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Engineering Superparamagnetic Iron Oxide Nanoparticles for Environmental Applications

Engineering Superparamagnetic Iron Oxide Nanoparticles for Environmental Applications PDF Author: Wenlu Li
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 204

Book Description
Engineered, superparamagnetic iron oxide nanoparticles (IONPs) have drawn considerable research attention for a broad range of applications based on tunable size and shape, surface chemistries, and magnetic properties. For successful aqueous-based, environmental applications, it is necessary to overcome two, fundamental, yet interconnected challenges: 1) Design and synthesize material which provides information about or effectively induces a relevant reactive pathway at/to the targeted regimes/species, while 2.) Simultaneously, controlling particle stability in/at relevant environmental matrixes/interfaces. In this work, highly monodispersed, single domain, superparamagnetic IONPs, were developed via high temperature decomposition of iron carboxylate salts in an organic phase, with material size (8-40 nm) and morphology precisely controlled through the ratio of precursors, heating rates, reaction times, and addition of cosurfactants (additives). For aqueous evaluation and application, materials were rendered water stable through the development of 13 unique surface bilayer strategies, which were focused on a tunable series of ionic surfactants, varying in chain length, functional group, hydrophobicity, and surface charge. For each bilayer strategy, 8 nm, spherical IONP suspensions were fully characterized with regard to transfer efficiency (into the aqueous phase), aggregation kinetics (varying ionic types/strengths), and long-term aqueous stabilities. Further, for IONPs with oleic acid bilayer coatings, before and after surface (oxidative) aging, extensive evaluation of surface/collector deposition and release behaviors and processes over a range of water chemistries and surface types (hydrophilic vs. hydrophobic) are described using quartz crystal microbalance (QCM) based techniques, among others, highlighting critical aspects of interfacial dynamics for these systems. Finally, IONPs are demonstrated as a platform material for uranyl sorption and separation from water. Specifically, (bilayer) surface optimized, 8-30 nm monodisperse IONPs demonstrate ultra-high uranyl sorption capacities (>50% by wt/wt in some cases). Synchrotron-based X-ray absorption spectroscopic (EXAFS and XANES) analyses indicate that particle size and stabilizing surface functional group(s) significantly affect binding mechanism(s) (e.g. redox based reactions).

Engineering Superparamagnetic Iron Oxide Nanoparticles for Environmental Applications

Engineering Superparamagnetic Iron Oxide Nanoparticles for Environmental Applications PDF Author: Wenlu Li
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 204

Book Description
Engineered, superparamagnetic iron oxide nanoparticles (IONPs) have drawn considerable research attention for a broad range of applications based on tunable size and shape, surface chemistries, and magnetic properties. For successful aqueous-based, environmental applications, it is necessary to overcome two, fundamental, yet interconnected challenges: 1) Design and synthesize material which provides information about or effectively induces a relevant reactive pathway at/to the targeted regimes/species, while 2.) Simultaneously, controlling particle stability in/at relevant environmental matrixes/interfaces. In this work, highly monodispersed, single domain, superparamagnetic IONPs, were developed via high temperature decomposition of iron carboxylate salts in an organic phase, with material size (8-40 nm) and morphology precisely controlled through the ratio of precursors, heating rates, reaction times, and addition of cosurfactants (additives). For aqueous evaluation and application, materials were rendered water stable through the development of 13 unique surface bilayer strategies, which were focused on a tunable series of ionic surfactants, varying in chain length, functional group, hydrophobicity, and surface charge. For each bilayer strategy, 8 nm, spherical IONP suspensions were fully characterized with regard to transfer efficiency (into the aqueous phase), aggregation kinetics (varying ionic types/strengths), and long-term aqueous stabilities. Further, for IONPs with oleic acid bilayer coatings, before and after surface (oxidative) aging, extensive evaluation of surface/collector deposition and release behaviors and processes over a range of water chemistries and surface types (hydrophilic vs. hydrophobic) are described using quartz crystal microbalance (QCM) based techniques, among others, highlighting critical aspects of interfacial dynamics for these systems. Finally, IONPs are demonstrated as a platform material for uranyl sorption and separation from water. Specifically, (bilayer) surface optimized, 8-30 nm monodisperse IONPs demonstrate ultra-high uranyl sorption capacities (>50% by wt/wt in some cases). Synchrotron-based X-ray absorption spectroscopic (EXAFS and XANES) analyses indicate that particle size and stabilizing surface functional group(s) significantly affect binding mechanism(s) (e.g. redox based reactions).

