Download or read book Magnetic Assembly Route to Colloidal Responsive Photonic Nanostructures written by Le He and published by . This book was released on 2013 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Responsive photonic bandgap materials, more commonly known as responsive photonic crystals, which can remotely change their structural colors in response to the external stimuli, have important applications in areas such as color displays, biological and chemical sensors, inks and paints, or many optically active components. Despite the development of different types of colloidal responsive photonic systems, wide use of these systems in practical applications is hampered by low fabrication efficiency, limited tunability of the band gap, a slow response to the external stimuli, and difficulty of integration into existing photonic systems. Through the magnetic assembly route, we attempted to develop new types of responsive photonic nanostructures with improved fabrication efficiency, rapid response, and wide tunability of the band gap. We have demonstrated the rapid assembly of superparamagnetic colloidal particles into various photonic nanostructures. We have also demonstrated that an external magnetic field can be used as an effective stimulus to manipulate the photonic properties of the self-assembled nanostructures by affecting the lattice constant, the orientation, or the crystal structures. As there are many more choices for nonmagnetic colloidal particles with uniform size and optimal refractive index, it would be advantageous to extend this magnetic assembly strategy to nonmagnetic particles. We have demonstrated the use of nanocrystal-based ferrofluids to direct the assembly of nonmagnetic colloidal particles into photonic crystal structures. The process is general, efficient, convenient, and scalable and thus represents a new and practical platform for the fabrication of colloidal crystal-based photonic devices. We have also developed a universal strategy that allows convenient magnetically-driven assembly of general objects in defined locations with high spatial resolution. The process involves immersing a polymer relief pattern in a uniformly magnetized ferrofluid, which modulates the local magnetic fields around the pattern. Nonmagnetic target objects dispersed in the same ferrofluid can then be magnetically assembled at positions defined by the polymer pattern. As the nonmagnetic polymer patterns can be conveniently fabricated at low cost, our method provides a general yet very effective means to assemble a wide range of nanoscale objects, paving the way towards patterning functional microstructures.
Download or read book Responsive Photonic Nanostructures written by Yadong Yin and published by Royal Society of Chemistry. This book was released on 2013-05-24 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic crystal nanostructures, whose photonic properties can be tuned in response to external stimuli, are desired for a wide range of applications in colour displays, biological and chemical sensors, and inks and paints. Until now there is no single resource which gives a complete overview of these exciting smart materials. Responsive Photonic Nanostructures: Smart Nanoscale Optical Materials details the fabrication of photonic crystal structures through self-assembly approaches, general strategies and approaches for creating responsive photonic structures for different responsive systems such as chemical, optical, electrical and magnetic as well as their applications. With contributions from leading experts in the field, this comprehensive summary on Responsive Photonic Nanostructures is suitable for postgraduates and researchers in academia and industry interested in smart materials and their potential applications.
Download or read book Magnetic Nanostructures written by Kamel A. Abd-Elsalam and published by Springer. This book was released on 2019-05-23 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, magnetic nanostructures have gained a remarkable interest for basic research and applied studies. Because of their low cost and ease of manufacture and modification, they have great potential for agricultural and environmental applications. The use of magnetic nanostructures has been proven in a wide range of fields including catalysis, biotechnology, biomedicine, magnetic resonance imaging, agriculture, biosensors, and removal of environmental pollutants, among others. This book includes 16 chapters of collected knowledge, discoveries, and applications in agriculture, soil remediation, and water treatment. It describes the role of nano-agriculture with regard to food security and discusses environmental and agricultural protection concerns. It further offers potential applications of magnetic nanomaterials in the agriculture and food sectors, such as the development of sensors, environment monitoring for wastewater treatment and the remediation of contaminated soils. Increasing crop yield through the use of nanopesticides or nanofertilizers and biosecurity using sensors for detecting pathogens along the entire food chain are discussed as well. This book also brings together various sources of expertise on different aspects magnetic nanostructure application in the agri-food sector and environment remediation. Magnetic nanostructures also have great potential in biotechnological processes, as they can be utilized as a carrier for enzymes during different biocatalytic transformations. Novel magnetic nanomaterials can be used for detection and separation of pesticides from environmental and biological samples. The excellent adsorption capacity of the modified magnetic nanoadsorbents together with other advantages such as reusability, easy separation, environmentally friendly composition, and freedom of interferences of alkaline earth metal ions make them suitable adsorbents for removal of heavy metal ions from environmental and industrial wastes. One of the most important environmental applications of magnetic nanostructures has been in the treatment of water, whether in the remediation of groundwater or through the magnetic separation and/or sensing of contaminants present in various aqueous systems. The integrated combination of these 16 chapters, written by experts with considerable experience in their area of research, provides a comprehensive overview on the synthesis, characterization, application, environmental processing, and agriculture of engineered magnetic nanostructures. Its comprehensive coverage discusses how nanostructure materials interact in plants as well as their potential and useful applications.
