Relevant bibliographies by topics / Nanoscale materials and structure

Academic literature on the topic 'Nanoscale materials and structure'

Author: Grafiati
Published: 14 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Nanoscale materials and structure.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Nanoscale materials and structure"

1

Bentley, Cameron L., Minkyung Kang, and Patrick R. Unwin. "Nanoscale Structure Dynamics within Electrocatalytic Materials." Journal of the American Chemical Society 139, no. 46 (October 23, 2017): 16813–21. http://dx.doi.org/10.1021/jacs.7b09355.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Lookman, Turab, and Peter Littlewood. "Nanoscale Heterogeneity in Functional Materials." MRS Bulletin 34, no. 11 (November 2009): 822–31. http://dx.doi.org/10.1557/mrs2009.232.

Full text
Abstract:
AbstractThe physical properties that make “functional” materials worthy of their moniker frequently arise because of a phase transition that establishes a new kind of order as the material is cooled from a parent state. Such ordered states include ferroelectrics, ferromagnets, and structurally ordered martensites; because these states all break an orientational symmetry, and it is rare that one can produce the conditions for single domain crystallinity, the observed configuration is generally heterogeneous. However, the conditions under which domain structures form are highly constrained, especially by elastic interactions within a solid; consequently, the observed structures are far from fully random, even if disorder is present. Often the structure of the heterogeneity is important to the function, as in shape-memory alloys. Increasingly, we are surprised to discover new phases inside solids that are themselves a heterogeneous modulation of their parents.
APA, Harvard, Vancouver, ISO, and other styles
3

Stan, Gheorghe, Richard S. Gates, Qichi Hu, Kevin Kjoller, Craig Prater, Kanwal Jit Singh, Ebony Mays, and Sean W. King. "Relationships between chemical structure, mechanical properties and materials processing in nanopatterned organosilicate fins." Beilstein Journal of Nanotechnology 8 (April 13, 2017): 863–71. http://dx.doi.org/10.3762/bjnano.8.88.

Full text
Abstract:
The exploitation of nanoscale size effects to create new nanostructured materials necessitates the development of an understanding of relationships between molecular structure, physical properties and material processing at the nanoscale. Numerous metrologies capable of thermal, mechanical, and electrical characterization at the nanoscale have been demonstrated over the past two decades. However, the ability to perform nanoscale molecular/chemical structure characterization has only been recently demonstrated with the advent of atomic-force-microscopy-based infrared spectroscopy (AFM-IR) and related techniques. Therefore, we have combined measurements of chemical structures with AFM-IR and of mechanical properties with contact resonance AFM (CR-AFM) to investigate the fabrication of 20–500 nm wide fin structures in a nanoporous organosilicate material. We show that by combining these two techniques, one can clearly observe variations of chemical structure and mechanical properties that correlate with the fabrication process and the feature size of the organosilicate fins. Specifically, we have observed an inverse correlation between the concentration of terminal organic groups and the stiffness of nanopatterned organosilicate fins. The selective removal of the organic component during etching results in a stiffness increase and reinsertion via chemical silylation results in a stiffness decrease. Examination of this effect as a function of fin width indicates that the loss of terminal organic groups and stiffness increase occur primarily at the exposed surfaces of the fins over a length scale of 10–20 nm. While the observed structure–property relationships are specific to organosilicates, we believe the combined demonstration of AFM-IR with CR-AFM should pave the way for a similar nanoscale characterization of other materials where the understanding of such relationships is essential.
APA, Harvard, Vancouver, ISO, and other styles
4

Ariga, Katsuhiko. "Progress in Molecular Nanoarchitectonics and Materials Nanoarchitectonics." Molecules 26, no. 6 (March 15, 2021): 1621. http://dx.doi.org/10.3390/molecules26061621.

Full text
Abstract:
Although various synthetic methodologies including organic synthesis, polymer chemistry, and materials science are the main contributors to the production of functional materials, the importance of regulation of nanoscale structures for better performance has become clear with recent science and technology developments. Therefore, a new research paradigm to produce functional material systems from nanoscale units has to be created as an advancement of nanoscale science. This task is assigned to an emerging concept, nanoarchitectonics, which aims to produce functional materials and functional structures from nanoscale unit components. This can be done through combining nanotechnology with the other research fields such as organic chemistry, supramolecular chemistry, materials science, and bio-related science. In this review article, the basic-level of nanoarchitectonics is first presented with atom/molecular-level structure formations and conversions from molecular units to functional materials. Then, two typical application-oriented nanoarchitectonics efforts in energy-oriented applications and bio-related applications are discussed. Finally, future directions of the molecular and materials nanoarchitectonics concepts for advancement of functional nanomaterials are briefly discussed.
APA, Harvard, Vancouver, ISO, and other styles
5

Cui, Tianyu, Qingsuo Liu, Xin Zhang, Dawei Zhang, and Jinman Li. "Characterization of a Nanocrystalline Structure Formed by Crystal Lattice Transformation in a Bulk Steel Material." Metals 9, no. 1 (December 20, 2018): 3. http://dx.doi.org/10.3390/met9010003.

