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Author : Alexandria J. Bear
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (428 download)
Download or read book Surface Modification Using Thin Films of Gold Nanoparticles written by Alexandria J. Bear and published by . This book was released on 2009 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ion N. Mihailescu
Publisher : MDPI
ISBN 13 : 3039284541
Total Pages : 276 pages
Book Rating : 4.0/5 (392 download)
Download or read book Synthesis and Modification of Nanostructured Thin Films written by Ion N. Mihailescu and published by MDPI. This book was released on 2020-03-17 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue “Synthesis and Modification of Nanostructured Thin Films” highlights the recent progress in thin film synthesis/modification and characterization. New methods are reviewed for the synthesis and/or modification of thin films based on laser, magnetron, chemical, and other techniques. The obtained thin nanostructures are characterized by complex and complementary techniques. We think that most of proposed methods can be directly applied in production, but some others still need further elaboration for long-term prospective applications in lasers, optics, materials, electronics, informatics, telecommunications, biology, medicine, and probably many other domains. The Guest Editor and the MDPI staff are therefore pleased to offer this Special Issue to interested readers, including graduate and PhD students as well as postdoctoral researchers, but also to the entire community interested in the field of nanomaterials. We share the conviction that this can serve as a useful tool for updating the literature, but also to aid in the conception of new production and/or research programs. There is plenty of room for further dedicated R&D advances based on new instruments and materials under development.
Author : Jeanne J. Xu
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (128 download)
Download or read book Thin Films of Gold Nanoparticles written by Jeanne J. Xu and published by . This book was released on 2015 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin films of gold nanoparticles (Au NPs) are of interest because of their unique physicochemical properties. These thin films have potential applications in electrical devices, chemical sensing, and biosensing. Retaining the integrity of the thin film is important for such applications. The purpose of this project is to assess the temporal stability and to explore the mechanisms of degradation of thin films of Au NPs on glass substrates. Thin films were fabricated through a layer-by-layer deposition process. Clean glass substrates were sequentially immersed in solutions of (3-aminopropyl)trimethoxysilane, synthesized Au NPs, and 1-dodecanethiol (DT). The wettability of each layer was characterized with contact angle goniometry. Upon the completion of thin film fabrication, slides were immersed in ultrapure water (nH2O) and changes in wettability were observed over a 7-day period. Although thin films of gold had more hydrophobic surfaces than DT-containing controls lacking Au NPs, there was still a significant decrease in contact angle once the films were immersed in high purity water. Thin film degradation was quantified by a decrease in contact angle. Two possible mechanisms of thin film degradation were investigated: (1) the desorption of DT from thin films by oxidation and (2) the desorption of Au NPs from the thin films. Antioxidant was added to the storage solution to test the oxidation mechanism. Contact angle analysis was used to monitor the changes in wettability of thin films in nH2O with antioxidant. The presence of antioxidant in nH2O improved thin film integrity. Inductively coupled plasma atomic emission spectroscopy was used to determine the change in Au3+ concentration from day 0 and day 7. No substantial change in Au3+ was observed from day 0 to day 7. Between the two mechanisms that were explored, thin film degradation appeared to occur primarily by the oxidation of DT molecules and their desorption into the surrounding medium.
Author : John Alexander
Publisher : Springer
ISBN 13 : 3319342290
Total Pages : 366 pages
Book Rating : 4.3/5 (193 download)
Download or read book Surface Modifications and Growth of Titanium Dioxide for Photo-Electrochemical Water Splitting written by John Alexander and published by Springer. This book was released on 2016-05-21 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This outstanding thesis provides a wide-ranging overview of the growth of titanium dioxide thin films and its use in photo-electrochemicals such as water splitting. The context for water splitting is introduced with the theory of semiconductor-liquid junctions, which are dealt with in detail. In particular plasmonic enhancement of TiO2 by the addition of gold nanoparticles is considered in depth, including a thorough and critical review of the literature, which discusses the possible mechanisms that may be at work. Plasmonic enhancement is demonstrated with gold nanoparticles on Nb-doped TiO2. Finally, the use of temperature and pressure to control the phase and morphology of thin films grown by pulsed laser deposition is presented.