Download or read book Fundamentals and Industrial Applications of Magnetic Nanoparticles written by Ketaki Ketan Patankar and published by Woodhead Publishing. This book was released on 2022-03-30 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals and Industrial Applications of Magnetic Nanomaterials highlights industrial applications of magnetic nanoparticles, reviews their rapidly emerging applications, and discusses future research directions. The book emphasizes the structure-property-functionality of magnetic nanoparticles for the most relevant industry applications. After reviewing the fundamentals, industry applications in the biomedical, pharma, environmental, cosmetics and energy industries are explored. Cross-cutting barriers to commercialization are then discussed, along with legal, health and safety implications. Finally, opportunities for enabling a more sustainable future are covered. This book is suitable for researchers and practitioners in academia and industry in materials science and engineering, chemistry and chemical engineering. - Reveals fundamental concepts of magnetic nanoparticles for modern industries and perspectives - Establishes routes for the utilization of magnetic nanoparticles in commercial-scale manufacturing - Discusses opportunities for magnetic nanoparticles to help enable sustainable applications
Download or read book Handbook of Magnetic Hybrid Nanoalloys and their Nanocomposites written by Sabu Thomas and published by Springer Nature. This book was released on 2022-10-27 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive reference work satisfies the need for in-depth and multidisciplinary coverage of the current state of the art of magnetic hybrid nanoalloys (MHNAs) and their polymer and ceramic nanocomposites. MHNAs represent one of the most challenging research areas in modern science and technology. These materials are stiff and strong with remarkable electronic, mechanical, electrical, thermal and biocompatible properties, and a high potential for multifunctional applications ranging from industry to medicine. The peer-reviewed literature is already extensive, witnessing rapid progress in experimental and theoretical studies on fundamental properties as well as various advanced applications. Part 1 covers theory, modelling, and synthesis (growth and alloying mechanisms) of MHNAs. Formation mechanisms of magneto-electric multiferroic materials, magnetic carbon nanotube (CNTs), and perovskite materials, which are a novel class of next-generation multifunctional nanomaterials, are discussed. The second part focuses on characterization techniques for electrical and dielectrical, rheological, biocompatibility, and other properties, as well as applications in the industrial, agricultural, environmental, and biomedical sectors. Finally, life cycle assessment is considered as essential to the development of nanomaterials and nanoproducts from MHNAs. Advanced undergraduate and graduate students, researchers, and other professionals in the fields of materials science and engineering, polymer science, surface science, bioengineering, and chemical engineering will find comprehensive and authoritative information for solving fundamental and applied problems in the characterization and use of these multifunctional nanomaterials.
