Detection of Superparamagnetic Iron Oxide Nanoparticles in Fluid Flow for Molecular Communication Applications PDF Download

Author: Doaa Ahmed
Publisher:
ISBN: 9783961475186
Category :
Languages : en
Pages : 0

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Author: Morteza Mahmoudi
Publisher:
ISBN: 9781616689643
Category : Ferric oxide
Languages : en
Pages : 0

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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.

Author: Morteza Mahmoudi
Publisher:
ISBN: 9781617286315
Category : Ferric oxide
Languages : en
Pages : 225

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Author: Anthony Redjem
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ISBN:
Category :
Languages : en
Pages : 163

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Author: Wenlu Li
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 204

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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).

Author: Nazanin Hoshyar Masoodzadehgan
Publisher:
ISBN:
Category : Diagnostic imaging
Languages : en
Pages :

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Author: Patricia Villegas
Publisher:
ISBN: 9781685070069
Category : Iron oxides
Languages : en
Pages : 0

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Book Description
Iron oxide nanoparticles demonstrate a number of unique properties, including superparamagnetism, biocompatibility, and non-toxicity, which make them an ideal candidate for a variety of applications, as described in this book. Chapter One deals with the recent advances in various synthetic procedures of iron oxide-based nanocomposites, their characterization methods, and their potential applications in energy storage devices, supercapacitors, fuel cells, and more. Chapter Two summarizes current applications of immobilized enzymes based on iron oxide magnetic nanoparticles and discusses future growth prospects. Chapter Three reviews the properties and applications of enzymatic sensors in exploiting tyrosinase, glucose oxidase, and other enzymes for sensing a broad range of biomedical species. Chapter Four discusses magnetic magnetite and maghemite iron oxide nanoparticles from a variety of perspectives. Chapter Five describes how nano iron oxides could be used to remove pollutants from the environment. Chapter Six provides a comprehensive review of the catalytic applications of iron oxide nanoparticles in organic synthesis, high temperature reactions, gas-phase processes, wastewater treatment and supercritical upgradation of heavy petroleum oils. Chapter Seven details the photocatalytic degradation of a class of toxic, aromatic pollutants, namely, phenols and substituted phenols using different types of photocatalysts in the nano size range for effective removal these compounds from water bodies. Lastly, Chapter Eight elucidates various magnetic nanomaterials-based adsorbents used in adsorption techniques for wastewater treatment.

Author: Jonas Eschmann
Publisher:
ISBN:
Category :
Languages : en
Pages : 19

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Stanley Eugene Gilliland (III)
Publisher:
ISBN:
Category : Ferric oxide
Languages : en
Pages : 214

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Book Description
Iron oxide nanoparticles are highly researched for their use in biomedical applications such as drug delivery, diagnosis, and therapy. The inherent biodegradable and biocompatible nanoparticle properties make them highly advantageous in nanomedicine. The magnetic properties of iron oxide nanoparticles make them promising candidates for magnetic fluid hyperthermia applications. Designing an efficient iron oxide nanoparticle for hyperthermia requires synthetic, surface functionalization, stability, and biological investigations. This research focused on the following three areas: optimizing synthesis conditions for maximum radiofrequency induced magnetic hyperthermia, designing a simple and modifiable surface functionalization method for specific or broad biological stability, and in vitro and in vivo testing of surface functionalized iron oxide nanoparticles in delivering effective hyperthermia or radiotherapy. The benzyl alcohol modified seed growth method of synthesizing iron oxide nanoparticles using iron acetylacetonate as an iron precursor was investigated to identify significant nanoparticle properties that effect radiofrequency induced magnetic hyperthermia. Investigation of this synthesis under atmospheric conditions revealed a combination of thermal decomposition and oxidation-reduction mechanisms that can produce nanoparticles with larger crystallite sizes and decreased size distributions. Nanoparticles were easily surface functionalized with (3-Glycidyloxypropyl)trimethoxysilane (GLYMO) without the need for organic-aqueous phase transfer methods. The epoxy ring on GLYMO facilitated post-modifications via a base catalyzed epoxy ring opening to obtain nanoparticles with different terminal groups. Glycine, serine, [gamma]-aminobutryic acid (ABA), (S)-( - )-4-amino-2-hydroxybutyric acid (SAHBA), ethylenediamine, and tetraethylenepentamine were successful in modifying GLYMO coated-iron oxide nanoparticles to provide colloidal and varying biological stability while also allowing for further conjugation of chemotherapeutics or radiotherapeutics. The colloidal stability of cationic and anionic nanoparticles in several biologically relevant media was studied to address claims of increased cellular uptake for cationic nanoparticles. The surface functionalized iron oxide nanoparticles were investigated to determine effects on cellular uptake and viability. In vitro tests were used to confirm the ability of iron oxide nanoparticles to provide effective hyperthermia treatment. S-2-(4-Aminobenzyl)-1,4,7,10-tetraazacyclododecane tetraacetic acid (DOTA) was coupled to SAHBA and carboxymethylated polyvinyl alcohol surface functionalized iron oxide nanoparticles and radiolabeled with 177Lu. The capability of radiolabeled iron oxide nanoparticles for delivering radiation therapy to a U87MG murine orthotopic xenograft model of glioblastoma was initially investigated.