulmonary hypertension, offering new insights into the development of pulmonary circulation and the ductus arteriosus. It describes in detail the molecular mechanisms involved in the development and morphogenesis of the heart, lungs and ductus arteriosus, covering a range of topics such as gene functions, growth factors, transcription factors and cellular interactions, as well as stem cell engineering technologies. The book also presents recent advances in our understanding of the molecular mechanism of lung development, pulmonary hypertension and molecular regulation of the ductus arteriosus. As such, it is an ideal resource for physicians, scientists and investigators interested in the latest findings on the origins of congenital heart disease and potential future therapies involving pulmonary circulation/hypertension and the ductus arteriosus.
Decellularized Extracellular Matrix
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Author : Takashi Hoshiba
language : en
Publisher: Royal Society of Chemistry
Release Date : 2019-12-05
Decellularized Extracellular Matrix written by Takashi Hoshiba and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-05 with Science categories.
Using this book, the reader will gain a good foundation to the field complemented with a broad overview of characterisation, microfabrication and applications.
Vascular Engineering
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Author : Kazuo Tanishita
language : en
Publisher: Springer
Release Date : 2016-03-17
Vascular Engineering written by Kazuo Tanishita and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-17 with Medical categories.
This book describes the fundamental biology and mechanics of the vasculature and examines how this knowledge has underpinned the development of new clinical modalities, including endovascular treatment and vascularization of reconstructed tissue for regenerative medicine. Vascular engineering is a multidisciplinary field integrating vascular biology, hemodynamics, biomechanics, tissue engineering, and medicine. Each chapter offers insights into the dynamics of the circulatory system and explains how the impact of related disease conditions — atherosclerosis, hypertension, myocardial ischemia, and cerebral infarction — has generated a focus on developing expertise to both maintain and treat the vascular system. As a comprehensive book in this expanding area, Vascular Engineering serves as a valuable resource for clinicians as well as academics and professionals working in biophysics, biomedical engineering, and nano and microrheology. Graduate students in these subject areas will also find this volume insightful.
Polymeric Biomaterials For Tissue Regeneration
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Author : Changyou Gao
language : en
Publisher: Springer
Release Date : 2016-10-08
Polymeric Biomaterials For Tissue Regeneration written by Changyou Gao and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-08 with Medical categories.
This book reviews state-of-the-art of polymeric biomaterials for regenerative medicine, and highlights advances in both basic science and clinical practice. It summarizes the latest techniques in polymeric scaffold fabrication, delivery carriers, physicochemical property modulation, as well as their influence on adhesion and the performance of biomolecules, cells and tissues. It also describes methods for creating biofunctional surfaces/interfaces and subsequently modulating the host response to implantable materials. Lastly, it discusses the applications of biomaterials and constructs in soft-tissue regenerative medicine. It is a valuable resource for materials scientists and engineers wishing to identify research priorities to fulfill clinical needs and provides physicians with insights into emerging novel biomaterials. This integrated approach also offers engineering students a sense of the relevance of materials science in the development of novel therapeutic strategies.
Bone Tissue Engineering
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Author : Jeffrey O. Hollinger
language : en
Publisher: CRC Press
Release Date : 2004-10-14
Bone Tissue Engineering written by Jeffrey O. Hollinger and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-10-14 with Medical categories.
Focusing on bone biology, Bone Tissue Engineering integrates basic sciences with tissue engineering. It includes contributions from world-renowned researchers and clinicians who discuss key topics such as different models and approaches to bone tissue engineering, as well as exciting clinical applications for patients. Divided into four sections, t
Electrospun Materials And Their Allied Applications
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Author : Inamuddin
language : en
Publisher: John Wiley & Sons
Release Date : 2020-05-27
Electrospun Materials And Their Allied Applications written by Inamuddin and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-27 with Technology & Engineering categories.
The aim of this book is to explore the history, fundamentals, manufacturing processes, optimization parameters, and applications of electrospun materials. The book includes various types of electrospun materials such as antimicrobial, smart, bioinspired systems. It focuses on the many application areas for electrospun materials such as energy storage and harvesting, catalysis, biomedical including gene delivery and tissue engineering, separation, adsorption and water treatment technologies, packaging. The book emphasizes the enhanced sustainable properties of electrospun materials, with the challenges and future developments being discussed in detail. The chapters are written by top-class researchers and experts from throughout the world.