Author : Marie-Isabelle Baraton
Publisher :
ISBN 13 :
Total Pages : 340 pages
Book Rating : 4.3/5 (91 download)
Download or read book Synthesis, Functionalization and Surface Treatment of Nanoparticles written by Marie-Isabelle Baraton and published by . This book was released on 2003 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesis, Functionalization and Surface Treatment of Nanoparticles is an area of crucial importance in the emerging field of nanotechnology. Controlling the surface chemical composition and mastering its modification at the nanometer scale are critical issues for high-added value applications involving nanoparticles. The basic applications of surface functionalization range from altering the wetting or adhesion characteristics and improving the nanoparticles dispersion in matrices to enhancing the catalytic properties and ordering the interfacial region, and such. The creation of specific surface sites on nanoparticles for selective molecular attachment is considered a promising approach for their applications in nanofabrication, nanopatterning, selfassembly, nanosensors, bioprobes, drug delivery, pigments, photocatalysis, LEDs, etc. This book presents novel and improved synthesis methods and approaches for controlling and functionalizing the nanoparticle surfaces to enhance the overall performance of the nanoparticles for targeted applications.
Author : Ann C. Gaffey
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (371 download)
Download or read book Surface Modification Using Gold Nanoparticles written by Ann C. Gaffey and published by . This book was released on 2006 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Abdel Salam Hamdy Makhlouf
Publisher : Elsevier
ISBN 13 : 0857094904
Total Pages : 449 pages
Book Rating : 4.8/5 (57 download)
Download or read book Nanocoatings and Ultra-Thin Films written by Abdel Salam Hamdy Makhlouf and published by Elsevier. This book was released on 2011-09-14 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coatings are used for a wide range of applications, from anti-fogging coatings for glass through to corrosion control in the aerospace and automotive industries. Nanocoatings and ultra-thin films provides an up-to-date review of the fundamentals, processes of deposition, characterisation and applications of nanocoatings.Part one covers technologies used in the creation and analysis of thin films, including chapters on current and advanced coating technologies in industry, nanostructured thin films from amphiphilic molecules, chemical and physical vapour deposition methods and methods for analysing nanocoatings and ultra-thin films. Part two focuses on the applications of nanocoatings and ultra-thin films, with chapters covering topics such as nanocoatings for architectural glass, packaging applications, conventional and smart nanocoatings for corrosion protection in aerospace engineering and ultra-thin membranes for sensor applications.With its distinguished editors and international team of contributors, Nanocoatings and ultra-thin films is an essential reference for professional engineers in the glazing, consctruction, electronics and transport industries, as well as all those with an academic research interest in the field. - Provides an up-to-date review of the fundamentals, processes of deposition, characterisation and applications of nanocoatings - Focuses on the applications of nanocoatings and ultra-thin films, covering topics such as nanocoatings for architectural glass, packaging applications and ultra-thin membranes for sensor applications - Includes chapters on current and advanced coating technologies in industry, nanostructured thin films from amphiphilic molecules, chemical and physical vapour deposition methods and methods for analysing nanocoatings and ultra-thin films
Author : Manoj B. Gawande
Publisher : Elsevier
ISBN 13 : 0128236027
Total Pages : 392 pages
Book Rating : 4.1/5 (282 download)
Download or read book Surface Modified Nanomaterials for Applications in Catalysis written by Manoj B. Gawande and published by Elsevier. This book was released on 2022-05-22 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Modified Nanomaterials for Applications in Catalysis: Fundamentals, Methods and Applications provides an overview of the different state-of-the-art surface modification methods of nanomaterials and their commercial applications. The main objective of this book is to comprehensively cover the modification of nanomaterial and their fabrication, including different techniques and discussions of present and emerging commercial applications. The book addresses fundamental chemistry concepts as applied to the modification of nanomaterials for applications in energy, catalysis, water remediation, sensors, and more. Characterization and fabrication methodologies are reviewed, along with the challenges of up-scaling of processes for commercial applications. This book is suitable for academics and practitioners working in materials science, engineering, nanotechnology, green chemistry and chemical engineering. Provides an overview of the basic principles of surface modification of nanomaterials Reviews useful fabrication and characterization methodologies for key applications Addresses surface modified nanomaterials for applications in catalysis, energy, sensor, environment, and more
Author : Janelle Dawn Secl Newman
Publisher :
ISBN 13 :
Total Pages : 350 pages
Book Rating : 4.3/5 (129 download)
Download or read book Formation, Characterization and Applications of Gold Nanoparticles and Surface-modified Gold written by Janelle Dawn Secl Newman and published by . This book was released on 2007 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mohamed Mehdi Chehimi
Publisher : John Wiley & Sons
ISBN 13 : 3527329986
Total Pages : 359 pages
Book Rating : 4.5/5 (273 download)
Download or read book Aryl Diazonium Salts written by Mohamed Mehdi Chehimi and published by John Wiley & Sons. This book was released on 2012-07-10 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diazonium compounds are employed as a new class of coupling agents to link polymers, biomacromolecules, and other species (e. g. metallic nanoparticles) to the surface of materials. The resulting high performance materials show improved chemical and physical properties and find widespread applications. The advantage of aryl diazonium salts compared to other surface modifiers lies in their ease of preparation, rapid (electro)reduction, large choice of reactive functional groups, and strong aryl-surface covalent bonding. This unique book summarizes the current knowledge of the surface and interface chemistry of aryl diazonium salts. It covers fundamental aspects of diazonium chemistry together with theoretical calculations of surface-molecule bonding, analytical methods used for the characterization of aryl layers, as well as important applications in the field of electrochemistry, nanotechnology, biosensors, polymer coatings and materials science. Furthermore, information on other surface modifiers (amines, silanes, hydrazines, iodonium salts) is included. This collection of 14 self-contained chapters constitutes a valuable book for PhD students, academics and industrial researchers working on this hot topic.
