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Author : Christophe N. Rochette
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (828 download)
Download or read book Structural Analysis of Nanoparticles by Small Angles X-ray Scattering written by Christophe N. Rochette and published by . This book was released on 2012 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Surender Kumar Sharma
Publisher : Springer
ISBN 13 : 3319929550
Total Pages : 612 pages
Book Rating : 4.3/5 (199 download)
Download or read book Handbook of Materials Characterization written by Surender Kumar Sharma and published by Springer. This book was released on 2018-09-18 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the widely used experimental techniques available for the structural, morphological, and spectroscopic characterization of materials. Recent developments in a wide range of experimental techniques and their application to the quantification of materials properties are an essential side of this book. Moreover, it provides concise but thorough coverage of the practical and theoretical aspects of the analytical techniques used to characterize a wide variety of functional nanomaterials. The book provides an overview of widely used characterization techniques for a broad audience: from beginners and graduate students, to advanced specialists in both academia and industry.
Author : Stefan Fischer
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (19 download)
Download or read book Small-angle X-ray Scattering Analysis of Nanomaterials written by Stefan Fischer and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L.A. Feigin
Publisher : Springer Science & Business Media
ISBN 13 : 1475766246
Total Pages : 339 pages
Book Rating : 4.4/5 (757 download)
Download or read book Structure Analysis by Small-Angle X-Ray and Neutron Scattering written by L.A. Feigin and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small-angle scattering of X rays and neutrons is a widely used diffraction method for studying the structure of matter. This method of elastic scattering is used in various branches of science and technology, includ ing condensed matter physics, molecular biology and biophysics, polymer science, and metallurgy. Many small-angle scattering studies are of value for pure science and practical applications. It is well known that the most general and informative method for investigating the spatial structure of matter is based on wave-diffraction phenomena. In diffraction experiments a primary beam of radiation influences a studied object, and the scattering pattern is analyzed. In principle, this analysis allows one to obtain information on the structure of a substance with a spatial resolution determined by the wavelength of the radiation. Diffraction methods are used for studying matter on all scales, from elementary particles to macro-objects. The use of X rays, neutrons, and electron beams, with wavelengths of about 1 A, permits the study of the condensed state of matter, solids and liquids, down to atomic resolution. Determination of the atomic structure of crystals, i.e., the arrangement of atoms in a unit cell, is an important example of this line of investigation.
Author : Alvin Chang
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book Quantitative Analysis of Silica Nanoparticle Structures Via Small-angle X-ray Scattering written by Alvin Chang and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasmall nanoparticles have seen growing interest in several fields such as medicine, optics, and catalysis due to their unique size-dependent properties. Among these are fluorescent core-shell silica nanoparticles synthesized in water known as Cornell prime dots (C' dots), which are composed of a silica core and a poly(ethylene glycol) (PEG) shell. These C' dots are poised to become promising diagnostic and therapeutic tools in medicine, particularly for cancer applications. While spherical C' dots have already been in FDA-approved human clinical trials, exploration has expanded into different topologies of silica nanoparticles such as rings and cages, providing higher aspect ratios and higher surface area to volume ratios. For clinical translation of such nanostructures, quantitative assessments of their size and size dispersity remain parameters for further investigation and are critical to understanding and evaluating their effectiveness and safety in nanomedicine applications. Here, solution small-angle X-ray scattering was employed to characterize 3D structural details of ring-type silica nanostructures and their size and size dispersity. A hollow cylinder model provided consistent structural and dispersity parameters that were supported by transmission electron microscopy investigations.
Author : Alexander L. Efros
Publisher : Springer Science & Business Media
ISBN 13 : 1475736770
Total Pages : 277 pages
Book Rating : 4.4/5 (757 download)
Download or read book Semiconductor Nanocrystals written by Alexander L. Efros and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: A physics book that covers the optical properties of quantum-confined semiconductor nanostructures from both the theoretical and experimental points of view together with technological applications. Topics to be reviewed include quantum confinement effects in semiconductors, optical adsorption and emission properties of group IV, III-V, II-VI semiconductors, deep-etched and self assembled quantum dots, nanoclusters, and laser applications in optoelectronics.
