Smart Biomaterial Devices

Polymers have emerged as one of the most innovative classes of materials in modern materials science, leading to new applications in medicine and pharmacy. This book offers a convincing and understandable approach to polymer biomaterial devices being used in various areas related to biomedical and pharmaceutical fields. The polymer materials finding application as biomaterials are discussed and described in detail pertaining to the areas of artificial implants, orthopedics, ocular devices, dental implants, drug delivery systems, burns and wounds.

This book provides comprehensive coverage of smart biomaterials and their potential applications, a field that is developing at a very rapid pace. Because smart biomaterials are an emerging class of biomaterials that respond to small changes in external stimuli with large discontinuous changes in their physical properties, they have been designed to act as an “on–off” switch for, among others, bio separation, immunoanalysis, drug delivery technologies, gene therapy, diagnostics, bio sensors and artificial muscles. After an introduction to the topic and the history of smart biomaterials, the author gives the reader an in-depth look at the properties, mechanics, and characterization of smart biomaterials including hydrogels, particles, assemblies, surfaces, fibers and conjugates. Information on the wide range of applications for these materials follows, including drug delivery, tissue engineering, diagnostics, biosensors, bio separation and actuators. In addition, recent advances in shape memory biomaterials as active components of medical devices are also presented.

Presents a comprehensive, modern treatment of polymer materials being used in medicine and pharmacy Covers large biomedical and pharmaceutical areas, ranging from soft to hard tissues Provides good coverage of the commercial aspects of polymer biomedical devices Includes comprehensive references at the end of each chapter to enhance further study

This book presents an introduction to biomaterials with the focus on the current development and future direction of biomaterials and medical devices research and development in Indonesia. It is the first biomaterials book written by selected academic and clinical experts experts on biomaterials and medical devices from various institutions and industries in Indonesia. It serves as a reference source for researchers starting new projects, for companies developing and marketing products and for governments setting new policies. Chapter one covers the fundamentals of biomaterials, types of biomaterials, their structures and properties and the relationship between them. Chapter two discusses unconventional processing of biomaterials including nano-hybrid organic-inorganic biomaterials. Chapter three addresses biocompatibility issues including in vitro cytotoxicity, genotoxicity, in vitro cell models, biocompatibility data and its related failure. Chapter four describes degradable biomaterial for medical implants, which include biodegradable polymers, biodegradable metals, degradation assessment techniques and future directions. Chapter five focuses on animal models for biomaterial research, ethics, care and use, implantation study and monitoring and studies on medical implants in animals in Indonesia. Chapter six covers biomimetic bioceramics, natural-based biocomposites and the latest research on natural-based biomaterials in Indonesia. Chapter seven describes recent advances in natural biomaterial from human and animal tissue, its processing and applications. Chapter eight discusses orthopedic applications of biomaterials focusing on most common problems in Indonesia, and surgical intervention and implants. Chapter nine describes biomaterials in dentistry and their development in Indonesia.

New Trends in Smart Nanostructured Biomaterials in Health Sciences provides guidance on the design and synthesis of nanostructured smart biomaterials, as well as the resultant therapeutic effects and associated biomedical applications of these novel materials. The book provides readers with a deeper understanding of these novel biomaterials and aids them in making informed decisions when selecting appropriate materials for tissue engineering and cancer therapy applications. It will be of specific interest to materials scientists, biomedical engineers, oncological scientists, tissue engineers and those working in regenerative medicine. Nanostructured smart materials have the special ability to respond to changes in the cell microenvironment, allowing for robust, biocompatible and rapidly adaptable, therapeutic and restorative action against a range of ailments. These materials are thus ideal candidates for use in tissue engineering and cancer therapy due to the varying nature of the cell microenvironment between persons, tissues and cancers. This book covers the design, synthesis, unique properties and application of smart biomaterials in these two key topic areas of tissue engineering and cancer therapeutics. Presents an overview of how smart biomaterials respond to changes in physiological factors and exogeneous stimuli and their impact in modern medicine Provides readers with the basis for designing, processing and characterizing advanced smart biomaterials Guides the reader through the mechanisms of tissue repair and cancer therapeutics by exploring the most relevant features of smart nanostructured materials

Surface modification of biomaterials can ultimately determine whether a material is accepted or rejected from the human body, and a responsive surface can further make the material "smart" and "intelligent". Switchable and Responsive Surfaces and Materials for Biomedical Applications outlines synthetic and biological materials that are responsive under different stimuli, their surface design and modification techniques, and applicability in regenerative medicine/tissue engineering, drug delivery, medical devices, and biomedical diagnostics. Part one provides a detailed overview of switchable and responsive materials and surfaces, exploring thermo-responsive polymers, environmentally responsive polyelectrolytes and zwitterionic polymers, as well as peptide-based and photonic sensitive switchable materials. Further chapters include a detailed overview of the preparation and analysis of switchable polymer brushes and copolymers for biomedical application. Part two explores the biological interactions and biomedical applications of switchable surfaces, where expert analysis is provided on the interaction of switchable surfaces with proteins and cells. The interaction of stimuli-sensitive polymers for tissue engineering and drug delivery with biosurfaces is critiqued, whilst the editor provides a skillful study into the application of responsive polymers in implantable medical devices and biosensors. A comprehensive overview of switchable and responsive materials and surfaces Includes in depth analysis of thermo-responsive polymers, photonic sensitive materials and peptide-based surfaces Detailed exploration of biological interactions of responsive and switchable surfaces, covering stimuli-sensitive polymers for drug delivery, surfaces with proteins/cells and application of polymers in medical devices

are then selected and must meet the general 'biocompatibility' require ments. Prototypes are built and tested to include biocompatibility evalua tions based on ASTM standard procedures. The device is validated for sterility and freedom from pyrogens before it can be tested on animals or humans. Medical devices are classified as class I, II or III depending on their invasiveness. Class I devices can be marketed by submitting notification to the FDA. Class II and III devices require either that they show equivalence to a device marketed prior to 1976 or that they receive pre-marketing approval. The time from device conception to FDA approval can range from months (class I device) to in excess of ten years (class III device). Therefore, much planning is necessary to pick the best regulatory approach. 2. Wound Dressings and Skin Replacement 2.1 Introduction Wounds to the skin are encountered every day. Minor skin wounds cause some pain, but these wounds will heal by themselves in time. Even though many minor wounds heal effectively without scarring in the absence of treatment, they heal more rapidly if they are kept clean and moist. Devices such as Band-Aids are used to assist in wound healing. For deeper wounds, a variety of wound dressings have been developed including cell cultured artificial skin. These materials are intended to promote healing of skin damaged or removed as a result of skin grafting, ulceration, burns, cancer excision or mechanical trauma.

This volume introduces readers to the basic concepts and recent advances in the field of biomedical devices. The text gives a detailed account of novel developments in drug delivery, protein electrophoresis, estrogen mimicking methods and medical devices. It also provides the necessary theoretical background as well as describing a wide range of practical applications. The level and style make this book accessible not only to scientific and medical researchers but also to graduate students.