Superparamagnetic Iron Oxide Nanoparticles

Superparamagnetic Iron Oxide Nanoparticles PDF Author: Morteza Mahmoudi
Publisher:
ISBN: 9781617286315
Category : Ferric oxide
Languages : en
Pages : 225

Book Description


Superparamagnetic Iron Oxide Nanoparticles

Superparamagnetic Iron Oxide Nanoparticles PDF Author: Morteza Mahmoudi
Publisher:
ISBN: 9781616689643
Category : Ferric oxide
Languages : en
Pages : 0

Book Description
In recent years, the fabrication of nanoparticles and exploration of their properties have attracted the attention of physicists, chemists, biologists and engineers. Interest in nanoparticles arise from the fact that the mechanical, chemical, electrical, optical, magnetic, electro-optical and magneto-optical properties of these particles are different from their bulk properties and depend on the particle size. There are numerous areas where nanoparticulate systems are of scientific and technological interest. This book reviews research on the various components of superparamagnetic iron oxide nanoparticles.

Iron Oxide Nanoparticles for Biomedical Applications

Iron Oxide Nanoparticles for Biomedical Applications PDF Author: Sophie Laurent
Publisher: Elsevier
ISBN: 0081012756
Category : Technology & Engineering
Languages : en
Pages : 336

Book Description
Iron Oxide Nanoparticles for Biomedical Applications: Synthesis, Functionalization and Application begins with several chapters covering the synthesis, stabilization, physico-chemical characterization and functionalization of iron oxide nanoparticles. The second part of the book outlines the various biomedical imaging applications that currently take advantage of the magnetic properties of iron oxide nanoparticles. Brief attention is given to potential iron oxide based therapies, while the final chapter covers nanocytotoxicity, which is a key concern wherever exposure to nanomaterials might occur. This comprehensive book is an essential reference for all those academics and professionals who require thorough knowledge of recent and future developments in the role of iron oxide nanoparticles in biomedicine. - Unlocks the potential of iron oxide nanoparticles to transform diagnostic imaging techniques - Contains full coverage of new developments and recent research, making this essential reading for researchers and engineers alike - Explains the synthesis, processing and characterization of iron oxide nanoparticles with a view to their use in biomedicine

Environmental Release of and Exposure to Iron Oxide and Silver Nanoparticles

Environmental Release of and Exposure to Iron Oxide and Silver Nanoparticles PDF Author: Henning Wigger
Publisher: Springer
ISBN: 3658167912
Category : Technology & Engineering
Languages : en
Pages : 269

Book Description
In this thesis a prospective approach was developed to identify and to assess current as well as potentially upcoming product applications with focus on environmental releases and exposures of engineered nanomaterials. The developed product application scenarios were illustrated in case studies on iron oxide and silver nanoparticles. It was shown that despite of prevailing knowledge gaps, reasonable estimations for environmental releases and exposures can be made. This novel approach facilitates the identification of early indicators for precautionary risk management measures and among them benign by design concepts in technology and product development.

Green Synthesized Iron-based Nanomaterials

Green Synthesized Iron-based Nanomaterials PDF Author: Piyal Mondal
Publisher: CRC Press
ISBN: 1000645223
Category : Technology & Engineering
Languages : en
Pages : 171

Book Description
This book covers different green approaches used for the preparation of iron-based nanoparticles and their environmental remediation applications. It investi-gates various environmental applications such as antimicrobial studies, dye and heavy metal removal, and wastewater pollutant degradation by various green syn-thesized iron nanomaterials. Critical analysis of different routes and the sepa-ration techniques of iron-based nanomaterials along with the potential impacts of iron nanoparticles on human health and the atmosphere are also discussed. Overall, the authors: Summarize all the basic aspects of synthesis and application of iron-based green nanomaterials Explain morphological parameters of the prepared nanomaterials obtained from different routes and their specific applications Include different separation techniques from an industrial point of view Exclusively cover specific environmental remediation applications Discuss the future scope and challenges of green processes This book is aimed at researchers and professionals in chemical and environmental engineering, materials science, and nanotechnology.

Soft Nanoferrites for Biomedical and Environmental Applications

Soft Nanoferrites for Biomedical and Environmental Applications PDF Author: Atul Thakur
Publisher: CRC Press
ISBN: 1040131085
Category : Technology & Engineering
Languages : en
Pages : 349

Book Description
Spinel nanoferrites have emerged as an advanced class of nanostructured materials in the domains of nanoscience and technology over the past decade. This book covers the fundamentals of spinel ferrites and their applications in the health sector and the environment. It focuses on the key applications of spinel ferrites in the health sector, such as hyperthermia, cancer diagnosis/treatment, and antimicrobial activity, as well as in environmental issues like water purification, wastewater treatment, and air pollution remediation. Features Covers the classification, synthesis, properties, structures, and applications of spinel ferrites. Provides exclusive coverage of biomedical and environmental applications. Includes discussions on environmental pollution, types of pollutants, and the removal of those pollutants using spinel nanoferrites. Reviews applications in cancer diagnosis and treatment, MRI, hyperthermia, and related fields. Recommends building environmentally-friendly ferrite materials for a clean environment. This book is aimed at graduate students and researchers in materials science, nanotechnology, environmental science, and bioengineering.