Author : Joyce Alvin Bearden
Publisher :
ISBN 13 :
Total Pages : 548 pages
Book Rating : 4.3/5 (91 download)
Download or read book X Ray Wavelengths written by Joyce Alvin Bearden and published by . This book was released on 1964 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Li Li
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (634 download)
Download or read book Structural Analysis of Cylindrical Particles by Small Angle X-ray Scattering written by Li Li and published by . This book was released on 2005 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Oliver Diwald
Publisher : John Wiley & Sons
ISBN 13 : 1119436745
Total Pages : 903 pages
Book Rating : 4.1/5 (194 download)
Download or read book Metal Oxide Nanoparticles, 2 Volume Set written by Oliver Diwald and published by John Wiley & Sons. This book was released on 2021-09-14 with total page 903 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide Nanoparticles A complete nanoparticle resource for chemists and industry professionals Metal oxide nanoparticles are integral to a wide range of natural and technological processes—from mineral transformation to electronics. Additionally, the fields of engineering, electronics, energy technology, and electronics all utilize metal oxide nanoparticle powders. Metal Oxide Nanoparticles: Formation, Functional Properties, and Interfaces presents readers with the most relevant synthesis and formulation approaches for using metal oxide nanoparticles as functional materials. It covers common processing routes and the assessment of physical and chemical particle properties through comprehensive and complementary characterization methods. This book will serve as an introduction to nanoparticle formulation, their interface chemistry and functional properties at the nanoscale. It will also act as an in-depth resource, sharing detailed information on advanced approaches to the physical, chemical, surface, and interface characterization of metal oxide nanoparticle powders and dispersions. Addresses the application of metal oxide nanoparticles and its economic impact Examines particle synthesis, including the principles of selected bottom-up strategies Explores nanoparticle formulation—a selection of processing and application routes Discusses the significance of particle surfaces and interfaces on structure formation, stability and functional materials properties Covers metal oxide nanoparticle characterization at different length scales With this valuable resource, academic researchers, industrial chemists, and PhD students can all gain insight into the synthesis, properties, and applications of metal oxide nanoparticles.
Author : Challa S.S.R. Kumar
Publisher : Springer
ISBN 13 : 3662486067
Total Pages : 835 pages
Book Rating : 4.6/5 (624 download)
Download or read book X-ray and Neutron Techniques for Nanomaterials Characterization written by Challa S.S.R. Kumar and published by Springer. This book was released on 2016-10-13 with total page 835 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fifth volume of a 40 volume series on nanoscience and nanotechnology, edited by the renowned scientist Challa S.S.R. Kumar. This handbook gives a comprehensive overview about X-ray and Neutron Techniques for Nanomaterials Characterization. Modern applications and state-of-the-art techniques are covered and make this volume an essential reading for research scientists in academia and industry.
Author : Siyu Wu
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book THREE-DIMENSIONAL RECONSTRUCTION OF THE ALLOYING PROCESS OF GOLD-SILVER NANOPARTICLES BY SMALL-ANGLE X-RAY SCATTERING written by Siyu Wu and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alloy nanoparticles have been extensively studied for decades. However, the synthesis and characterization of alloy nanoparticles are still posing significant challenges, leading to an increasing demand for in situ characterization techniques. Small-angle X-ray scattering (SAXS) is a powerful method for structural analysis of nanoparticles. As the SAXS signal is essentially the Fourier transform of the electron distribution, it provides structural information for the entire ensemble of nanoparticles. The development of SAXS has been facilitated by significant advances in synchrotron X-ray sources and data processing methods, leading to the development of the 3D-SAXS method, which enables the reconstruction of the 3D structures of particles from SAXS profiles.Although SAXS has the potential to be a powerful tool for investigating the internal structures of alloy nanoparticles, its application is hindered by the challenges posed by polydispersity, which can cause smearing effects that complicate the geometry recovery process. This dissertation presents a novel approach to overcome the problem of polydispersity in SAXS data analysis, thus demonstrating the utility of SAXS in investigating the internal electron density distributions of alloy nanoparticles. In Chapter 2, the SharPy algorithm is introduced as a size-refocusing program that reduces the smearing effect caused by polydispersity in SAXS data. SharPy is based on a penalized iterative regression approach to fit the pair distance distribution function (PDDF) with an estimated size distribution. It can provide detailed information about the shape of nanoparticles from the smeared SAXS signal under various scenarios and conditions. Chapter 3 investigates the simulated SAXS profiles of AuAg core-shell nanoparticles with varying size distribution, core-shell ratio, and degrees of alloying. It demonstrates the capability of SAXS in observing the electron density distribution of AuAg core-shell structures. These findings provide insights into the potential of SAXS as a reliable method for investigating the internal structures of alloy nanoparticles. Chapter 4 focuses on synthesizing and characterizing AuAg nanoparticles. Their SAXS profiles and PDDF analysis demonstrate that SAXS can distinguish between homogeneous and core-shell nanoparticle structures. In this chapter, the SharPy algorithm is first-time applied to real experimental data, demonstrating its ability to reveal the core-shell structure from a polydisperse nanoparticle system. Chapter 5 investigates the evolution of alloying AuAg nanoparticles through a combination of SAXS/PDDF analysis, 3D reconstruction, and molecular dynamics (MD) simulation. The study presents the 3D electron density distribution of alloying AuAg nanoparticles. The 3D reconstruction with electron density mapping provides a straightforward visualization of the electron density distribution pattern of the alloying AuAg nanoparticles. The success of the SAXS experiment lies in the development of the 3D-SAXS pipeline, which involves the use of SharPy and 3D reconstruction programs, making 3D SAXS a promising alternative to electron microscopy for visualizing the morphology of nanoparticle systems.
Download or read book Small Angle X-ray Scattering from Biological Macromolecules and Nanoparticles written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Small-angle x-ray scattering (SAXS) is experimencing a renaisance in the studies of macromolecular solutions, allowing one to study the structure of native particles and to rapidly analyze structural changes in response to variations in external conditions. Novel data analysis methods, significantly enhanced resolution, and reliability of structural models are provided by the technique. Emerging automation of the experiment, data processing, and data interpretation make SAXS a streamlined tool for large-scale structural studies in molecular biology. The method provides low-resolution macromolecular shapes ab initio and is readily combined with other structural and biochemical techniques in multidisciplinary studies to build rigid body models of complexes and to characterize oligomeric mixtures and flexible systems. The novel approaches also became useful for non-biological systems and processes, e.g., the formation of nanoparticles.
Author : Andrei Benediktovich
Publisher : Springer Science & Business Media
ISBN 13 : 3642381774
Total Pages : 325 pages
Book Rating : 4.6/5 (423 download)
Download or read book Theoretical Concepts of X-Ray Nanoscale Analysis written by Andrei Benediktovich and published by Springer Science & Business Media. This book was released on 2013-09-07 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a concise survey of modern theoretical concepts of X-ray materials analysis. The principle features of the book are: basics of X-ray scattering, interaction between X-rays and matter and new theoretical concepts of X-ray scattering. The various X-ray techniques are considered in detail: high-resolution X-ray diffraction, X-ray reflectivity, grazing-incidence small-angle X-ray scattering and X-ray residual stress analysis. All the theoretical methods presented use the unified physical approach. This makes the book especially useful for readers learning and performing data analysis with different techniques. The theory is applicable to studies of bulk materials of all kinds, including single crystals and polycrystals as well as to surface studies under grazing incidence. The book appeals to researchers and graduate students alike.
Author : Sunil K Sinha
Publisher : World Scientific
ISBN 13 : 9811231524
Total Pages : 430 pages
Book Rating : 4.8/5 (112 download)
Download or read book Advanced Characterization Of Nanostructured Materials: Probing The Structure And Dynamics With Synchrotron X-rays And Neutrons written by Sunil K Sinha and published by World Scientific. This book was released on 2021-03-23 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Characterization of Nanostructured Materials — Probing the Structure and Dynamics with Synchrotron X-Rays and Neutrons is a collection of chapters which review the characterization of the structure and internal dynamics of a wide variety of nanostructured materials using various synchrotron X-ray and neutron scattering techniques. It is intended for graduate students and researchers who might be interested in learning about and applying these methods. The authors are well-known practitioners in their fields of research who provide detailed and authoritative accounts of how these techniques have been applied to study systems ranging from thin films and monolayers on solid surfaces and at liquid-air, liquid-liquid and solid-liquid interfaces; nanostructured composite materials; battery materials, and catalytic materials. While there have been a great many books published on nanoscience, there are relatively few that have discussed in one volume detailed synchrotron X-ray and neutron methods for advanced characterization of nanomaterials in thin films, composite materials, catalytic and battery materials and at interfaces. This book should provide an incentive and a reference for researchers in nanomaterials for using these techniques as a powerful way to characterize their samples. It should also help to popularize the use of synchrotron and neutron facilities by the nanoscience community.
