Frontiers Of Multifunctional Nanosystems
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Frontiers Of Multifunctional Nanosystems
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Author : Eugenia V. Buzaneva
language : en
Publisher: Springer Science & Business Media
Release Date : 2002-05-31
Frontiers Of Multifunctional Nanosystems written by Eugenia V. Buzaneva and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-05-31 with Science categories.
Proceedings of the NATO Advanced Research Workshop on Frontiers in Molecular-Scale Science and Technology of Fullerence, Nanotube, Nanosilicon, Biopolymer (DNA, Protein) Multifunctional Nanosystems, Kyiv, Ukraine, 9-12 September 2001
Quantum Mechanical First Principles Calculations Of The Electronic And Magnetic Structure Of Fe Bearing Rock Forming Silicates
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Author : Danylo Zherebetskyy
language : en
Publisher: Universal-Publishers
Release Date : 2010
Quantum Mechanical First Principles Calculations Of The Electronic And Magnetic Structure Of Fe Bearing Rock Forming Silicates written by Danylo Zherebetskyy and has been published by Universal-Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Science categories.
The focus of this thesis is the study of the electronic and magnetic structure of three representative members of Fe-bearing rock-forming silicates, viz. orthoferrosilite (Fe2+2Si2O6), almandine (Fe2+3Al2(SiO4)3) and andradite (Ca3Fe3+2(SiO4)3). These minerals have attracted significant attention due to their abundance in the Earth's crust and mantle, and because crystallised silicates are main components of cosmic dust which is the most abundant raw material in the Universe. For this purpose quantum mechanical first principles electronic structure calculations are performed by the most efficient DFT method in the local spin-density approximation for calculating spectroscopic data: the spin-polarized self consistent charge Xa method. The specific feature and strength of these investigations consist in the theoretical characterization of these complex systems based on experimental results. This means that, on one hand, experimental spectroscopic and crystallographic data are being used to judge the reliability of the calculations, whereas, on the other hand, experimental data are interpreted and explained by the theoretical results. This work comprises seven chapters. After a brief introduction (Chapter 1) Chapter 2 describes the theoretical bases, ideas, approximations and advantages of the SCC- Xa method and basics of the art of cluster construction. Chapter 3 considers physical bases of crystal field theory, absorption, Mossbauer spectroscopy and magnetic interactions, as well as the calculation of spectroscopic data within the frame of the SCC-Xa method. In addition, tetragonally, trigonally and angularly distorted octahedral sites with various degrees of the distortions are calculated and analyzed. The electronic and magnetic structures of orthoferrosilite, almandine and andradite are described in the following chapters. In the case of orthoferrosilite the magnetic interactions between the iron spins within the ribbons and between neighboring ribbons are characterized. Two identical interpenetrating magnetic sublattices of circles of 10 edge-shared dodecahedra are revealed and characterized in almandine. The calculated spin structure explains and solves the controversy in the interpretation of the Mossbauer spectra of almandine below the Neel temperature. For andradite a model of the magnetic structure is proposed based on geometrical considerations and the calculated spin coupling constants for the various interaction pathways. According to this model, the magnetic structure of andradite consists of two frustrated equivalent magnetic sublattices. The spins of the Fe ions within each sublattice are coupled antiferromagnetically. The derived spin pattern explains two sextets in the Mossbauer spectra of andradite below the Neel temperature. Finally, the main results are summarized in Chapter 7.
Cell Biology And Instrumentation
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Author : Yaroslav Blume
language : en
Publisher: IOS Press
Release Date : 2006
Cell Biology And Instrumentation written by Yaroslav Blume and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Medical categories.
Cellular processes, signaled by UV radiation, contribute to the behavior of plants under various stresses in the environment. This book aims to introduce developments and instrumentation for cell biology, to update our understanding of the effects of UV radiation, and to evaluate how plants use UV signals to protect against damage.
Computational Approaches In Biomedical Nano Engineering
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Author : Ayesha Sohail
language : en
Publisher: John Wiley & Sons
Release Date : 2019-01-14
Computational Approaches In Biomedical Nano Engineering written by Ayesha Sohail 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 2019-01-14 with Science categories.
