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This thesis was focused on the synthesis of magnetic nanoparticles of iron oxide and cobalt oxide and core-shell nanoparticles, consisting of a cobalt oxide coated iron oxide and on the development of composite nanomaterials - nanostructures carbon /metal oxide nanoparticles - for applications in the biomedical field and the energy. For the synthesis of NPs, the shape and size of NPs are dependent of the reaction conditions, which further affect their magnetic properties. Meanwhile, simulation showed that stearate chains can desorb more easily from iron atoms and release to form seeds than from cobalt atoms, which might explain distinctive behavior between the bath complexes. Regarding nanostructures carbon/metal oxide nanoparticles hybrid materials, the properties of the filled magnetic CNTs as heat mediator for photothermal ablation and as contrast agent for MRI were then evaluated and promising results have been obtained. Last, new composite materials (Nb205 nanoparticles/graphene or NTCs) were synthesized and promising results were obtaines in lithium battery tests : their use as anode allowed obtaining reversible capacities of 260 mAh/g.
Heterostructured nanoparticles have the capability for a broad range of novel and enhanced properties, which leads to appealing biomedical and environmental applications. This timely new book addresses the design and preparation of multiphase nanomaterials with desired size, shape, phase composition, and crystallinity, as well as their current applications. It emphasizes key examples to motivate deeper studies, including nanomaterial-based hyperthermia treatment of cancer, nanohybrids for water purification, nanostructures used in the removal or detection of bioagents from waste water, and so on. Features Presents state of the art research on heterostructured nanomaterials, from their synthesis and physiochemical properties to current environmental and biological applications. Includes details on toxicity and risk assessment of multifunctional nanomaterials. Discusses recent developments and utilization in healthcare by leading experts. Introduces the main features of functionalization of nanomaterials in terms of desired size, shape, phase composition, surface functionalization/coating, toxicity, and geometry. Emphasizes practical applications in the environmental and biomedical sectors.
Magnetic Nanoparticle-Based Hybrid Materials: Fundamentals and Applications introduces the principles, properties, and emerging applications of this important materials system. The hybridization of magnetic nanoparticles with metals, metal oxides and semiconducting nanoparticles may result in superior properties. The book reviews the most relevant hybrid materials, their mechanisms and properties. Then, the book focuses on the rational design, controlled synthesis, advanced characterizations and in-depth understanding of structure-property relationships. The last part addresses the promising applications of hybrid nanomaterials in the real world such as in the environment, energy, medicine fields. Magnetic Nanoparticle-Based Hybrid Materials: Fundamentals and Applications comprehensively reviews both the theoretical and experimental approaches used to rapidly advance nanomaterials that could result in new technologies that impact day-to-day life and society in key areas such as health and the environment. It is suitable for researchers and practitioners who are materials scientists and engineers, chemists or physicists in academia and R&D. Provides in-depth information on the basic principles of magnetic nanoparticles-based hybrid materials such as synthesis, characterization, properties, and magnon interactions Discusses the most relevant hybrid materials systems including integration of metals, metal oxides, polymers, carbon and more Addresses the emerging applications in medicine, the environment, energy, sensing, and computing enabled by magnetic nanoparticles-based hybrid materials
Magnetic Nanoparticles and Polymer Nanocomposites: Fundamentals and Biological, Environmental and Energy Applications focuses on the manufacturing and design of innovative magnetic polymeric nanocomposite materials for a broad range of different applications. These materials have truly outstanding and sustainable properties unlike other composites because they are combined with both organic (polymer matrix) and inorganic (semiconductor nanoparticles) materials to form a sustainable composite material. The book's focus is on magnetic semiconductor and polymer nanocomposites made from bioresorbable and biocompatible polymers, modified with magnetic nanoparticles. This book provides detailed knowledge on the modern research application of magnetic semiconductor and polymeric nanocomposites that have tremendous commercial value. In addition, these nanocomposite materials are also a good source for the renewable energy-based industry. Covers magnetic nanoparticles and polymer nanocomposites in environmental, renewable energy, water treatment, energy storage and biomedical applications Provides fundamental knowledge on design, synthesis, properties investigation, applications and manufacturing Emphasizes recent advances on magnetic nanoparticles and polymer nanocomposites
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
This book elaborates on the fabrication of organic-inorganic hybrid nanomaterials, their advantages, self-assembly and their applications in diverse fields of energy, biotechnology, biomedical and environment. The contents provide insight into tools, tricks and challenges associated with techniques of fabrication and future challenges and risks. This book also discusses the properties of modern hybrid nanomaterials and their performance, durability, reproducibility and sensitivity. It will be useful for students and researchers in the area of nanotechnology, science, engineering and environmental chemistry. This volume will also be useful for researchers and professionals working on nanohybrid materials.