Author : Michael A. Kraus
Publisher :
ISBN 13 :
Total Pages : 151 pages
Book Rating : 4.:/5 (872 download)
Download or read book Fundamental Building Blocks of Nanoporous Networks from Ultra-small-angle X-ray Scattering (USAXS) and Small-angle X-ray Scattering (SAXS) Experiments written by Michael A. Kraus and published by . This book was released on 2010 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new method of structural analysis that measures the nominal dimensions of pores using ultra-small-angle x-ray scattering (USAXS) and small-angle x-ray scattering (SAXS) data is presented. The characterization technique developed is applied to highly porous carbons that are used for reversible methane and hydrogen storage based on physisorption. Data is analyzed and fit under the primary working assumption that there is only one size and shape of pore and that the number of pores present in the sample is accounted for by the sample porosity, [phi]. The procedure presented in this study is not restricted to the analysis of carbonaceous materials. It is applicable to any porous material in which the nanopore is the fundamental building block. The advantage of our technique in comparison to methods currently used to measure the size and shape of nanopores, is that in addition to a width, at least one additional characteristic length is determined
Author : Stephan Dankesreiter
Publisher : diplom.de
ISBN 13 : 3836638959
Total Pages : 175 pages
Book Rating : 4.8/5 (366 download)
Download or read book Synthesis and Characterization of Nanoparticles written by Stephan Dankesreiter and published by diplom.de. This book was released on 2009-11-26 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhaltsangabe:Introduction: The development of small and smallest particle is one of today s key features in modern science. The goal is to form materials with improved properties than their classical ancestors with just a fractional amount of raw material. Another key feature of nanoparticles is their different, and sometimes unexpected, behavior concerning reactivity, compared with their bulk materials. Because of this, nanoparticles have a wide range of applications, especially in the field of catalysis. Here, characteristics of nanoparticles - more edges, corners, defects or oxygen vacancies are used to obtain a high performance of the catalysts. Nanoscaled particles also exhibit larger surface area and higher metal dispersion, which further contributes to the catalytic possibilities. To gain such particles, two different pathways are given: first, there is the so-called top down pathway, considered as further developments of micro technology, where physical preparation methods like lithography are used. The second way is the bottom up method where self-assembling systems, formed by surfactants, are used. Concerning gold nanoparticles, it is reported that the use of C16TAB at specified conditions, gives gold nanorods with a sharp size-distribution because the direction of growth is predetermined. Being a cationic surfactant, C16TAB affects the electrochemical potentials and introduces bromide-ions as an additional species to the reaction. To achieve gold nanoparticles from aqueous HAuCl4-solutions, the above-mentioned method needs a separate reducing agent such as ascorbic acid (Asc0), NaBH4 or N2H4. A way of synthesizing spherical gold nanoparticles is the use of Nd:YAG laser with a salt induced agglomeration. By modifying the formulation of the salt solution, different sizes are obtained. This way of synthesis, a combination of physical top-down and self-assembling bottom-up processes, can be modified by adding surfactants, like PEG, to optimize size distribution and physical characteristics, like UV-Vis absorption. This method is an elegant way of synthesis; however, problems may occur by functionalizing the particles, because of a high salt content. Here, a high influence of purity, concentration and composition to the size and shape of gold nanoparticles might be given. Therefore, a route of synthesis is needed, which shows high efficiency in producing gold nanoparticles and in stabilizing them with a manageable amount of [...]
Author : Dmitri I. Svergun
Publisher : OUP Oxford
ISBN 13 : 0191507032
Total Pages : 369 pages
Book Rating : 4.1/5 (915 download)
Download or read book Small Angle X-Ray and Neutron Scattering from Solutions of Biological Macromolecules written by Dmitri I. Svergun and published by OUP Oxford. This book was released on 2013-08-08 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small-angle scattering of X-rays (SAXS) and neutrons (SANS) is an established method for the structural characterization of biological objects in a broad size range from individual macromolecules (proteins, nucleic acids, lipids) to large macromolecular complexes. SAXS/SANS is complementary to the high resolution methods of X-ray crystallography and nuclear magnetic resonance, allowing for hybrid modeling and also accounting for available biophysical and biochemical data. Quantitative characterization of flexible macromolecular systems and mixtures has recently become possible. SAXS/SANS measurements can be easily performed in different conditions by adding ligands or binding partners, and by changing physical and/or chemical characteristics of the solvent to provide information on the structural responses. The technique provides kinetic information about processes like folding and assembly and also allows one to analyze macromolecular interactions. The major factors promoting the increasingly active use of SAXS/SANS are modern high brilliance X-ray and neutron sources, novel data analysis methods, and automation of the experiment, data processing and interpretation. In this book, following the presentation of the basics of scattering from isotropic macromolecular solutions, modern instrumentation, experimental practice and advanced analysis techniques are explained. Advantages of X-rays (rapid data collection, small sample volumes) and of neutrons (contrast variation by hydrogen/deuterium exchange) are specifically highlighted. Examples of applications of the technique to different macromolecular systems are considered with specific emphasis on the synergistic use of SAXS/SANS with other structural, biophysical and computational techniques.