Author : Ramya Vedaiyan
Publisher :
ISBN 13 :
Total Pages : 498 pages
Book Rating : 4.:/5 (216 download)
Download or read book Synthesis of Surface Modified Nanoparticles for the Preparation of Thin Film Polymer Nanocomposite written by Ramya Vedaiyan and published by . This book was released on 2007 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on the surface modification of gold and bimetallic (gold/silver) nanoparticles of definite size and different aspect ratio and are readily dispersed in polymer matrix. Discusses tailoring the materials for their application as the polymeric chemical sensors and gas separation membranes.
Author : Sunmook Lee
Publisher :
ISBN 13 :
Total Pages : 306 pages
Book Rating : 4.:/5 (19 download)
Download or read book Surface Modification of Gold Nanoparticles and Their Application in Biomolecular Sensing written by Sunmook Lee and published by . This book was released on 2007 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. L. Mittal
Publisher : John Wiley & Sons
ISBN 13 : 1394231008
Total Pages : 596 pages
Book Rating : 4.3/5 (942 download)
Download or read book Polymer Surface Modification to Enhance Adhesion written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2024-04-02 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: POLYMER SURFACE MODIFICATION TO ENHANCE ADHESION This unique, comprehensive and groundbreaking book is the first on this important subject. Polymer Surface Modification to Enhance Adhesion comprises 13 chapters and is divided into two parts: Part 1: Energetic Treatments; and Part 2: Chemical Treatments. Topics covered include atmospheric pressure plasma treatment of polymers to enhance adhesion; corona treatment of polymer surfaces to enhance adhesion; flame surface treatment of polymers to enhance adhesion; vacuum UV photo-oxidation of polymer surfaces to enhance adhesion; optimization of adhesion of polymers using photochemical surface modification UV/Ozone surface treatment of polymers to enhance adhesion; adhesion enhancement of polymer surfaces by ion beam treatment; polymer surface modification by charged particles; laser surface modification of polymeric materials; competition in adhesion between polysort and monosort functionalized polyolefinic surfaces; amine-terminated dendritic materials for polymer surface modification; arginine-glycine-aspartic acid (RGD) modification of polymer surfaces; and adhesion promoters for polymer surfaces. Audience The book will be of great interest to polymer scientists, surface scientists, adhesionists, materials scientists, plastics engineers, and to those involved in adhesive bonding, packaging, printing, painting, metallization, biological adhesion, biomedical devices, and polymer composites.