Download or read book Magnetic Nanoparticles written by Fouad Sabry and published by One Billion Knowledgeable. This book was released on 2022-01-16 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: What Is Magnetic Nanoparticles Magnetic nanoparticles are a class of nanoparticle that can be manipulated using magnetic fields. Such particles commonly consist of two components, a magnetic material, often iron, nickel and cobalt, and a chemical component that has functionality. While nanoparticles are smaller than 1 micrometer in diameter, the larger microbeads are 0.5–500 micrometer in diameter. Magnetic nanoparticle clusters that are composed of a number of individual magnetic nanoparticles are known as magnetic nanobeads with a diameter of 50–200 nanometers. Magnetic nanoparticle clusters are a basis for their further magnetic assembly into magnetic nanochains. The magnetic nanoparticles have been the focus of much research recently because they possess attractive properties which could see potential use in catalysis including nanomaterial-based catalysts, biomedicine and tissue specific targeting, magnetically tunable colloidal photonic crystals, microfluidics, magnetic resonance imaging, magnetic particle imaging, data storage, environmental remediation, nanofluids, optical filters, defect sensor, magnetic cooling and cation sensors. How You Will Benefit (I) Insights, and validations about the following topics: Chapter 1: Magnetic nanoparticles Chapter 2: Nanoparticle Chapter 3: Coprecipitation Chapter 4: Thermal decomposition Chapter 5: Microemulsion Chapter 6: Iron oxide nanoparticle Chapter 7: Magnetic nanoparticles (II) Answering the public top questions about magnetic nanoparticles. (III) Real world examples for the usage of magnetic nanoparticles in many fields. (IV) 17 appendices to explain, briefly, 266 emerging technologies in each industry to have 360-degree full understanding of magnetic nanoparticles' technologies. Who This Book Is For Professionals, undergraduate and graduate students, enthusiasts, hobbyists, and those who want to go beyond basic knowledge or information for any kind of magnetic nanoparticles.
Download or read book Iron Oxides written by Damien Faivre and published by John Wiley & Sons. This book was released on 2016-04-25 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compiling all the information available on the topic, this ready reference covers all important aspects of iron oxides. Following a preliminary overview chapter discussing iron oxide minerals along with their unique structures and properties, the text goes on to deal with the formation and transformation of iron oxides, covering geological, synthetic, and biological formation, as well as various physicochemical aspects. Subsequent chapters are devoted to characterization techniques, with a special focus on X-ray-based methods, magnetic measurements, and electron microscopy alongside such traditional methods as IR/Raman and Mossbauer spectroscopy. The final section mainly concerns exciting new applications of magnetic iron oxides, for example in medicine as microswimmers or as water filtration systems, while more conventional uses as pigments or in biology for magnetoreception illustrate the full potential. A must-read for anyone working in the field.
Download or read book Advances in Microbial Biotechnology written by Pradeep Kumar, PhD. and published by CRC Press. This book was released on 2018-10-03 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last few decades, the rapid and vast development of advanced microbial bioresources and metagenomics techniques has completely transformed the field of microbial biotechnology. Our understanding of microbial diversity, evolutionary biology, and microbial interaction with their animal and plant hosts at molecular level has been revolutionized with an abundance of new research. This new volume, Advances in Microbial Biotechnology: Current Trends and Future Prospect, focuses on the application of microorganisms for several purposes: for plant protection and improvement, for environmental remediation purposes, and for the improvement of human health. Various applications of microorganisms are covered broadly and have been appropriately reflected in depth in different chapters. The book is divided into four major sections: applied microbiology in agriculture microbes in the environment microbes in human health microbes in nanotechnology The book provides insight into the diverse microorganisms that have been explored and exploited in the development of various applications for agricultural improvements. The book also looks at the application of microbes for the removal of pollutants and the recovery of metals and oils. Also discussed is the detection and exploitation of microorganisms in the diagnosis of human diseases, providing possible holistic approaches to health. This new volume will provide a wealth of information on new research on the application of microbial biotechnology today.
Download or read book Nanomaterials for 2D and 3D Printing written by Shlomo Magdassi and published by John Wiley & Sons. This book was released on 2017-02-08 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book to paint a complete picture of the challenges of processing functional nanomaterials for printed electronics devices, and additive manufacturing fabrication processes. Following an introduction to printed electronics, the book focuses on various functional nanomaterials available, including conducting, semi-conducting, dielectric, polymeric, ceramic and tailored nanomaterials. Subsequent sections cover the preparation and characterization of such materials along with their formulation and preparation as inkjet inks, as well as a selection of applications. These include printed interconnects, passive and active modules, as well as such high-tech devices as solar cells, transparent electrodes, displays, touch screens, sensors, RFID tags and 3D objects. The book concludes with a look at the future for printed nanomaterials. For all those working in the field of printed electronics, from entrants to specialized researchers, in a number of disciplines ranging from chemistry and materials science to engineering and manufacturing, in both academia and industry.
