Extrusion Bioprinting Of Scaffolds For Tissue Engineering Applications

This book introduces readers to the theory and practice of extrusion bio-printing of scaffolds for tissue engineering applications. The author emphasizes the fundamentals and practical applications of extrusion bio-printing to scaffold fabrication, in a manner particularly suitable for those who wish to master the subject matter and apply it to real tissue engineering applications. Readers will learn to design, fabricate, and characterize tissue scaffolds to be created by means of extrusion bio-printing technology.

This volume provides an in-depth introduction to 3D printing and biofabrication and covers the recent advances in additive manufacturing for tissue engineering. The book is divided into two parts, the first part on 3D printing discusses conventional approaches in additive manufacturing aimed at fabrication of structures, which are seeded with cells in a subsequent step. The second part on biofabrication presents processes which integrate living cells into the fabrication process.

This book focuses on applications of three-dimensional (3D) printing in healthcare. It first describes a range of biomaterials, including their physicochemical and biological properties. It then reviews the current state of the art in bioprinting techniques and the potential application of bioprinting, computer-aided additive manufacturing of cells, tissues, and scaffolds to create organs in regenerative medicine. Further, it discusses the orthopedic applications of 3D printing in the design and fabrication of dental implants, and the use of 3D bioprinting in oral and maxillofacial surgery and in tissue and organ engineering. Lastly, the book examines the 3D printing technologies that are used for the fabrication of the drug delivery system. It also explores the current challenges and the future of 3D bioprinting in medical sciences, as well as the market demand.

Regenerative engineering is the convergence of developmental biology, stem cell science and engineering, materials science, and clinical translation to provide tissue patches or constructs for diseased or damaged organs. Various methods have been introduced to create tissue constructs with clinically relevant dimensions. Among such methods, 3D bioprinting provides the versatility, speed and control over location and dimensions of the deposited structures. Three-dimensional bioprinting has leveraged the momentum in printing and tissue engineering technologies and has emerged as a versatile method of fabricating tissue blocks and patches. The flexibility of the system lies in the fact that numerous biomaterials encapsulated with living cells can be printed. This book contains an extensive collection of papers by world-renowned experts in 3D bioprinting. In addition to providing entry-level knowledge about bioprinting, the authors delve into the latest advances in this technology. Furthermore, details are included about the different technologies used in bioprinting. In addition to the equipment for bioprinting, the book also describes the different biomaterials and cells used in these approaches. This text: Presents the principles and applications of bioprinting Discusses bioinks for 3D printing Explores applications of extrusion bioprinting, including past, present, and future challenges Includes discussion on 4D Bioprinting in terms of mechanisms and applications

Essentials of 3D Biofabrication and Translation discusses the techniques that are making bioprinting a viable alternative in regenerative medicine. The book runs the gamut of topics related to the subject, including hydrogels and polymers, nanotechnology, toxicity testing, and drug screening platforms, also introducing current applications in the cardiac, skeletal, and nervous systems, and organ construction. Leaders in clinical medicine and translational science provide a global perspective of the transformative nature of this field, including the use of cells, biomaterials, and macromolecules to create basic building blocks of tissues and organs, all of which are driving the field of biofabrication to transform regenerative medicine. Provides a new and versatile method to fabricating living tissue Discusses future applications for 3D bioprinting technologies, including use in the cardiac, skeletal, and nervous systems, and organ construction Describes current approaches and future challenges for translational science Runs the gamut of topics related to the subject, from hydrogels and polymers to nanotechnology, toxicity testing, and drug screening platforms

At labs around the world, researchers have been experimenting with bioprinting, first just to see whether it was possible to push cells through a printhead without killing them (in most cases it is), and then trying to make cartilage, bone, skin, blood vessels, small bits of liver and other tissues. There are other ways to try to “engineer” tissue — one involves creating a scaffold out of plastics or other materials and adding cells to it. In theory, at least, a bioprinter has advantages in manipulating control of the placement of cells and other components to mimic natural structures. But just as the claims made for 3-D printing technology sometimes exceed the reality, the field of bioprinting has seen its share of hype. The reality is that, although bioprinting researchers have made great strides, there are many formidable obstacles to overcome. Nobody who has any credibility claims they can print organs, or believes in their heart of hearts that that will happen in the next 20 years, but for operations like hip replacement, advance in Bio-printing has made customization of certain body parts possible. This book will start from the concept of Tissue Engineering, covering various approaches in Scaffolds for tissue engineering, Bioprinting techniques and Materials for bioprinting, Cell processing, 3D cell culture techniques, Computational design and simulation, multi-disciplinary approaches in bioprinting and finally cover the applications of bioprinting.

MECHANICAL ENGINEERING IN BIOMEDICAL APPLICATIONS The book explores the latest research and developments related to the interdisciplinary field of biomedical and mechanical engineering offering insights and perspectives on the research, key technologies, and mechanical engineering techniques used in biomedical applications. The book is divided into several sections that cover different aspects of mechanical engineering in biomedical research. The first section focuses on the role of additive manufacturing technologies, rehabilitation in healthcare applications, and artificial recreation of human organs. The section also covers the advances, risks, and challenges of bio 3D printing. The second section presents insight into biomaterials, including their properties, applications, and fabrication techniques. The section also covers the use of powder metallurgy methodology and techniques of biopolymer and bio-ceramic coatings on prosthetic implants. The third section covers biofluid mechanics, including the mechanics of fluid flow within our body, the mechanical aspects of human synovial fluids, and the design of medical devices for fluid flow applications. The section also covers the use of computational modeling to study the blockage of carotid arteries. The final section elaborates on soft robotic manipulation for use in medical sciences. Audience The book provides practical insights and applications for mechanical engineers, biomedical engineers, medical professionals, and researchers working on the design and development of biomedical devices and implants.

Three-dimensional (3D) printing enables the fabrication of tissue-engineered constructs and devices from a patient’s own medical data, leading to the creation of anatomically matched and patient-specific constructs. There is a growing interest in applying 3D printing technologies in the fields of tissue engineering and regenerative medicine. The main printing methods include extrusion-based, vat photopolymerization, droplet-based, and powder-based printing. A variety of materials have been used for printing, from metal alloys and ceramics to polymers and elastomers as well as from hydrogels to extracellular matrix proteins. More recently, bioprinting, a subcategory of 3D printing, has enabled the precise assembly of cell-laden biomaterials (i.e., bioinks) for the construction of complex 3D functional living tissues or artificial organs. In this Special Issue, we aim to capture state-of-the-art research papers and the most current review papers focusing on 3D printing for tissue engineering and regenerative medicine. In particular, we seek novel studies on the development of 3D printing and bioprinting approaches, developing printable materials (inks and bioinks), and utilizing 3D-printed scaffolds for tissue engineering and regenerative medicine applications. These applications are not limited to but include scaffolds for in vivo tissue regeneration and tissue analogues for in vitro disease modeling and/or drug screening.