Full text
Abstract:
The formation of nanocrystalline structures in bulk metal materials is of great significance for both investigating the structural features of nanocrystalline materials and enhancing the value of bulk metal materials in engineering applications. Herein, we report a nanocrystalline structure formed by lattice transformation in a three-dimensional bulk metal material. We characterized its phase composition, three-dimensional features, and boundary structure. This nanocrystalline structure had microscale length and height and nanoscale width, which gave it a “nanoplate” structure in three-dimensional space. We observed edge dislocations in the interior of the nanocrystalline structure. A unique transitional boundary that contributed to maintaining its nanoscale size was found at the border between the parent phase and the nanocrystalline structure.
APA, Harvard, Vancouver, ISO, and other styles
6

Conradson, Steven, Francisco Espinosa-Faller, and Phillip Villella. "Local structure probes of nanoscale heterogeneity in crystalline materials." Journal of Synchrotron Radiation 8, no. 2 (March 1, 2001): 273–75. http://dx.doi.org/10.1107/s0909049500018999.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Azat, Seitkhan, Valodia V. Pavlenko, Almagul R. Kerimkulova, and Zulkhair A. Mansurov. "Synthesis and Structure Determination of Carbonized Nano Mesoporous Materials Based on Vegetable Raw Materials." Advanced Materials Research 535-537 (June 2012): 1041–45. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.1041.

Full text
Abstract:
This article presents the results of the synthesis of carbon nanomaterials: Nanoscale materials obtained by carbonization of waste agricultural products (apricot kernel, walnut, rice husk). The results of physico-chemical characteristics of the obtained nanomaterials.
APA, Harvard, Vancouver, ISO, and other styles
8

Yu, Edward T., and Stephen J. Pennycook. "Nanoscale Characterization of Materials." MRS Bulletin 22, no. 8 (August 1997): 17–21. http://dx.doi.org/10.1557/s0883769400033753.

Full text
Abstract:
One of the dominant trends in current research in materials science and related fields is the fabrication, characterization, and application of materials and device structures whose characteristic feature sizes are at or near the nanometer scale. Achieving an understanding of—and ultimately control over—the properties and behavior of a wide range of materials at the nanometer scale has therefore become a major theme in materials research. As our ability to synthesize materials and fabricate structures in this size regime improves, effective characterization of materials at the nanometer scale will continue to increase in importance.Central to this activity are the development and application of effective experimental techniques for performing characterization of structural, electronic, magnetic, optical, and other properties of materials with nanometer-scale spatial resolution. Two classes of experimental methods have proven to be particularly effective: scanning-probe techniques and electron microscopy. In this issue of MRS Bulletin, we have included eight articles that illustrate the elucidation of various aspects of nanometer-scale material properties using advanced scanningprobe or electron-microscopy techniques. Because the range of both experimental techniques and applications is extremely broad—and rapidly increasing—our intent is to provide several examples rather than a comprehensive treatment of this extremely active and rapidly growing field of research.
APA, Harvard, Vancouver, ISO, and other styles
9

Chen, Si-Ming, Huai-Ling Gao, Yin-Bo Zhu, Hong-Bin Yao, Li-Bo Mao, Qi-Yun Song, Jun Xia, et al. "Biomimetic twisted plywood structural materials." National Science Review 5, no. 5 (July 30, 2018): 703–14. http://dx.doi.org/10.1093/nsr/nwy080.

Full text
Abstract:
Abstract Biomimetic designs based on micro/nanoscale manipulation and scalable fabrication are expected to develop new-style strong, tough structural materials. Although the mimicking of nacre-like ‘brick-and-mortar’ structure is well studied, many highly ordered natural architectures comprising 1D micro/nanoscale building blocks still elude imitation owing to the scarcity of efficient manipulation techniques for micro/nanostructural control in practical bulk counterparts. Herein, inspired by natural twisted plywood structures with fascinating damage tolerance, biomimetic bulk materials that closely resemble natural hierarchical structures and toughening mechanisms are successfully fabricated through a programmed and scalable bottom-up assembly strategy. By accurately engineering the arrangement of 1D mineral micro/nanofibers in biopolymer matrix on the multiscale, the resultant composites display optimal mechanical performance, superior to many natural, biomimetic and engineering materials. The design strategy allows for precise micro/nanostructural control at the macroscopic 3D level and can be easily extended to other materials systems, opening up an avenue for many more micro/nanofiber-based biomimetic designs.
APA, Harvard, Vancouver, ISO, and other styles
10

Makovec, Darko. "Adaptation of the Crystal Structure to the Confined Size of Mixed-oxide Nanoparticles." Acta Chimica Slovenica 69, no. 4 (December 15, 2022): 756–71. http://dx.doi.org/10.17344/acsi.2022.7775.