Author :
Publisher : John Wiley & Sons
ISBN 13 : 3527321551
Total Pages : 453 pages
Book Rating : 4.5/5 (273 download)
Download or read book Nanostructured Thin Films and Surfaces written by and published by John Wiley & Sons. This book was released on 2010-03-08 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book series Nanomaterials for the Life Sciences, provides an in-depth overview of all nanomaterial types and their uses in the life sciences. Each volume is dedicated to a specific material class and covers fundamentals, synthesis and characterization strategies, structure-property relationships and biomedical applications. The series brings nanomaterials to the Life Scientists and life science to the Materials Scientists so that synergies are seen and developed to the fullest. Written by international experts of various facets of this exciting field of research, the series is aimed at scientists of the following disciplines: biology, chemistry, materials science, physics, bioengineering, and medicine, together with cell biology, biomedical engineering, pharmaceutical chemistry, and toxicology, both in academia and fundamental research as well as in pharmaceutical companies. VOLUME 5 - Nanostructured Thin Films and Surfaces
Author : Guigen Zhang
Publisher : Springer
ISBN 13 : 3319174797
Total Pages : 108 pages
Book Rating : 4.3/5 (191 download)
Download or read book Nanoscale Surface Modification for Enhanced Biosensing written by Guigen Zhang and published by Springer. This book was released on 2015-06-04 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive overview of electrochemical-based biosensors and their crucial components. Practical examples are given throughout the text to illustrate how the performance of electrochemical-based biosensors can be improved by nanoscale surface modification and how an optimal design can be achieved. All essential aspects of biosensors are considered, including electrode functionalization, efficiency of the mass transport of reactive species, and long term durability and functionality of the sensor. This book also: · Explains how the performance of an electrochemical-based biosensor can be improved by nanoscale surface modification · Gives readers the tools to evaluate and improve the performance of a biosensor with a multidisciplinary approach that considers electrical, electrostatic, electrochemical, chemical, and biochemical events · Links the performance of a sensor to the various governing physical and chemical principles so readers can fully understand how a biosensor with nanoscale modified electrode surface functions.
Author : Ren Zhang (Chemical engineer)
Publisher :
ISBN 13 :
Total Pages : 157 pages
Book Rating : 4.:/5 (1 download)
Download or read book Directed Self-organization of Polymer-grafted Nanoparticles in Polymer Thin Films written by Ren Zhang (Chemical engineer) and published by . This book was released on 2016 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: The controlled organization of nanoparticle (NP) constituents into superstructures of well-defined shape, composition and connectivity represents a continuing challenge in the development of novel hybrid materials for many technological applications. Surface modification of NPs with grafted polymer ligands has emerged as a versatile means to control the interaction and organization of particle constituents in polymer-matrix composite materials. In this study, by incorporating polymer-grafted nanoparticles (PGNPs) into polymeric thin films, we aim to understand and control the spatial organization of PGNPs through the interactions between polymer brush layer and matrix chains. As model systems, we investigate thermodynamic behaviors of polystyrene-tethered gold nanoparticles (denoted as AuPS) dispersed in polymer thin film matrices with identical and different chemical compositions (PS and PMMA, respectively), and evaluate the influence of external perturbation fields on directed organization of nanofillers.With the presence of unfavorable enthalpic interactions between grafted and free polymer chains (i.e. AuPS/ PMMA blend thin films), phase-separated structures are generated upon thermal annealing, characterized with morphologies ranging from discrete droplets to spinodal structures, which is consistent with composition-dependent classic binary polymer blends phase separation. The phase separation kinetics of AuPS/ PMMA blends exhibit distinct features compared to the parent PS/ PMMA homopolymer blends. We further illustrate phase-separated AuPS-rich domains can be directed into unidirectionally aligned anisotropic structures through soft-shear dynamic zone annealing (DZA-SS) process with tunable domain aspect ratios.To exert exquisite control over the shape, size and location of phase-separated PGNP domains, topographically patterned elastomer confinement is introduced to PGNP/ polymer blend thin films during thermal annealing. When the phase-separated lengthscale coincides with confined pattern dimension, long-range ordered submicron-sized AuPS domains are generated in PMMA matrices with dense and well-dispersed nanoparticle distribution. Furthermore, preferential segregation of AuPS nanoparticles at patterned mesa regions can be induced in PS matrices where enthalpic interactions are absent. This selective segregation is achieved due to the local perturbation of grafted chains when confined in a restricted space. The efficiency of this particle segregation process within patterned mesa-trench films can be tuned by changing the relative entropic confinement effects on grafted and matrix chains. This physical pattern directed PGNP organization strategy is applicable to versatile pattern geometries and nanoparticle compositions.
Author : Vikas Mittal
Publisher : John Wiley & Sons
ISBN 13 : 3527670289
Total Pages : 243 pages
Book Rating : 4.5/5 (276 download)
Download or read book Surface Modification of Nanoparticle and Natural Fiber Fillers written by Vikas Mittal and published by John Wiley & Sons. This book was released on 2015-07-06 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of the various methodologies for the surface treatment of different types of inorganic spherical and fibrous fillers, describing ball milling, cationic polymerization, vapor phase grafting, plasma treatment and UV irradiation in detail. In addition, the book connects the resulting composite properties to the modified filler surface properties, thus allowing for a purposeful, application-oriented composite design.