Download or read book The Science of Climate Change written by M. R. Islam and published by John Wiley & Sons. This book was released on 2019-04-19 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has long been recognized that science is the pursuit of knowledge, knowledge is power, and power is political. However, the fantasy of science being apolitical is a hallmark legacy of the enlightenment era, an era that romanticized pursuit of knowledge, disconnected from the baggage of power, politics, and dogmatic assertions. Yet, while the age of information has exponentially increased our access to knowledge, we can see, as clearly as ever, that scientific knowledge is neither apolitical nor dogma-free, and it certainly is not disconnected from power. It is hard to imagine another era when the separation between science and politics has been this blurred as it is today. At the same time, it is true that no other topic than climate change has been so politically charged, with one side dominating the scientific narration and branding anyone opposing the mainstream as a “climate change denier,” and the other standing in staunch defiance that climate change exists. In an age of political and scientific turmoil, how can we navigate out way to coming towards a more objective understanding of the scientific issues surrounding the climate change debate? This book presents the current debate of climate change as scientifically futile, on both sides of the scientific, and often, political, spectrum. The climate change debate has become like obesity, cancer, diabetes or opioid addiction, which is to say that the debate should not be if these maladies exist, but rather, what causes them. Instead of looking for the cause and making adjustments to remove those causes from our lifestyle, a combination of the capitalist drive towards mass production and a lack of identifying the roots of the problems, new solutions, or substitutes, have been proposed as "quick fixes" to the problems. This book identifies the root causes of climate change and shows that climate change is real and it is also preventable, but that it can be reversed only if we stop introducing pollutants in the ensuing greenhouse gases. The book brings back common sense and grounds scientists to the fundamentals of heat and mass transfer, while at the same time disconnecting politicking and hysteria from true scientific analysis of the phenomenon of global climate.
Download or read book Responsive Photonic Nanostructures written by Yadong Yin and published by Royal Society of Chemistry. This book was released on 2013 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic crystal nanostructures, whose photonic properties can be tuned in response to external stimuli, are desired for a wide range of applications in colour displays, biological and chemical sensors, and inks and paints. Until now there is no single resource which gives a complete overview of these exciting smart materials. esponsive Photonic Nanostructures: Smart Nanoscale Optical Materials details the fabrication of photonic crystal structures through self-assembly approaches, general strategies and approaches for creating responsive photonic structures for different responsive systems such as chemical, optical, electrical and magnetic as well as their applications. With contributions from leading experts in the field, this comprehensive summary on responsive photonic nanostructures is suitable for postgraduates and researchers in academia and industry interested in smart materials and their potential applications.
Download or read book Nanofabrication written by Zheng Cui (author) and published by Springer Nature. This book was released on with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Magnetic Assembly and Functionalization of One Dimensional Nanominerals in Optical Field written by Meng Fu and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic particles can be oriented along the magnetic field direction to achieve orderly arrangement under the magnetic field. Optical functional materials such as photonic crystal and liquid crystal can be obtained according to magnetic induced ordered nanostructure assembly. One-dimensional natural clay minerals with unique structure, composition and properties can be used as structural base to prepare anisotropic magnetic nanoparticles by decorated with magnetic particles, achieving unique optical functional properties. In this chapter, one-dimensional clay minerals@Fe3O4 nanocomposites were prepared by co-precipitation. The resulting one-dimensional clay minerals@Fe3O4 nanocomposites are superparamagnetic. They can be oriented along the direction of the magnetic field and produce an instantaneously reversible response. These magnetic mineral materials can be dispersed in a dilute acid solution to form stable colloid solutions. These stable colloid solutions produce a similar magnetically controlled liquid crystal with Bragg diffraction under an external magnetic field. Their optical properties are affected by magnetic field intensity, magnetic field direction and solid content. The results show that the functionalization of one-dimensional clay minerals has potential applications in display devices, photonic switches and other fields.