Full text
Abstract:
Chemical composition and crystal structure are central to defining the functional properties of materials. But when a material is prepared in the form of nanoparticles, the structure and, as a consequence, the composition will also frequently change. Understanding these changes in the crystal structure at the nanoscale is therefore essential not only for expanding fundamental knowledge, but also for designing novel nanostructures for diverse technological and medical applications. The changes can originate from two thermodynamically driven phenomena: (i) a crystal structure will adapt to the restricted size of the nanoparticles, and (ii) metastable structural polymorphs that form during the synthesis due to a lower nucleation barrier (compared to the equilibrium phase) can be stabilized at the nanoscale. The changes to the crystal structure at the nanoscale are especially pronounced for inorganic materials with a complex structure and composition, such as mixed oxides with a structure built from alternating layers of several structural blocks. In this article the complex structure of nanoparticles will be presented based on two examples of well-known and technologically important materials with layered structures: magnetic hexaferrites (BaFe12O19 and SrFe12O19) and ferroelectric Aurivillius layered-perovskite bismuth titanate (Bi4Ti3O12).
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Nanoscale materials and structure"

1

ADAMO, FABRIZIO CORRADO. "Nanoscale Structure of Advanced Soft Materials for Innovative Applications." Doctoral thesis, Università Politecnica delle Marche, 2020. http://hdl.handle.net/11566/274538.

Full text
Abstract:
Il lavoro di ricerca svolto durante il mio dottorato è stato focalizzato sullo studio di nuovi materiali soffici, in particolare cristalli liquidi, polimeri e sistemi biologici, di particolare interesse per applicazioni innovative nel campo delle nano e bio tecnologie come nuovi dispositivi fotonici ed elettronici, materiali con alte performance meccaniche e biomateriali per la nanomedicina. Lo scopo principale della mia ricerca è stato lo studio delle relazioni tra le peculiari proprietà macroscopiche di questi materiali e la loro struttura nanoscopica. A tal fine, le tecniche di diffrazione e scattering di raggi X hanno avuto un ruolo chiave, in quanto sono state usate come principale strumento di studio. Gli esperimenti sono stati condotti presso sorgenti di luce di sincrotrone quali l’European Synchrotron Radiation Facility, Grenoble (Francia), ELETTRA, Trieste (Italia) e ALBA, Barcellona (Spagna), nel contesto di esperimenti approvati ufficialmente. Inoltre, in collaborazione con altri gruppi di ricerca internazionale, sono state applicate tecniche complementari a questi materiali per ottenere una caratterizzazione completa. Il lavoro di ricerca può essere identificato in quattro tematiche principali: i) l’influenza della struttura molecolare sulla fase nematica di cristalli liquidi bent-core. La recente scoperta della nanostruttura cibotattica della loro fase nematica rende queste molecole i candidati ideali per le due proprietà più ricercate ed elusive dei cristalli liquidi, cioè la biassialità e la ferroelettricità nella fase nematica, largamente riconosciute come le pietre miliari della scienza dei cristalli liquidi. I risultati ottenuti suggeriscono utili indizi per guidare la ricerca verso la sintesi di mesogeni bent-core che mostrano tali caratteristiche; ii) lo studio delle nanostrutture e dell’ordine molecolare di film ultra sottili di mesogeni bent-core depositati su substrati solidi per conoscere i meccanismi di ancoraggio e self-assembling di molecole di cristallo liquido all’interfaccia, studiando l’arrangiamento spaziale delle molecole (ordine in-plane e out-of-plane). Abbiamo ottenuto un film altamente ordinato con una struttura anisotropa in-plane delle molecole di cristallo liquido, risultato mai riportato in letteratura per questi sistemi; iii) studio strutturale di un cristallo liquido termotropico reattivo usato nella produzione di una nuova classe di thermoset (networks 3D interconnessi designati a preservare la morfologia nematica locale nello stato solido) con alte performance. Esperimenti di diffrazione di raggi X alle alte temperature hanno reso possibile per la prima volta il monitoraggio della trasformazione del gruppo etinilico terminale e seguire l’evoluzione della fase nematica durante il cross-linking della catena; iv) la caratterizzazione strutturale e fisico-chimico di innovativi nanosistemi liquido cristallini per la loro potenziale applicazione nello sviluppo di vettori efficienti e biocompatibili per il drug delivery nel campo della nanomedicina. Lo studio è stato focalizzato sull’incorporazione di un surfattante cationico nella fase cubica del fitantriolo, con e senza il farmaco antitumorale fluorouracile. Lo studio ha evidenziato l’efficienza del sistema fitantriolo/surfattante ionico come vettore per il drug delivery antitumorale.
My Ph.D. research work was focused on the investigation of new soft materials, in particular new liquid crystals, polymers and biosystems, of potential interest for innovative applications in the fields of nano- and bio-technologies including novel electronic and photonic devices, high mechanical-performance materials, biomaterials for nanomedicine and biosensing. The main purpose of my research work was the study of the relationships between the peculiar macroscopic properties of these materials and their structure at the nanoscale. To this end, a key role was played by the X-ray diffraction and scattering techniques used as the primary tool of experimental investigation. The X-ray measurements were carried out at the synchrotron light sources of the European Synchrotron Radiation Facility, Grenoble (France), ELETTRA, Trieste (Italy), and ALBA, Barcelona (Spain), in the context of officially approved experiments. A series of complementary techniques were also employed to better characterize these materials, in collaboration with other international research groups. The research work can be identified with four main topics: i) the influence of the molecular structure on the nematic phase of bent-core liquid crystals. The recently discovered cybotactic nanostructure of their nematic phase makes them the ideal candidates for the two most sought after and elusive properties of liquid crystals, namely the nematic biaxiality and the nematic ferroelectricity, widely recognized as the Holy Grail of the liquid crystal science. The findings suggest useful clues to guide the research effort towards the synthesis of novel bent-core mesogens exhibiting such features; ii) the study of the nanostructure and molecular ordering of ultra-thin films of bent-core mesogens deposited on solid substrate to gain insight into the mechanisms of anchoring and self-assembling of liquid crystal molecules at the interface and investigate the molecular space arrangement (in-plane and out-of-plane order). We obtained a highly ordered film with the anisotropic in-plane structure of the liquid crystal molecules, which has never been reported in the literature for these systems; iii) structural study of a reactive thermotropic liquid crystal used in the production of a new class of high-temperature/high-performance thermosets - crosslinked 3D networks designed to preserve the local nematic morphology in the solid state. High-temperature X-ray diffraction studies made it possible for the first time to monitor the transformation of the ethynyl end-group and to follow the evolution of the nematic phase during the chain extension/cross-linking reactions; iv) the structural and physico-chemical characterization of novel lyotropic liquid crystalline nanosystems for their potential applications in the development of efficient and biocompatible vectors for drug delivery in nanomedicine. The study was focused on the incorporation of a cationic surfactant in the phytantriol cubic phase, unloaded and loaded with the anticancer drug 5-fluorouracil. The study evidences the efficiency of the phytantriol/ionic surfactant system as anticancer drug delivery vectors.
APA, Harvard, Vancouver, ISO, and other styles
2

