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Formation Characterization And Applications Of Gold Nanoparticles And Surface Modified Gold
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Book Synopsis Formation, Characterization and Applications of Gold Nanoparticles and Surface-modified Gold by : Janelle Dawn Secl Newman
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:
Book Synopsis Gold and Silver Nanoparticles by : Suban K. Sahoo
Download or read book Gold and Silver Nanoparticles written by Suban K. Sahoo and published by Elsevier. This book was released on 2023-01-20 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gold and Silver Nanoparticles: Synthesis and Applications provides detailed information on the preparation and utilization of Au- and Ag-based nanoparticles in a range of novel areas. Gold and silver nanoparticles offer a range of interesting properties, including unique size-dependent optoelectronic properties, chemical stability and biocompatibility, ease of synthesis and surface modification, excellent resistance to corrosion, and catalytic properties, hence paving the way to a wide range of cutting-edge applications with continual advances and innovations. Sections introduce gold and silver nanoparticles, fundamental theory, synthesis, and characterization techniques before focusing on requirements and preparation methods. Specific applications areas, such as surface-enhanced Raman spectroscopy (SERS), sensing and biosensing, imaging, drug and gene delivery, disease diagnosis, catalysis, and optoelectronic device fabrication are covered. Finally, synthesis and applications of platinum- and palladium-based nanoparticles are discussed. This is a valuable resource for researchers and advanced students across nanoscience and nanotechnology, chemistry, and materials science, as well as scientists, engineers, and R&D professionals with an interest in noble metal nanomaterials for a range of industrial applications. - Explains theory, synthesis, characterization, and properties of Au- and Ag- based nanoparticles - Explores a range of novel applications across biomedicine, optoelectronics, and other areas - Analyzes the latest developments in the field and considers noble metal nanoparticles beyond gold and silver
Download or read book Gold Nanoparticles written by Xiong Liu and published by . This book was released on 2009 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation presents a systematic study on gold nanoparticles: from their chemical synthesis, modification of surface functionalities, optical properties studies with emphasis on the absorption and scattering properties, to applications of gold nanoparticles in biomolecular detection, imaging and photothermal therapy. In chapter 2, we studied the kinetics of gold nanoparticle growth under Brust-Shiffrin reaction conditions. In chapter 3, we further examined the reaction mechanism and growth kinetics of gold nanoparticles using oleylamine as both a reducing reagent and particle growth passivation ligand. From these two projects, important understanding was revealed on gold nanoparticle formation and growth mechanism. Chapter 4 describes the synthesis of a monofunctional gold nanoparticle through a solid phase place exchange reaction. From Chapter 5, we moved to the optical property study of gold nanoparticles, particularly the absorption and scattering phenomenon. In this work a systematic analysis on the extinction coefficient of gold nanoparticles was performed, providing meaningful references for applications based on optical absorption properties of gold nanoparticles. In Chapter 6 and Chapter 7, we developed a one-step homogeneous immunoassay for protein detection and analysis based on the strong light scattering of gold nanoparticles and dynamic light scattering detection technique. In Chapter 8, we further improved the stability of gold nanoparticle bioconjugates using a poly(ethylene glycol)-coated gold nanoparticles and further tested this nanoparticle in the one-step homogeneous immunoassay. Finally in Chapter 9, we demonstrated the application of gold nanoparticles for in vitro bioimaging and photothermal therapy of a lung cancer cell. In summary, this dissertation presents a comprehensive study on the synthesis, surface modification, property study of gold nanoparticles and their applications in biomolecular imaging and analysis.
Book Synopsis Nanoparticles in Biology and Medicine by : Mikhail Soloviev
Download or read book Nanoparticles in Biology and Medicine written by Mikhail Soloviev and published by Methods in Molecular Biology. This book was released on 2012-07-13 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: The modern fascination with micro- and nano-sized materials can actually be traced back further to the 1960s and ‘70s when the first few reported attempts were made to use nanoparticles for controlled drug delivery. In Nanoparticles in Biology and Medicine: Methods and Protocols, experts in the field present a wide range of methods for synthesis, surface modification, characterization, and application of nano-sized materials (nanoparticles) in life science and medical fields, mostly for drug delivery. The methods presented cover all stages of nanoparticle manufacturing, modification, analysis, and applications. Written in the highly successful Methods in Molecular BiologyTM series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Comprehensive and cutting-edge, Nanoparticles in Biology and Medicine: Methods and Protocols will help the beginner become familiar with this fascinating field and will provide scientists at all levels of expertise with easy-to-follow practical advice needed to make, modify, and analyze nanoparticles of their choice and to use them in a wide range of biomedical and pharmaceutical applications, including functional protein studies, drug delivery, immunochemistry, imaging, and many others.
Book Synopsis Synthesis, Characterization, and Self-Assembly of Gold Nanorods and Nanoprisms by : Kristina L. Tran
Download or read book Synthesis, Characterization, and Self-Assembly of Gold Nanorods and Nanoprisms written by Kristina L. Tran and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The unique properties of gold nanoparticles make them excellent candidates for applications in electronics, sensing, imaging, and photothermal therapy. Though abundant literature exists for isotropic gold nanoparticles, work on nanoparticles of different shapes has been gaining interest recently. Anisotropic gold nanoparticles, such as nanorods and nanoprisms, have tunable optical properties in the visible and near-infrared regions. Through synthesis and surface modification, the production of various shapes of these gold nanoparticles can be controlled to meet different applications. Two different types of gold nanorods were used in this thesis. The first type was stabilized with cetyltrimethylammonium bromide (CTAB) and had aspect ratios of 3-4 (defined as the nanorod length divided by the diameter). The second type was synthesized using CTAB and benzyldimethylhexadecylammonium chloride (BDAC) in a binary surfactant system which produced aspect ratios greater than 4. The nanorods were characterized with UV-Vis spectroscopy and transmission electron microscopy (TEM). Two types of bowl-shaped macrocyclic compounds called resorcinarenes were used to direct self-assembly of the nanorods. The first type of resorcinarene (R2S) consisted of thiol(SH)-terminated alkyl chains on both rims. The second type (R1S) contained thiol-terminated alkyl chains on only one rim. The monolayer formation of these resorcinarenes on planar gold surfaces was studied and characterized by FTIR spectroscopy. Resorcinarene-mediated assembly of gold nanorods was monitored with UV-Vis spectroscopy, dynamic light scattering (DLS), and TEM. In addition to gold nanorods, gold nanoprisms were synthesized through a kinetically-controlled reduction route in the presence of CTAB. The linking of nanoprisms using resorcinarenes was also explored.
Book Synopsis Gold Nanoparticles by : Mohammed Muzibur Rahman
Download or read book Gold Nanoparticles written by Mohammed Muzibur Rahman and published by BoD – Books on Demand. This book was released on 2019-02-13 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gold Nanoparticles - Reaching New Heights contains recent research on the preparation, characterization, fabrication, and potential of optical and biological applications of gold nanoparticles (AuNPs). It is promising novel research that has received a lot of interest over the last few decades. It covers advanced topics on optical, physical, medicinal, and biological applications of AuNPs. Development of green nanotechnology is generating the interest of researchers towards the synthesis of eco-friendly, safe, non-toxic applications, which can be used for manufacture at a large scale. These are simple, cost-effective, stable, enduring, and reproducible aqueous room temperature synthesis applications to obtain the self-assembly of AuNPs. This potentially unique work offers various approaches to R
Download or read book Gold Nanoparticles written by P. E. Chow and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to their attractive electronic, optical, and thermal properties; gold nanoparticles (AuNPs) have emerged with great interest, as well as catalytic properties, in the fields of physics, chemistry, biology, medicine, material science and some interdisciplinary fields. This book examines a broad range of applications of gold nanoparticles such as: gold nanoparticles as an antigen carrier and as an adjuvant; laser synthesis of gold nanoparticles and the control over their properties; gold on carbon catalysts; gold nanoparticles as a delivery vehicle in biomedical applications; solution and solid-state methods to prepare Au nanoparticles; gold nanoparticles and their in-vitro property, the usefulness of gold nanoparticles in emerging infectious disease situations and a host of others.
Book Synopsis Surface Modification of Nanoparticles for Targeted Drug Delivery by : Yashwant V Pathak
Download or read book Surface Modification of Nanoparticles for Targeted Drug Delivery written by Yashwant V Pathak and published by Springer. This book was released on 2019-03-11 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book is the only one to discuss various new techniques developed to enhance the application of nanoparticulate drug delivery systems using surface modification of nanoparticles. The understanding of the surface characteristics nano-particles is growing significantly with the advent of new analytical techniques. Polymer chemistry is contributing to the development of many new versatile polymers which have abilities to accommodate many different, very reactive chemical groups, and can be used as a diagnostic tool, for better targeting, for more effective therapeutic results as well as for reducing the toxic and side effects of the drugs. Surface modification of such polymeric nanoparticles has been found by many scientists to enhance the application of nanoparticles and also allows the nano particles to carry specific drug molecule and disease /tumor specific antibodies which refine and improve drug delivery. Surface Modification of Nanoparticles for Targeted Drug Delivery is a collection essential information with various applications of surface modification of nanoparticles and their disease specific applications for therapeutic purposes.
Book Synopsis Gold Nanoparticles for Physics, Chemistry and Biology by : Catherine Louis
Download or read book Gold Nanoparticles for Physics, Chemistry and Biology written by Catherine Louis and published by World Scientific. This book was released on 2012 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fascination with gold is a story which spans millennia, however scientists have recently found a new interest for gold when it is divided into miniscule grains, such as gold nanoparticles. This scientific enthusiasm started in various fields of science in the middle of the 1980s and the present book offers a panorama of the major scientific achievements obtained with gold nanoparticles.Various topics are reviewed such as: gold nanoparticle preparation methods, their plasmon resonance and thermo-optical properties, their catalytic properties, their use in biology and medicine as well as their possible toxicity and, finally, their future technological applications. The book also contains an in-depth study of the use of gold nanoparticles throughout the ages, starting from times where the concept of nanoparticles was beyond the realm of human imagination. All these topics are presented by world-class scientists within a set of self-contained chapters.This book may be used as an advanced textbook by graduate students and scientists who need an introduction to gold nanoparticles. It is also suitable for experts in the related areas of chemistry, biology, material science, optics and physics, who are interested in broadening their knowledge and who wish to have an overview of the subject. Each chapter gradually leads the reader from the basics of a topic towards some of the current scientific challenges in the area. The necessary background material to achieve a solid understanding of each topic and the scientific literature to go further in the field is provided.
Book Synopsis Metal Nanoparticles in Pharma by : Mahendra Rai, Ph.D
Download or read book Metal Nanoparticles in Pharma written by Mahendra Rai, Ph.D and published by Springer. This book was released on 2017-11-14 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completely dedicated to the biomedical applications of metal nanoparticles, this book covers the different toxicity problems found in healthcare situations and also provides comprehensive info on the use of metal nanoparticles in treating various diseases. Metal Nanoparticles in Pharma is the first edited volume to set up the discussion for a clinical setting and to target a pharmaceutical audience of academic and industry-based researchers.
Book Synopsis Bioconjugate Techniques by : Greg T. Hermanson
Download or read book Bioconjugate Techniques written by Greg T. Hermanson and published by Academic Press. This book was released on 2010-07-26 with total page 1233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioconjugate Techniques, 2nd Edition, is the essential guide to the modification and cross linking of biomolecules for use in research, diagnostics, and therapeutics. It provides highly detailed information on the chemistry, reagent systems, and practical applications for creating labeled or conjugate molecules. It also describes dozens of reactions with details on hundreds of commercially available reagents and the use of these reagents for modifying or cross linking peptides and proteins, sugars and polysaccharides, nucleic acids and oligonucleotides, lipids, and synthetic polymers. A one-stop source for proven methods and protocols for synthesizing bioconjugates in the lab Step-by-step presentation makes the book an ideal source for researchers who are less familiar with the synthesis of bioconjugates More than 600 figures that visually describe the complex reactions associated with the synthesis of bioconjugates Includes entirely new chapters on the latest areas in the field of bioconjugation as follows: Microparticles and nanoparticlesSilane coupling agentsDendrimers and dendronsChemoselective ligationQuantum dotsLanthanide chelatesCyanine dyesDiscrete PEG compoundsBuckyballs,fullerenes, and carbon nanotubesMass tags and isotope tagsBioconjugation in the study of protein interactions
Book Synopsis Catalysis By Gold by : Geoffrey C Bond
Download or read book Catalysis By Gold written by Geoffrey C Bond and published by World Scientific. This book was released on 2006-08-15 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gold has traditionally been regarded as inactive as a catalytic metal. However, the advent of nanoparticulate gold on high surface area oxide supports has demonstrated its high catalytic activity in many chemical reactions. Gold is active as a heterogeneous catalyst in both gas and liquid phases, and complexes catalyse reactions homogeneously in solution. Many of the reactions being studied will lead to new application areas for catalysis by gold in pollution control, chemical processing, sensors and fuel cell technology. This book describes the properties of gold, the methods for preparing gold catalysts and ways to characterise and use them effectively in reactions. The reaction mechanisms and reasons for the high activities are discussed and the applications for gold catalysis considered./a
Book Synopsis Synthesis and Characterization of Nanoparticles by : Stephan Dankesreiter
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 [...]