This book explores some of the latest and recent advances in the synthesis, characterization and applications of magnetic nanomaterials. It starts with an overview of magnetic nanomaterials, followed by a list of their synthesis and characterization methods. The book shows the potential of magnetic materials in different applications, including theranostic nanomedicine, heavy metals detection, dyes sensing, solar cells, wastewater treatment, decontamination of soil, and detection and monitoring of toxic gases. Moreover, it explores their use as drug and gene delivery agents, their biosafety and bioregulation facets, tissue engineering applications, and their potential for combating pathogens
The concept of nanotechnology is attributed to Nobel prize winner Richard Feynman who gave a very famous, visionary in 1959 (published in 1960) during one of his lectures, saying: "the principles of physic, as far as I can see, do not speak against the possibility of maneuvering things atom by atom". At the time, Feynman's words were received as pure science fiction". Today, we have instruments that allow precisely what Feynman had predicted: creating structures by moving atoms individually. In principle, the ultimate results of this research study leads to the synthesis of magnetic and porous carbon based nanoparticles as the material and tool for biomedical applications. Currently, we are in a battle with a dangerous and destructive diseases such as cancers, and nanotechnology is then presented as a tool that can help us win control. This work is to support medical and other applications of nanotechnology specifically aimed to prepare carbon based nanoparticles. Magnetic nanoparticles are being of great interest because of their unique properties especially in drug delivery, hyperthermia, magnetic resonance imaging and cell separation. In many clinical situations, medication doses are oversized as a result of impaired drug absorption or tissue unspecific delivery. The ultimate goal of magnetically controlled drug delivery and drug therapy is to selectively delivering drug molecules to the diseased site without a concurrent increase in its level in healthy tissues. Consequently, in this research study the objective is to develop an approach to control the synthesis of carbon encapsulated iron nanoparticles in the form of core@shell nanostructure. Accordingly, understanding and revealing the growth mechanism of carbon encapsulated iron nanoparticles is necessary by doing characterization. Furthermore, engineering of suitable carbon based nanoparticles for biomedical applications has been also considered. Common challenges for synthesis of carbon encapsulated iron nanoparticles are improving uniformity, enhancing coating protection and controlling particles compositions, shape and core/shell sizes. In addition, due to the lack of comprehensive understanding of the optimal parameters and formation mechanism most of the current fabrication process are empirical, which means a large number of experimental trials are required to optimize any given process. Since the last two decades, arc discharge technique leads to the discovery of two important carbon based materials, nanotubes and fullerenes. However, the formation of nanomaterials by thermal plasma still remains poorly understood and need further investigation. The focus in this study is on synthesis of carbon based nanoparticles by arc discharge method, particularly carbon encapsulated iron nanoparticles in the form of Core@Shell nanostructure. An arc discharge reactor that was patented by FEMAN group was used with slight modification. The growth processes were elucidated through many experiments and characterizations. Precise control over carbon encapsulated iron nanoparticles were addressed. In addition, a new carbon encapsulated multi iron nanoparticles is introduced. The results have been lead to new elements for understanding the growth mechanism of iron core and carbon shell nanostructure. In order to improve the synthesis process, a new modified arc discharge reactor was developed and implemented. Two new materials are prepared through a new facile synthetic method; carbon nanoparticles decorated by fullerenes and spherical porous carbon microparticles. Last but not least, in this research medical application requirements have been taken into account to prepare suitable nanoparticle.
Functionalized magnetic nanomaterials are used in data storage, biomedical, environmental, and heterogeneous catalysis applications but there remain developmental challenges to overcome. Nanostructured Magnetic Materials: Functionalization and Diverse Applications covers different synthesis methods for magnetic nanomaterials and their functionalization strategies and highlights recent progress, opportunities, and challenges to utilizing these materials in real-time applications. Reviews recent progress made in the surface functionalization of magnetic nanoparticles Discusses physico-chemical characterization and synthesis techniques Presents the effect of the external magnetic field Details biological, energy, and environmental applications as well as future directions This reference will appeal to researchers, professionals, and advanced students in materials science and engineering and related fields.
Offering the latest information in magnetic nanoparticle (MNP) research, Magnetic Nanoparticles: From Fabrication to Clinical Applications provides a comprehensive review, from synthesis, characterization, and biofunctionalization to clinical applications of MNPs, including the diagnosis and treatment of cancers. This book, written by some of the most qualified experts in the field, not only fills a hole in the literature, but also bridges the gaps between all the different areas in this field. Translational research on tailored magnetic nanoparticles for biomedical applications spans a variety of disciplines, and putting together the most significant advances into a practical format is a challenging task. Balancing clinical applications with the underlying theory and foundational science behind these new discoveries, Magnetic Nanoparticles: From Fabrication to Clinical Applications supplies a toolbox of solutions and ideas for scientists in the field and for young researchers interested in magnetic nanoparticles.