Kuna, Jeffrey James. "The effect of nanoscale structure on interfacial energy." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/62744.

Full text
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2011.
Vita. Cataloged from PDF version of thesis.
Includes bibliographical references.
Interfaces are ubiquitous in nature. From solidification fronts to the surfaces of biological cells, interfacial properties determine the interactions between a solid and a liquid. Interfaces, specifically liquid-solid interfaces, play important roles in many fields of science. In the field of biology, interfaces are fundamental in determining cell-cell interactions, protein folding behavior and assembly, and ligand binding. In chemistry, heterogeneous catalysts greatly increase reaction rates of reactions occurring at the interface. In materials science, crystallization and the resulting crystal habit are determined by interfacial properties, and interfaces affect diffusion through polycrystalline materials. In nanotechnology, much work on self-assembly, molecular recognition, catalysis, electrochemistry and numerous other applications depends on the properties of interfaces. The structure and properties of interfaces have been studied experimentally using a variety of techniques including various forms of microscopy, wetting measurements, and scattering techniques. Conventionally, the typical interface considered was highly homogeneous and exhibited a uniform composition and roughness. In contrast, many of the interfaces encountered in biological or nanotechnological systems have surfaces with a greater degree of complexity. While the surface may be compositionally homogeneous over a large area, these surfaces are structured and have a complex surface topology. On a mixed interface, several different chemical groups may be present on the surface, and the chemical composition can vary on a sub-nanometer length scale. Structured systems are inherently difficult to experimentally measure. Most techniques available to characterize interfaces average properties over the entire surface and are not sensitive to nanoscale variations. Furthermore, many of these techniques are incapable of distinguishing global, surface-dependent properties from artifactual influences. Many surface characterization techniques require a large, flat, smooth surface. Preparation of mixed interfaces is an experimental challenge as well as many mixed interfaces with nanoscale structure are present on objects that are themselves nanoscale, such as proteins. Several technological hurdles exist that limit the ability to produce nanoscale mixed interfaces large enough for conventional measurements. In this thesis, the effect of surface structure on wetting behavior was investigated. Interfaces can be characterized by the energy required to form them, a quantity called interfacial energy. Models have been developed to describe the interfacial energy of mixed interfaces for a wide range of surfaces. These models only account for the composition of the surface. The wetting behavior of mixed surfaces has also been related to artifact-dependent wetting effects (namely the effect of a boundary or asperity). No attempt has been made to incorporate surface structure into a global expression of interfacial energy. This thesis will study how the structure of an interface determines the resulting interfacial energy. Surfaces prepared with chemical domains of different length scales demonstrate and interfacial energy trend with significant deviation from the current best model. Specifically, the observed trend is non-linear, unlike the conventional model, and furthermore in some cases, is non-monotonic. These deviations are shown to stem from the surfaces' intrinsic structure and are not an artifact of the measurement process or surface defects. The deviations from the predicted trend are explained by the molecular scale structure of the solvent. The two proposed mechanisms, cavitation and confinement, arise when surface features are smaller than a solvent-dependent length. With cavitation, nonwetting surface features below a size threshold are more wetting than would be expected. With confinement, wetting patches become less wetting as their dimensions are decreased. Molecular dynamics simulations support the proposed mechanisms. Additional experimental results provide further experimental evidence of the proposed molecular-scale wetting phenomena.
by Jeffrey James Kuna.
Ph.D.
APA, Harvard, Vancouver, ISO, and other styles
3

Ma, Fengxian. "Computational exploration of structure and electronic functionality in nanoscale materials." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/112361/1/Fengxian_Ma_Thesis.pdf.