Book Synopsis Covalently Functionalized Gold Nanoparticles by : Michael Robert Ivanov
Download or read book Covalently Functionalized Gold Nanoparticles written by Michael Robert Ivanov and published by . This book was released on 2011 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The gold nanoparticle core composition, shape, size, self assembled monolayer (SAM) formation kinetics, and SAM ligand packing density are all evaluated for thioctic acid, 6-mercaptohexanoic acid, or 11-mercaptoundecanoic acid monolayers. Transmission electron microscopy (TEM), 1 H NMR, extinction spectroscopy, zeta potential, X-ray photoelectron spectroscopy (XPS), and flocculation studies are used to assess the morphology, surface chemistry, optical properties, surface charge, SAM packing density, and effective stability of carboxylated nanoparticles, respectively. Using these well-characterized nanostructures, applications of gold nanoparticle pseudostationary phases in capillary electrophoresis is studied.
Book Synopsis Catalytic Application of Nano-Gold Catalysts by : Neeraj Kumar Mishra
Download or read book Catalytic Application of Nano-Gold Catalysts written by Neeraj Kumar Mishra and published by BoD – Books on Demand. This book was released on 2016-08-31 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gold, considered catalytically inactive for a long time, is now a fascinating partner of modern chemistry, as scientists such as Bond, Teles, Haruta, Hutchings, Ito and Hayashi opened new perspectives for the whole synthetic chemist community. Recently gold has attracted significant attention due to its advantageous characteristics as a catalytic material and since it allows easy functionalization with biologically active molecules. In this context, when gold is prepared as very small particles, it turns out to be a highly active catalyst. However, such a phenomenon completely disappears when the gold particle size grows into the micrometer range. Therefore, the preparation for obtaining an active gold catalyst is so important. The primary objective of this book is to provide a comprehensive overview of gold metal nanoparticles and their application as promising catalysts.
Book Synopsis Gold and Silver Nanoparticles by : Susie Eustis
Download or read book Gold and Silver Nanoparticles written by Susie Eustis and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new method is developed referred to as Gold Nanorod Optical Modeling Equations (GNOME) for determining the average aspect ratio of gold nanorods in solution. In this method, the observed inhomogeneously broadened optical spectrum is fitted to a number of calculated homogeneously broadened spectra with different aspect ratios having different contributions. From this method, the average aspect ratio is determined. This is a more accurate than the presently used method of TEM. The surface plasmon enhanced fluorescence spectra of gold nanorods are calculated as a function of the aspect ratio and compared to experimental spectra. In this calculation, the inclusion of both the aspect ratio distribution calculated from the GNOME method as well as the incorporation of the intrinsic fluorescence of bulk gold are found necessary to model the enhanced fluorescence spectrum of gold nanorods using previously published equations. The enhanced spectrum decreases rapidly as the aspect ratio increases and the surface plasmon band shift away from the gold interband absorption. Photochemical methods are used to synthesize silver nanoparticles on silica surfaces and gold nanoparticles in solution. The formation silver nanoparticles utilizes benzophenone as a photosensitizing agent to initiate the reaction. The effects of the light source and irradiation time are investigated. The presence of different forms of silica are investigated in the formation of metal nanoparticles. This method produced silver nanoparticles on silica that can be in the form of film or powder that are useful in heterogeneous catalysis. Direct photochemical methods are applied to generate gold nanoparticles from chloroauoroic acid in ethylene glycol in the presence of polyvinylpyrrolidone as a capping material. A detailed mechanism of the formation of the gold nanoparticle is determined. This is done by following the kinetics of formation of the gold nanoparticles after irradiation under different conditions. The disproportionation of the gold ions as well as their reduction by ethylene glycol is found to be important in the formation of the nanoparticles. Photochemical synthesis provides room temperature techniques to generate metal nanoparticles in a variety of environments.
Book Synopsis Nanoscience and Plant–Soil Systems by : Mansour Ghorbanpour
Download or read book Nanoscience and Plant–Soil Systems written by Mansour Ghorbanpour and published by Springer. This book was released on 2017-02-14 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides in-depth reviews of the effects of nanoparticles on the soil environment, their interactions with plants and also their potential applications as nanofertilizers and pesticides. It offers insights into the current trends and future prospects of nanotechnology, including the benefits and risks and the impact on agriculture and soil ecosystems. Individual chapters explore topics such as nanoparticle biosynthesis, engineered nanomaterials, the use of nanoclays for remediation of polluted sites, nanomaterials in water desalination, their effect on seed germination, plant growth, and nutrient transformations in soil, as well as the use of earthworms as bioremediating agents for nanoparticles. It is a valuable resource for researchers in academia and industry working in the field of agriculture, crop protection, plant sciences, applied microbiology, soil biology and environmental sciences.