Magnetic Nanoparticles in Human Health and Medicine

Magnetic Nanoparticles in Human Health and Medicine PDF Author: Costica Caizer
Publisher: John Wiley & Sons
ISBN: 1119754747
Category : Science
Languages : en
Pages : 512

Book Description
Magnetic Nanoparticles in Human Health and Medicine Explores the application of magnetic nanoparticles in drug delivery, magnetic resonance imaging, and alternative cancer therapy Magnetic Nanoparticles in Human Health and Medicine addresses recent progress in improving diagnosis by magnetic resonance imaging (MRI) and using non-invasive and non-toxic magnetic nanoparticles for targeted drug delivery and magnetic hyperthermia. Focusing on cancer diagnosis and alternative therapy, the book covers both fundamental principles and advanced theoretical and experimental research on the magnetic properties, biocompatibilization, biofunctionalization, and application of magnetic nanoparticles in nanobiotechnology and nanomedicine. Chapters written by a panel of international specialists in the field of magnetic nanoparticles and their applications in biomedicine cover magnetic hyperthermia (MHT), MRI contrast agents, biomedical imaging, modeling and simulation, nanobiotechnology, toxicity issues, and more. Readers are provided with accurate information on the use of magnetic nanoparticles in diagnosis, drug delivery, and alternative cancer therapeutics—featuring discussion of current problems, proposed solutions, and future research directions. Topics include current applications of magnetic iron oxide nanoparticles in nanomedicine and alternative cancer therapy: drug delivery, magnetic resonance imaging, superparamagnetic hyperthermia as alternative cancer therapy, magnetic hyperthermia in clinical trials, and simulating the physics of magnetic particle heating for cancer therapy. This comprehensive volume: Covers both general research on magnetic nanoparticles in medicine and specific applications in cancer therapeutics Discusses the use of magnetic nanoparticles in alternative cancer therapy by magnetic and superparamagnetic hyperthermia Explores targeted medication delivery using magnetic nanoparticles as a future replacement of conventional techniques Reviews the use of MRI with magnetic nanoparticles to increase the diagnostic accuracy of medical imaging Magnetic Nanoparticles in Human Health and Medicine is a valuable resource for researchers in the fields of nanomagnetism, magnetic nanoparticles, nanobiomaterials, nanobioengineering, biopharmaceuticals nanobiotechnologies, nanomedicine, and biopharmaceuticals, particularly those focused on alternative cancer diagnosis and therapeutics.

Iron Ores and Iron Oxides - New Perspectives

Iron Ores and Iron Oxides - New Perspectives PDF Author: Brajesh Kumar
Publisher: BoD – Books on Demand
ISBN: 183769544X
Category : Technology & Engineering
Languages : en
Pages : 130

Book Description
Rapid development in engineering and biomedical applications of iron and iron oxide materials has attracted the attention of researchers around the world. discusses the extraction, synthesis, characterization, and applications of iron, iron oxide, and their nanoparticles/nanocomposites. It includes six chapters that address such topics as environmentally friendly techniques for engineering iron nanoparticles, the application of nano-dimensional iron oxide nanoparticles with nanotoxicology, biomedical applications of superparamagnetic iron oxide nanoparticles, and much more.

Environmental Applications of Microbial Nanotechnology

Environmental Applications of Microbial Nanotechnology PDF Author: Pardeep Singh
Publisher: Elsevier
ISBN: 0323972551
Category : Medical
Languages : en
Pages : 426

Book Description
Environmental Applications of Microbial Nanotechnology: Emerging Trends in Environmental Remediation discusses emerging trends and recent advancements in environmental remediation. The book provides environmental applications of microbial nanotechnology that helps readers understand novel microbial systems and take advantage of recent advances in microbial nanotechnologies. It highlights established research and technology on microbial nanotechnology's environmental applications, moves to rapidly emerging aspects and then discusses future research directions. The book provides researchers in academia and industry with a high-tech start-up that will revolutionize the modern environmental applications of microbial nanotechnology research. Provides the fundamentals of microbial nanotechnology in relation to environmental applications Addresses challenging impacts of microbial nanotechnology on the environment, human health, safety and sustainability Provides principles and advanced trends and approaches for environmental remediation Features real-time applications with case studies that illustrate how microbial nanotechnology influences modern sciences and technology