Full text
Abstract:
This project is a systematic study regarding the discovery and design of nanomaterials with potential applications in electronic devices. It reveals several promising candidates such as a new phase of transition metal dichalcogenides and the two-dimensional ionic boron sheet with novel electronic properties, which enrich the family of two-dimensional materials. The comprehensive calculations would also be a good guidance for the experimental realisation in the near future.
APA, Harvard, Vancouver, ISO, and other styles
4

Janko, Marek. "Structure and stability of biological materials – characterisation at the nanoscale." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-143453.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Tuchband, Michael R. "Revealing the Nanoscale Structure and Behavior of the Twist-Bend Nematic Liquid Crystal Phase." Thesis, University of Colorado at Boulder, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10752109.

Full text
Abstract:

The nematic phases of liquid crystals have been the most thoroughly investigated since the founding of the liquid crystal field in the early 1900’s. The resulting technologies, most notably the liquid crystal display, have changed our world and spawned an entire industry. Consequently, the recent identification of a new type of nematic – the twist-bend nematic – was met with as much surprise as excitement, as it melds the fluid properties and environmental responsiveness of conventional nematics with the intrinsic polarization and complex ordering of bent-core liquid crystals. I summarize the history of the twist-bend nematic phase, charting the development of our understanding from its first identification to the present day. Furthermore, I enumerate and highlight my own efforts in the field to characterize the behavior and nanoscale organization of the twist-bend phase.

APA, Harvard, Vancouver, ISO, and other styles
6

Ehrlich, Deborah J. C. "Synthetic strategies for control of structure from individual macromolecules to nanoscale materials to networks." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122451.

Full text
Abstract:
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references.
Chapter 1. Aqueous self-assembly of prodrug macromonomers. A series of highly tunable micelles for drug delivery were made from norbornene based poly(ethylene glycol) macromonomers with covalently linked drugs. A total of five macromonomers were made using three different drugs (telmisartan, paclitaxel, and SN-38) and three different drug loadings. Combinations of these macromonomers were then allowed to self assemble into micellar aggregates. The size, stability, and shape of these micellar aggregates were controlled with the highly versatile structure. Chapter 2. Post micellization modification of norbornene-containing prodrug macromonomers. Highly tunable micelles for drug delivery were functionalized after their selfassembly. Post-micellization inverse electron demand Diels-Alder reactions of norbornenes and tetrazines were used to signal changes in micelle size and stability through the addition of either hydrophilic or hydrophobic tetrazines.
Thiol-ene additions reactions were used to increase micelle size and form chemically crosslinked nanoparticles. These modifications of norbornene-containing prodrug macromonomer assemblies illustrate their versatility. Chapter 3. Synthesis of polymers by iterative exponential growth. A scalable synthetic route that enables absolute control over polymer sequence and structure has remained a key challenge in polymer chemistry. Here, we report an iterative exponential growth plus side-chain functionalization (IEG+) strategy for the production of macromolecules with defined sequence, length, and stereoconfiguration. Each IEG+ cycle begins with the azide opening of an enantiopure epoxide, followed by side chain functionalization, alkyne deprotection, and copper-catalyzed azide-alkyne cycloaddition (CuAAC). These cycles have been conducted to form unimolecular macromolecules with molar masses of over 6,000 g/mol.
Subsequent modifications to IEG+ allow for the functionalization of monomers prior to the IEG+ cycle, expanding the library of compatible side chain chemistries. Chapter 4. Introduction to elastomer toughening strategies. Silicone elastomers are ubiquitous. Here, silicone elastomers are discussed in terms of network structure, the impact of network structure upon physical properties, and modifications of network structure in order to achieve desired physical properties. Fillers, the standard toughening strategy, are discussed in conjunction with entanglement density. Focus is placed on the impact of entanglement density on material properties. Topological networks are discussed and noted for their stress dissipative properties. Chapter 5. Topology modification of polydimethylsiloxane elastomers through loop formation. Topological networks are well known for their stress dissipation through the pulley effect leading to soft, extensible materials.
Combining these properties with a traditionally crosslinked network to produce a hybrid material allows for enhanced extensibility without a loss in modulus. Here, such hybrid networks were made with poly(dimethyl siloxane) polymers of a range of molecular weights. Side-loop polymer brushes were synthesized and then crosslinked to create hybrid networks with the statistical formation of topological bonds. These materials were characterized through tensile testing. Elastomers formed with the same molecular weight polymer in both side-loops and network formation did not show mechanical properties that depended upon the fraction of networks used for brush formation. Elastomers made with long polymers in brush formation and shorter polymers for network formation resulted in highly extensible systems without significant loss in modulus.
by Deborah J.C. Ehrlich.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Department of Chemistry
APA, Harvard, Vancouver, ISO, and other styles
7

Salahshoor, Pirsoltan Hossein. "Nanoscale structure and mechanical properties of a Soft Material." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-theses/924.