Download or read book Industrial Catalysis written by Jens Hagen and published by John Wiley & Sons. This book was released on 2015-11-02 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in it's 3rd Edition, Industrial Catalysis offers all relevant information on catalytic processes in industry, including many recent examples. Perfectly suited for self-study, it is the ideal companion for scientists who want to get into the field or refresh existing knowledge. The updated edition covers the full range of industrial aspects, from catalyst development and testing to process examples and catalyst recycling. The book is characterized by its practical relevance, expressed by a selection of over 40 examples of catalytic processes in industry. In addition, new chapters on catalytic processes with renewable materials and polymerization catalysis have been included. Existing chapters have been carefully revised and supported by new subchapters, for example, on metathesis reactions, refinery processes, petrochemistry and new reactor concepts. "I found the book accesible, readable and interesting - both as a refresher and as an introduction to new topics - and a convenient first reference on current industrial catalytic practise and processes." Excerpt from a book review for the second edition by P. C. H. Mitchell, Applied Organometallic Chemistry (2007)
Download or read book Biocompatible Hybrid Oxide Nanoparticles for Human Health written by Inna V. Melnyk and published by Elsevier. This book was released on 2019-06-30 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biocompatible Hybrid Oxide Nanoparticles for Human Health: From Synthesis to Applications explores the synthesis, structure, properties and applications of functionalized oxide nanoparticles. The books shows the applications of materials depending on their composition and structure, with a focus on silicon, titanium and iron oxides, each of which was chosen because of their unique features, including silica because it is chemically resistant to most organic solvents, harmless to living organisms, can thicken flowable formulations, and increase the strength of materials, titania for its unique chemical, optical, electrophysical and bactericidal properties, and iron-containing materials because they possess important magnetic properties. - Shows how oxide nanoparticles are being used to solve current problems in the fields of environmental protection, medicine, and in the creation of "smart" materials - Includes case studies that explore the major characteristics and applications of silica, titania and iron oxide nanomaterials - Discusses the use of biocompatible oxide nanostructures in the development of new sensing technology
Download or read book Self Assembly of Nanostructures and Patchy Nanoparticles written by Shafigh Mehraeen and published by BoD – Books on Demand. This book was released on 2020-11-04 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Top-down approaches are currently the main contributor of fabricating microelectronic devices. However, the prohibitive cost of numerous technological steps in these approaches is the main obstacle to further progress. Furthermore, a large number of applications necessitate fabrication of complex and ultra-small devices that cannot be made using these approaches. New approaches based on natural self-assembly of matter need to be developed to allow for fabrication of micro and nanoelectronic devices. Self-assembly of nanostructures is a dynamic field, which explores physics of these structures and new ways to fabricate them. However, the major problem is how to control the properties of the nanostructures resulting from low dimensionality. This book presents recent advances made to address this problem, and fabricate nanostructures using self-assembly.
Download or read book Structural Colors in the Realm of Nature written by Shuichi Kinoshita and published by World Scientific. This book was released on 2008 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural colorations originate from self-organized microstructures, which interact with light in a complex way to produce brilliant colors seen everywhere in nature. Research in this field is extremely new and has been rapidly growing in the last 10 years, because the elaborate structures created in nature can now be fabricated through various types of nanotechnologies. Indeed, a fundamental book covering this field from biological, physical, and engineering viewpoints has long been expected.Coloring in nature comes mostly from inherent colors of materials, though it sometimes has a purely physical origin such as diffraction or interference of light. The latter, called structural color or iridescence, has long been a problem of scientific interest. Recently, structural colors have attracted great interest because various photonic architectures, now developing in modern technologies, have been spontaneously created in the self-organization process and have been extensively used as one of the important visual functions. In this book, the fundamental optical properties underlying structural colors are explained, and these mysteries of nature are surveyed from the viewpoint of biological diversity and according to their sophisticated structures. The book proposes a general principle of structural colors based on the structural hierarchy and presents up-to-date applications.
