الصفحة 7
الصفحة 7
Nanotechnology ¿ Toxicological Issues and Environmental Safety and Environmental Safety
Nanotechnology is one of the fastest growing technological fields of the 21st century. Nanotechnologies will impact numerous industries, including daily consumer products, health care, energy, and transportation. However, the success of the emerging nanotechnology applications will depend on dynamic development of nanomaterial toxicology, risk and exposure assessment. Little is known about the potential adverse health and ecological effects of exposure to engineered nanomaterials, the main components of many nanotechnologies. Concerns are coming from the initial toxicological studies as well as the research and epidemiological reports on ultrafine particle toxicity. This book provides a summary of the state-of-art knowledge on nanomaterials and nanoparticles – toxicological issues; risk assessment and control measures.
Nanotechnology : Assessment and Perspectives
A new definition of Nanotechnology by the authors is used as an anchor for the various sections of the book. This leads to an integrated text reflecting the multidimensional challenges occurring around Nanotechnology. The most important results of the study are transferred into acting recommendations concerning scientific progress, industrial relevance, economic potential, educational needs, potential adverse health effects and philosophical aspects of Nanotechnology.
Nanostructures : Fabrication and Analysis
The main theme of this book is the exploration the underlying physical laws that permit the fabrication of nanometer-scale structures. As researchers attempt to fabricate nanometer-scale structures which do not exist per se, they must still employ the natural laws to fabricate them through processes such as self-assembly. So it turns out that our techniques for fabrication of nanometer-scale structures are not artificial but actually rely on the natural laws. We even find that nanometer-scale structures, e.g. fullerenes, are fabricated in nature beneath the surface of the Earth. This fact may be called the ubiquity of the nanometer-scale structures. The topics presented in the book include: scanning probe-related and near-field techniques, nanolithography, self assembling and design of novel nanostructures, as well as new nanodevices and their application.
Nanoscaled Semiconductor-on-Insulator Structures and Devices
This proceedings volume constitutes an archive of the contributions of the key-speakers who attended the NATO Advanced Research Workshop on “Nanoscaled Semiconductor-On-Insulator Structures and devices” held in the Tourist and Recreation Centre “Sudak” (Crimea, Ukraine) from 15 to 19 October 2006. The semiconductor industry has sustained a very rapid growth during the last three decades through impressive technological developments which have resulted in products with higher performance and lower cost per function. After many years of development it is now confidently predicted that semiconductor-on-insulator materials will enter and increasingly be used by manufacturing industry. The wider use of semiconductor (es- cially silicon) on insulator materials will not only enable the benefits of these materials to be demonstrated but, also, will drive down the cost of substrates which, in turn, will stimulate the development of other novel devices and applications.
Nanoscale Transistors : Device Physics, Modeling and Simulation
The book is a useful reference for senior-level or graduate-level courses on nanoelectronics, modeling and simulation. Chapter 1 reviews some basic concepts, and Chapter 2 summarizes the essentials of traditional semiconductor devices, digital circuits, and systems. This material provides a baseline against which new devices can be assessed. Chapters 3 and 4 present a non-traditional view of the MOSFET using concepts that are valid at nanoscale. Chapter 5 applies the same concepts to nanotube FET as an example of how to extend the concepts to revolutionary nanotransistors. Chapter 6 explores the limits of devices by discussing conduction in single molecules.
Nanoscale Phenomena : Basic Science to Device Applications
Nanotechnology is the result of the continuing technological trend toward device miniaturization and the characterization, manipulation, and fine control of structure and function at diminishing length scales. A large class of nanoscale materials can be stable even though they are far from the lowest-energy thermodynamic state, and many possess novel properties unattainable in bulk. These trends are supported by the increasing sophistication of characterization and fabrication tools such as the scanning tunneling microscope and the transmission electron microscope, which allow the resolution and manipulation of single atoms and molecules.
Nanoscale Assembly : Chemical Techniques
Recent advances have pushed the limits of lithography firmly into the sub-100 nm domain, with smallest feature sizes around 10 nm. However, compared to living organisms, devices fabricated using nanolithography are not nearly as complex, as they are essentially 2D and contain only a limited number of chemical elements. For centuries, Nature has been a major inspiration for science. First of all to learn how Life functions at cellular level, but increasingly, as a blueprint for designing non-natural devices where the building blocks and their assembly are inspired by biological examples. The key tool in translating these examples into the domain of engineering, has been self-assembly or self-organization. This book gathers a spectrum researchers who have not only furthered our knowledge of self-assembly using small molecules, polymers and colloidal particles as building blocks, but who have also shown it to be a practical tool in the assembly of an astonishing variety of devices, ranging from molecular electronics to biosensors.
Nanopharmaceuticals ; Vol.1 : Expectations and realities of multifunctional drug delivery systems
Reviews advances in the drug delivery field via nanovehicles or nanocarriers that offer benefits like targeted therapy and serves as a single dose magic bullet for multiple drug delivery with improved drug efficiency at a lower dose, transportation of the drug across physiological barriers as well as reduced drug-related toxicity. The chapters are written by a diverse group of international researchers from industry and academia. The series Expectations and Realities of Multifunctional Drug Delivery Systems examines the fabrication, optimization, biological aspects, regulatory and clinical success of wide range of drug delivery carriers. This series reviews multifunctionality and applications of drug delivery systems, industrial trends, regulatory challenges and in vivo success stories. Throughout the volumes discussions on diverse aspects of drug delivery carriers, such as clinical, engineering, and regulatory, facilitate insight sharing across expertise area and form a link for collaborations between industry-academic scientists and clinical researchers. Expectations and Realities of Multifunctional Drug Delivery Systems connects formulation scientists, regulatory experts, engineers, clinical experts and regulatory stake holders. The wide scope of the book ensures it as a valuable reference resource for researchers in both academia and the pharmaceutical industry who want to learn more about drug delivery systems.
Nanopharmaceuticals : Vol.3 : Principles and applications
Focuses on the recent advances of nanopharmaceuticals in cancer, dental, dermal and drug delivery applications and presents their safety, toxicity and therapeutic efficacy. The book also includes the transport phenomenon of nanomaterials and important pathways for drug delivery applications. It goes on to explain the toxicity of nanoparticles to different physiological systems and methods used to assess this for different organ systems using examples of in vivo systems.
Nanomaterials for Application in Medicine and Biology
This volume contains research reports presented during the NATO Advanced Research Workshop (ARW) “Materials for Application in Medicine and Biology” held in Bonn, Germany, from October 4 to 6, 2006 at the center of advanced european studies and research (caesar). The application of nanomaterials in medicine and biology can be understood as the gathering and use of our current knowledge on nanoscale features of b- logical systems in order to learn how to design nanodevices for biomedical uses.
Nanomaterials and Nanosystems for Biomedical Applications
The book includes expert reviews on the advances and current problems associated with the implants and nanodevices along with their applications in medicine, pharmaceutics, cancer therapy, gene transfer and drug delivery. The editor, M. R. Mozafari (PhD), has been working in the field of nanobiotechnology for the past 14 years and has produced more than 60 publications.
Nanomaterials and Nanochemistry
Nanomaterials are a fast developing field of research and applications lie in many separate domains, such as in hi-tech (optics, electronics, biology, aeronautics), but also in consumer industries (automotive, concrete, surface treatments (including paints), cosmetics, etc.).
Nanocarrier Technologies : Frontiers of Nanotherapy
Nanobiotechnology is one of the key technologies of the 21st century. It is a combination of nanoscience and biotechnology and covers areas ranging from gene transfer and nanoencapsulation to food technology. Nanocarriers are a leading nanobiotechnology tool with the ability to provide protection, site-specific delivery, enhanced bioavailability and controlled release of pharmaceuticals, genetic material, imaging agents, nutraceuticals and cosmetics to name a few. For this reason, the study of nanocarriers, their properties and applications has attracted a great deal of interest over recent years. Designed as an advanced survey of the field, this book describes the key research parameters of nanocarrier technologies including their preparation methods, evaluation of their safety and efficiency, their interaction with biologicals and their application in biotechnology, drug delivery, gene therapy and food technology areas.
NanoBiotechnology : BioInspired Devices and Materials of the Future
NanoBioTechnology: BioInspired Devices and Materials of the Future is a groundbreaking text that will assist scientists and students in learning the fundamentals and cutting-edge nature of this new and emerging science. Focusing on materials and building blocks for nanotechnology, leading scientists from around the world share their knowledge and expertise in this authoritative volume. The volume is broken into five sections. The first section presents an overview of nanotechnology and describes the many aspects of the field. Section 2 details biological materials serving as nanotemplates for bottom-up fabrication. Section 3 covers the use of biological macromolecules for electron transfer and computation. Section 4 presents a brief overview of the extensive and rapidly growing field of nanomedicine. Finally, Section 5 details de-novo designed structures and the various approaches different scientific groups take with molecular level training and language
Nano- and Micromaterials
The future focus of nanotechnology will be on realizing new functions over greater scales. This book describes the creation of nano- and microscale structures and functions by controlling temperature, light, pressure, or carrier injections. It covers novel nano-integration technologies such as quantum-well devices possilbe by utilizing, for example, the self-organization of surface nanostructures and optically or pressure-induced phase transitions, micro machines using microstereolithography, as well as new techniques of laser spectroscopy and new computational methods for estimating atomic and electronic structures and their functions on the nano- and microscales.
Myeloproliferative disorders
Contains a series of contributions from internationally renowned academics with special expertise in one or other diseases which collectively are grouped under the heading myeloproliferative disorders. This term includes Ph-positive chronic myeloid leukemia as well as the various Ph-negative variants.
Mute people aiding application
Communication is an essential tool for human survival. It is a fundamental and effective method of sharing thoughts, needs, feelings, and opinions. However, a large portion of the world's population lacks the ability to communicate with others. Such as the ones suffering from hearing loss, speech disability, or even both. Those disabilities have a significant impact on their lives in terms of work and relationships. The majority of these people are sometimes unable to support themselves financially due to the lack of job opportunities. Given these difficulties, we have decided to develop an application to help them overcome the obstacles they may encounter in their daily lives. After consulting with two deaf and mute people we customized an application that works in two ways. One of which is to translate their sign language in real time by using mobile camera and recognizing hand motion. The other works by converting text-to-voice, and accurately expressing the user’s emotions with the help of the facial emotion recognition.
Music as Intangible Cultural Heritage : Economic, Cultural and Social Identity
Our first contact with music is almost certainly in our childhood when our parents sing lullabies to us at bedtime. In a community where music is important, these songs are likely to be successfully transmitted from one generation to the next. This is similar to the concept of intangible cultural heritage and how it is transmitted.
Multivariable Computer-controlled Systems : A Transfer Function Approach
Having established the ability of the parametric transfer function to solve this problem for single-input, single-output systems in previous work, the authors extend these methods, which incorporate time-dependence, to the idea of the parametric transfer matrix in a complete exposition of analysis and design methods for multiple-input, multiple-output (MIMO) sampled-data systems.
Multirate Statistical Signal Processing
This book introduces a statistical theory for extracting information from signals that have di?erent sampling rates. This new theory generalizes the conventional (deterministic) theory of multirate systems beyond many of its constraints.Furthermore,itallowsfortheformulationofseveralnewproblems such as spectrum estimation, time-delay estimation and sensor fusion in the realm of multirate signal processing. I have arrived at the theory presented here by integrating concepts from diverse areas such as information theory, inverse problems and theory of - equalities. The process of merging a variety of concepts of di?erent origin results in both merits and shortcomings. The former include the fresh and - di?erentiated view of an amateur, providing scope of application. The latter include a lack of in-depth experience in each of the original ?elds. Granted, this may lead to gaps in continuity, however it goes without saying that a complete theory can seldom be achieved by one person and in a short time.