Full text
Abstract:
"Recently, hydrogel have found to be promising biomaterials since their porous structure and hydrophilicity enables them to absorb a large amount of water. In this study the role of water on the mechanical properties of hydrogel are studied using ab-initio molecular dynamics (MD) and coarse-grained simulations. Condensed-Phased Optimized Molecular Potential (COMPASS) and MARTINI force fields are used in the all-atom atomistic models and coarse-grained simulations, respectively. The crosslinking process is modeled using a novel approach by cyclic NPT and NVT simulations starting from a high temperature, cooling down to a lower temperature to model the curing process. Radial distribution functions for different water contents (20%, 40%, 60% and 80%) have shown the crosslinks atoms are more hydrophilic than the other atoms. Diffusion coefficients are quantified in different water contents and the effect of crosslinking density on the water diffusion is studied. Elasticity parameters are computed by constant strain energy minimization in mechanical deformation simulations. It is shown that an increase in the water content results in a decrease in the elastic. Finally, continuum hyper elastic model of contact lens is studied for three different loading scenarios using Finite Element Model. "
APA, Harvard, Vancouver, ISO, and other styles
8

Janko, Marek [Verfasser], and Robert [Akademischer Betreuer] Stark. "Structure and stability of biological materials – characterisation at the nanoscale / Marek Janko. Betreuer: Robert Stark." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2012. http://d-nb.info/1022791176/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Hatton, Hilary J. "Magnetic and structural studies of nanoscale multilayer and granular alloy systems of Ag and FeCo." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286916.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Schiffrin, Agustin. "Self-assembly of amino acids on noble metal surfaces : morphological, chemical and electronic control of matter at the nanoscale." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/798.

Full text
Abstract:
Designing novel nanostructures which exploit the self-assembly capabilities of biomolecules yields a promising approach to control matter at the nanoscale. Here, the homochiral molecular self-assemblies of the methionine and tyrosine amino acids on the monocrystalline Ag(111) and Cu(111) surfaces are characterized by means of scanning tunneling microscopy (STM) and spectroscopy (STS), helium atom scattering (HAS), x-ray photoelectron spectroscopy (XPS) and near-edge x-ray absorption fine structure (NEXAFS) in ultrahigh vacuum (UHV). On Ag(111), methionine self-assembles into supramolecular chains following the <110> substrate axis, forming regular nanogratings with tunable periodicity. Within the nanowires, a zwitterionic dimerization scheme is revealed. STS shows that the biomolecular nanostructures act as tunable one-dimensional quantum resonators for the surface state electrons. Zero-dimensional electronic confinement is achieved by positioning single iron atoms in the molecular trenches. This shows a novel approach to control the dimensionality of surface state electrons. The nanogratings were exploited to steer the spontaneous one-dimensional ordering of cobalt and iron atoms. For T > 15 K, the metal species self-align into homogeneously distributed chains in between the biomolecular trenches with ~25 Å interatomic distace. For Co, the dynamics of the self-alignment was monitored, revealing a reduced mobility in comparison with isolated Co atoms on bare Ag(111). On Cu(111), the self-assembly of methionine is influenced by the substrate reactivity and its temperature during molecular deposition. For T < 273 K, the biomolecules assemble in anisotropic extended clusters oriented with a -10° rotation off the <110> substrate orientations, whereas above 283 K a regularly ordered 1D phase arises with a +10° rotation off these high-symmetry axis. XPS reveals a structural transformation triggered by a thermally activated deprotonation of the zwitterionic ammonium group. On Ag(111), tyrosine self-assembles above a critical temperature into linear structures primarily following the substrate crystalline symmetry. A zwitterionic non-covalent molecular dimerization is demonstrated, NEXAFS data providing evidence of a non-flat adsorption of the phenyl ring. This recalls the geometrical pattern of methionine on Ag(111) and supports a universal self-assembling scheme for amino acids on close-packed noble metal surfaces, the different mesoscopic ordering being determined by the side chain reactivity.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Nanoscale materials and structure"

1

Fan, Chunhai. DNA Nanotechnology: From Structure to Function. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bellucci, Stefano. Physical Properties of Ceramic and Carbon Nanoscale Structures: The INFN Lectures, Vol. II. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

1952-, Andrews David L., ed. Structured light and its applications: An introduction to phase-structured beams and nanoscale optical forces. Amsterdam: Academic, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Scherer, Maik Rudolf Johann. Double-Gyroid-Structured Functional Materials: Synthesis and Applications. Heidelberg: Springer International Publishing, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Liz-Marzán, Luis M., and Prashant V. Kamat, eds. Nanoscale Materials. Boston: Kluwer Academic Publishers, 2004. http://dx.doi.org/10.1007/b101855.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

name, No. Nanoscale materials. Boston, MA: Kluwer Academic Publishers, 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