This book comprehensively and systematically treats modern understanding of the Nano-Bio-Technology and its therapeutic applications. The contents range from the nanomedicine, imaging, targeted therapeutic applications, experimental results along with modelling approaches. It will provide the readers with fundamentals on computational and modelling aspects of advanced nano-materials and nano-technology specifically in the field of biomedicine, and also provide the readers with inspirations for new development of diagnostic imaging and targeted therapeutic applications.
Molecular Plasmonics
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Author : Volodymyr I. Chegel
language : en
Publisher: CRC Press
Release Date : 2020-11-18
Molecular Plasmonics written by Volodymyr I. Chegel and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-18 with Technology & Engineering categories.
This book summarizes the results of studies of molecules and molecular complexes using techniques based on surface plasmon resonance (SPR) in a novel scientific direction called molecular plasmonics. It presents the current state of investigations in the field of molecular plasmonics and discusses its two main physical phenomena: surface plasmon–polariton resonance (SPPR) and localized SPR (LSPR). Among the mathematical methods for the calculation of plasmonic systems response, the book emphasizes models based on the transfer-matrix method, Green function formalism, Mie scattering theory, and numerical methods. It considers the possibilities of the SPPR technique for registering conformational changes, surface plasmon–mediated photopolymerization, electrochemical processes, as well as reversible optoelectronic and physicochemical properties during investigation of molecular systems. It describes applications of the LSPR method, including creation of metamaterials, surface-enhanced fluorescence, and bio- and chemosensing using noble metal nanoparticles in colloidal, array, and composite polymeric film formats. It also highlights the development and applications of plasmonic nanochips.
Nanotechnological Approaches In Food Microbiology
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Author : Sanju Bala Dhull
language : en
Publisher: CRC Press
Release Date : 2020-12-27
Nanotechnological Approaches In Food Microbiology written by Sanju Bala Dhull and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-12-27 with Science categories.
Nanotechnology has gained attention in all aspects of modern science, having vital applications in the food chain, storage, quality monitoring, processing, preservation, and packaging. The global population is increasing rapidly, therefore there is a requirement to produce food products in a more proficient, non-toxic, and sustainable way. Food scientists and microbiologists are interested in food safety and quality assurance to produce excellent-quality food free of food pathogens Nanotechnological Approaches in Food Microbiology provides a systematic introduction and comprehensive information about practical approaches and characteristic features related to the significant applications of nanotechnology in food microbiology, including, nano-starch films, nanoemulsions, biogenic nanoparticles, and nanocapsules. The book will explore details about metal nanoparticle synthesis, characterization, mathematical modeling, kinetic studies, and their antimicrobial approaches. Key Features: Includes comprehensive knowledge on metal nanoparticle synthesis, characterization, mathematical modeling, kinetic studies and their antimicrobial approaches Lays out concepts of essential oil nanoemulsion and their potential antimicrobial applications Deals with the latest development in nano-starch composite biofilms containing bioactive constituents to inhibit pathogenic microbes Explores the nanocapsules as potential antimicrobial agents in food. Provides information regarding new biogenic nano-antimicrobials developed for the food safety and quality assurance This book will educate readers on the aspects of nanotechnology in food safety and quality assurance. Nanoemulsions, nanohydrogels, metal nanoparticles, nano-starch films, nanocapsules and nano-antimicrobials are the emerging essentials of nanotechnology that are used to preserve the food at greater extent. This book should be of interest to a large and varied audience of researchers in academia, industry, food processing, preservation, packaging, microbiology and policy regulations.
Polymer Fullerene Nanocomposites
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Author : Ayesha Kausar
language : en
Publisher: Elsevier
Release Date : 2023-01-10
Polymer Fullerene Nanocomposites written by Ayesha Kausar and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-10 with Technology & Engineering categories.
Polymer/Fullerene Nanocomposites: Design and Applications synopsizes state-of-the-art essentials and versatile inventions in polymers and fullerenes derived nanocomposites. As the design, fabrication and exploration of polymeric materials with fullerenes in advanced nanomaterials is progressing quickly because of their unique combination of properties, including optical, electronic, electrical, mechanical, thermal, photovoltaic, sensing, shape memory, capacitive, antimicrobial, and other applications, this book fills a void in literature compilation and assessment for a field still in its infancy. The introductory chapter of this manuscript provides a comprehensive update on the fundamentals and applications of fullerenes, with following chapters revealing the properties and essential aspects of polymeric nanocomposites. - Reconnoiters state-of-the-art of fullerenes - Focuses on fullerene nano-additives, developing covalent interactions, and physical dispersion with conjugated polymers and other polymeric matrices - Emphasizes fullerene nanowhisker and nanoball nanofillers in nanocomposites - Unfolds advanced applications of polymer/fullerene nanomaterials in stimuli-responsive systems, optoelectronic devices (photovoltaics, light emitting diodes and optical sensors), fuel cells, supercapacitors and biomedical fields
Portable Chemical Sensors
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Author : Dimitrios P. Nikolelis
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-02-02
Portable Chemical Sensors written by Dimitrios P. Nikolelis and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-02 with Science categories.
Biosensors are making a large impact in environmental, food, biomedical, and other applications. In comparison to standard analytical detection methods, such as minimal sample preparation and handling, they offer advantages including real time detection, rapid detection of the analytes of concern, use of non-skilled personnel, and portability. The aim of this book is to focus on research related to the rapid detection of agents and weapons of bioterrorism and provide a comprehensive review of the research topics most pertinent to advancing devices applicable to the rapid real-time detection of toxicants such as microbes, pathogens, toxins, or nerve gases. The ongoing war on terrorism and the rising security concerns are driving the need for newer faster biosensors against bio-warfare agents for both military and civil defence applications. The volume brings together contributions from the most eminent international researchers in the field, covering various aspects of work not so far published in any scientific journal and often going beyond the “state of art “ . Readers of these review articles will learn new technological schemes that can lead to the construction of devices that will minimize the risk of bio-terrorism.
Practical Aspects Of Computational Chemistry Iii
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Author : Jerzy Leszczynski
language : en
Publisher: Springer Science & Business
Release Date : 2014-04-23
Practical Aspects Of Computational Chemistry Iii written by Jerzy Leszczynski and has been published by Springer Science & Business this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-23 with Science categories.
Theoretical and Computational Chemistry research has made unparalleled advancements in understanding every expanding area of science and technology. This volume presents the state-of-the-art research and progress made by eminent researchers in the area of theoretical computational chemistry and physics. The title mirrors the name of the annual international conference “Conference on Current Trends on Computational Chemistry” (CCTCC) which has become a popular discussion ground for eminent Theoretical and Computational Chemists and has been honored by the presence of several Nobel Laureates. Practical Aspects of Computational Chemistry III is aimed at theoretical and computational chemists, physical chemists, material scientists and those who are eager to apply computational chemistry methods to problems of chemical and physical importance. The book is a valuable resource for undergraduate, graduate and PhD students as well as established researchers.
Carbon Nanotubes From Basic Research To Nanotechnology
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Author : Valentin N. Popov
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-05-03
Carbon Nanotubes From Basic Research To Nanotechnology written by Valentin N. Popov and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-05-03 with Technology & Engineering categories.
It is about 15 years that the carbon nanotubes have been discovered by Sumio Iijima in a transmission electron microscope. Since that time, these long hollow cylindrical carbon molecules have revealed being remarkable nanostructures for several aspects. They are composed of just one element, Carbon, and are easily produced by several techniques. A nanotube can bend easily but still is very robust. The nanotubes can be manipulated and contacted to external electrodes. Their diameter is in the nanometer range, whereas their length may exceed several micrometers, if not several millimeters. In diameter, the nanotubes behave like molecules with quantized energy levels, while in length, they behave like a crystal with a continuous distribution of momenta. Depending on its exact atomic structure, a single-wall nanotube –that is to say a nanotube composed of just one rolled-up graphene sheet– may be either a metal or a semiconductor. The nanotubes can carry a large electric current, they are also good thermal conductors. It is not surprising, then, that many applications have been proposed for the nanotubes. At the time of writing, one of their most promising applications is their ability to emit electrons when subjected to an external electric field. Carbon nanotubes can do so in normal vacuum conditions with a reasonable voltage threshold, which make them suitable for cold-cathode devices.