M, Liz-Marzán Luis, and Kamat Prashant V, eds. Nanoscale materials. Boston: Kluwer Academic Publishers, 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Symposium, A. on Microstructuring and Microsystems (1995 Strasbourg France). Small scale structures: Proceedings of Symposium A on Microstructuring and Microsystems, Symposium B on Materials for Sensors: Functional Nanoscaled Structures, and Symposium E on Structure and Properties of Metallic Thin Films and Multilayers of the 1995 E-MRS Spring Conference, Strasbourg, France, May 22-26, 1995. Amsterdam: Elsevier, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Mukhopadhyay, Sharmila M., ed. Nanoscale Multifunctional Materials. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118114063.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Ariga, Katsuhiko, ed. Manipulation of Nanoscale Materials. Cambridge: Royal Society of Chemistry, 2012. http://dx.doi.org/10.1039/9781849735124.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Nanoscale materials and structure"

1

Trellakis, Alex, and Peter Vogl. "Electronic Structure and Transport for Nanoscale Device Simulation." In Materials for Tomorrow, 123–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-47971-0_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Resasco, Daniel E. "Carbon Nanotubes and Related Structures." In Nanoscale Materials in Chemistry, 441–91. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470523674.ch13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Diebold, Alain, and Tino Hofmann. "Introduction to the Band Structure of Solids." In Optical and Electrical Properties of Nanoscale Materials, 61–104. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-80323-0_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Tiedke, S., and T. Schmitz. "Electrical Characterization of Nanoscale Ferroelectric Structures." In Nanoscale Characterisation of Ferroelectric Materials, 87–114. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08901-9_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Yarin, Alexander L., Min Wook Lee, Seongpil An, and Sam S. Yoon. "Characterization of Self-Healing Phenomena on Micro- and Nanoscale Level." In Advanced Structured Materials, 121–34. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05267-6_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Webb, J., T. G. St. Pierre, and D. J. Macey. "New Materials and Nanoscale Structures derived from Biominerals." In Main Group Elements and their Compounds, 18–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-52478-3_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Pierre, T. G. St, P. Sipos, P. Chan, W. Chua-Anusorn, K. R. Bauchspiess, and J. Webb. "Synthesis of Nanoscale Iron Oxide Structures Using Protein Cages and Polysaccharide Networks." In Nanophase Materials, 49–56. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1076-1_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Campi, Gaetano. "Structural Fluctuations at Nanoscale in Complex Functional Materials." In Synchrotron Radiation Science and Applications, 181–89. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72005-6_14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ohmura, Takahito. "Nanomechanical Characterization of Metallic Materials." In The Plaston Concept, 157–95. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7715-1_8.

Full text
Abstract:
AbstractMechanical behavior of metallic materials on nanoscale is characterized by using Nanoindentation and Transmission Electron Microscope (TEM) to understand the fundamental plasticity mechanisms associated with microstructural factors including dislocations. The advanced characterization techniques enable us to grasp the behavior on the nanoscale in detail. New knowledges are obtained for the plasticity initiation under the extremely high stress close to the theoretical strength in regions with defect-free matrix and pre-existing defects such as grain boundaries, in-solution elements, and dislocations. The grain boundaries act as an effective dislocation source, the in-solution elements retard a nucleation of dislocation, and the pre-existing dislocations assist a plasticity initiation. The deformation behavior associated with microstructures is also described. The dislocation structure with a certain density was observed right after indentation-induced strain burst, which is so-called “pop-in,” suggesting a dislocation avalanche upon the pop-in. It has been directly observed that the lower mobility screw dislocation causes the higher flow stress in a bcc metal. A remarkable strain softening can be understood by an increase in dislocation density based on conventional physical models. Phase stability for indentation-induced transformation depends on a constraint effect by inter-phase boundary and grain boundary.
APA, Harvard, Vancouver, ISO, and other styles
10

Moon, S. M., and Nam Hee Cho. "Synthesis and Structural Characterization of Nanoscale BaTiO3 Powders." In Materials Science Forum, 1323–27. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-443-x.1323.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Nanoscale materials and structure"

1

Liu, Yong, Ruiqing Chu, Zhijun Xu, Qian Chen, and Guorong Li. "Structure and electrical properties of (La,Ta)-doped (K0.5Na0.5)0.94Li0.06Nb0.95Ta0.05O3 ceramic." In Nanoscale Phenomena in Polar Materials. IEEE, 2011. http://dx.doi.org/10.1109/isaf.2011.6014003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Chen, Qian, Zhijun Xu, Ruiqing Chu, Yong Liu, Mingli Chen, Lin Shao, and Guorong Li. "Structure and electrical properties of Ho-modified Sr2Bi4Ti5O18 Lead-free piezoelectric ceramics." In Nanoscale Phenomena in Polar Materials. IEEE, 2011. http://dx.doi.org/10.1109/isaf.2011.6014004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Xing, Zhijiu, Li Li, Yuling Su, Dongmei Deng, Zhenjie Feng, Shixun Cao, and Jincang Zhang. "Effect of divalent Ca ions substitution on structure and properties in multiferroic YbCrO3 chromites." In Nanoscale Phenomena in Polar Materials. IEEE, 2011. http://dx.doi.org/10.1109/isaf.2011.6013987.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Do, D., J. W. Kim, G. H. Kim, Y. R. Bae, E. S. Kim, S. S. Kim, M. H. Lee, et al. "EuMnO3 effects on structure and electrical properties of chemical solution deposited BiFeO3 thin films." In Nanoscale Phenomena in Polar Materials. IEEE, 2011. http://dx.doi.org/10.1109/isaf.2011.6014145.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Yamazoe, Seiji, Akihiro Kohori, Hiroyuki Sakurai, Takahiro Wada, Yuuki Kitanaka, Yuji Noguchi, and Masaru Miyayama. "Study on domain structure of NaNbO3 films by laser beam scanning microscope and piezoresponse force microscope." In Nanoscale Phenomena in Polar Materials. IEEE, 2011. http://dx.doi.org/10.1109/isaf.2011.6014111.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Ho, Dean, Ben Chu, Hyeseung Lee, and Carlo D. Montemagno. "Nanoscale hybrid protein/polymer functionalized materials." In Smart Structures and Materials, edited by Vijay K. Varadan. SPIE, 2004. http://dx.doi.org/10.1117/12.539315.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Tang, Xiaoduan, Shen Xu, and Xinwei Wang. "Far-field nanoscale thermal and structure imaging." In ICALEO® 2012: 31st International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2012. http://dx.doi.org/10.2351/1.5062395.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Gromov, Victor, Yurii Ivanov, Elena Nikitina, Krestina Aksenova, and Olga Semina. "Nanoscale level of the deformation band formation in bainite steel." In ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Author(s), 2016. http://dx.doi.org/10.1063/1.4966361.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Maheshwari, Gunjan, Nilanjan Mallik, Jandro Abot, Albert Song, Emily Head, Mitul Dadhania, Vesselin Shanov, et al. "Nanoscale materials for engineering and medicine." In The 15th International Symposium on: Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, edited by Vijay K. Varadan. SPIE, 2008. http://dx.doi.org/10.1117/12.782591.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Yoon, Sung-hwan, Chinnawat Srirojpinyo, Jun S. Lee, Joey L. Mead, Shinji Matsui, and Carol M. F. Barry. "Evaluation of novel tooling for nanoscale injection molding." In Smart Structures and Materials, edited by Vijay K. Varadan. SPIE, 2005. http://dx.doi.org/10.1117/12.599959.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Nanoscale materials and structure"

1

Wirth, Brian. Modeling investigation of the stability and irradiation-induced evolution of nanoscale precipitates in advanced structural materials. Office of Scientific and Technical Information (OSTI), April 2015. http://dx.doi.org/10.2172/1178434.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Son, Steven F., Richard A. Yetter, and Alexander S. Mukasyan. Silicon-Based Nanoscale Composite Energetic Materials. Fort Belvoir, VA: Defense Technical Information Center, February 2013. http://dx.doi.org/10.21236/ada573851.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Pearton, S. J., P. H. Holloway, R. K. Singh, A. F. Hebard, and S. Hershfield. Nanoscale Devices and Novel Engineered Materials. Fort Belvoir, VA: Defense Technical Information Center, June 2001. http://dx.doi.org/10.21236/ada388032.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Cooper, Stephen Lance. Quantum Materials at the Nanoscale - Final Report. Office of Scientific and Technical Information (OSTI), January 2016. http://dx.doi.org/10.2172/1234220.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Grulke, Eric A., and Mahendra K. Sunkara. Nanoscale Materials and Architectures for Energy Conversion. Office of Scientific and Technical Information (OSTI), May 2011. http://dx.doi.org/10.2172/1171604.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Vasudevan, Vijay K., and Jainagesh A. Sekhar. Lightweight, High-Strength, Age-Hardenable Nanoscale Materials. Fort Belvoir, VA: Defense Technical Information Center, March 2004. http://dx.doi.org/10.21236/ada422041.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Castleman Jr, A. W. Cluster Dynamics: Foundations for Developing Nanoscale Materials. Fort Belvoir, VA: Defense Technical Information Center, December 2003. http://dx.doi.org/10.21236/ada423029.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Kuljanishvili, Irma, and Venkat Chandrasekhar. Novel Nanoscale Materials for Energy Conversion Applications. Fort Belvoir, VA: Defense Technical Information Center, March 2011. http://dx.doi.org/10.21236/ada544921.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Kostecki, Robert, Xiang Yun Song, Kim Kinoshita, and Frank McLarnon. Nanoscale fabrication and modification of selected battery materials. Office of Scientific and Technical Information (OSTI), June 2001. http://dx.doi.org/10.2172/834264.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Blair, Steve. Engineered Photonic Materials for Nanoscale Optical Logic Devices. Fort Belvoir, VA: Defense Technical Information Center, February 2004. http://dx.doi.org/10.21236/ada422569.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Nanoscale materials and structure' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography