Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 28 for “"Magnetic Nanoparticle"”.
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A quantitative design and analysis of magnetic nanoparticle heating systems
Magnetic particles under the influence of an alternating magnetic field act as localized heating sources due to various loss mechanisms. This effect has been extensively investigated in hypothermia studies over the past decades and has recently been applied at the molecular level to control the …
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Plasmon Hybridization in Clusters of Metal Nanoparticles and Magnetic Nanoparticle Oligomers
… and material composition of individual nanoparticles to background environments tunable in real time to aggregation scheme and spatial arrangement, many avenues for controllably altering the optical properties of metal nanoclusters are being explored. In this dissertation, we will focus …
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Microfluidic cancer cell isolation system using magnetic nanoparticle hybrids and advanced interdigitated electrode technology
… research has been conducted in improving magnetic sensing technologies for cell isolation systems. These technologies, through the popular biomarkers, i.e. DNA, RNA, proteins, antibodies, have already been implemented in clinical diagnosis and/or prognosis.An example of a successful …
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Incorporating Magnetic Nanoparticle Aggregation Effects into Heat Generation and Temperature Profiles for Magnetic Hyperthermia Cancer Treatments
… to the dose that healthy tissue receives. Nanoparticle (NP) based treatments offer many advantages for target specificity compared to other forms of treatment due to their ability to selectively target tumors. One benefit of using magnetic NPs is their ability to release heat, which can …
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Tracking of Transplanted Mesenchymal Stem Cells Labeled with Fluorescent Magnetic Nanoparticle in Liver Cirrhosis Rat Model with 3T MRI
… mesenchymal stem cells labeled with fluorescent magnetic nanoparticle in liver cirrhosis rat model with 3 Tesla (3T) MR equipment. Materials and Methods : For the evaluation of T2 and T2* relaxation time, 5 x 105 cells/ml mesenchymal stem cells (MSCs) were separately labeled for 12 hours using …
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Development of Magnetic Nanoparticle-based Enrichment Techniques and Mass Spectrometry Methods for Quantification of the Clinical Biomarker Cardiac Troponin I
… cTnI from serum and plasma. Silica coated magnetic nanoparticles were synthesized and conjugated with antibodies to act as immunoaffinity carriers. Magnetic nanoparticles were selected due to their variable surface modifications, high binding capacity, and the fact that they can be easily …
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Controlled synthesis of magnetic particles
Magnetic particles have been used for many applications demanding a broad range of particles morphologies and chemistries. Superparamagnetism is advantageous over ferromagnetism because it enables us to control and recover magnetic nanoparticles during and after chemical processing. …
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Thermodynamic and transport properties of non-magnetic particles in magnetic fluids
Magnetic composites, obtained on associating magnetic fluid with non-magnetic particles, offer interesting opportunities in separations, assemblies and other applications, where the microstructure of the composite can be altered reversibly by an external field without altering the composition. The …
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Transgene-free strategies for wireless control of animal physiology using magnetite nanoparticles
… and cause minimal damage to brain tissue. Magnetic fields are an appealing candidate for wireless therapies because at many frequencies and amplitudes, the human body is similar enough in its magnetic response to vacuum that magnetic fields can penetrate arbitrarily deep. When combined with …
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EXPLOITING NANOSCALE MATERIALS PROPERTIES FOR CONTROLLED DRUG DELIVERY SYSTEMS
… an oral capsule formulation with iron oxide nanoparticles (IONs) containing coating was used to transport drug and release drug in the colon. With that in mind, the synthesis of poly (alkylcyanoacrylate) nanocapsules by microemulsion polymerisation and magnetic iron oxide nanoparticles (IONs) …
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Application of whole-cell biosensor for the impact of crude oil exploration on the environment of the Niger Delta
… tool to the chemical analysis methods. The novel magnetic bio-reporter device developed with the magnetic nanoparticles (MNPs) functionalization and also the device on Simultaneous and online detection of crude oil contamination via biological- phase micro-extraction and bios-sensing (BPME-BS) in …
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Application of whole-cell biosensor for the impact of crude oil exploration on the environment of the Niger Delta
… tool to the chemical analysis methods. The novel magnetic bio-reporter device developed with the magnetic nanoparticles (MNPs) functionalization and also the device on Simultaneous and online detection of crude oil contamination via biological- phase micro-extraction and bios-sensing (BPME-BS) in …
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Micro and nanotechnology for cancer treatment
… In the first section, we describe a hybrid magnetic and size sorting microfluidic device that isolates rare circulating tumor cells from peripheral blood. The self-assembled magnetic sorter creates strong magnetic fields and effectively removes leukocytes tagged with magnetic nanoparticles. …
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Surface Functionalized Water-Dispersible Magnetite Nanoparticles: Preparation, Characterization and the Studies of Their Bioapplications
<p>Iron oxide magnetic nanoparticle synthesis and their surface functionalization hold a crucial position in the design and fabrication of functional materials for a variety of biomedical applications. Non-uniform nanoparticles with poor crystallinity, prepared by conventional methods, have only …
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The Design and Synthesis of Magnetic Nanocomposites
… discuss the synthesis and processing of multiple magnetic nanoparticle structures designed for the enhancement of various, application specific, properties. In the first experiments a tunable core/shell structure was developed with either enhanced optical properties or enhanced catalytic …
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Synthesis of Amphiphilic Block Copolymers for Use in Biomedical Applications
… also play a significant role in the formation of magnetic magnetite nanoparticles, which are dispersible in water at biological pH (pH =7). There is significant interest in the design of magnetic nanoparticle fluids for biomedical applications including magnetic field-directed drug delivery, …
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Directing the self-assembly of short peptide derivatives
… the self-assembly to the surface. Enzyme-(magnetic)nanoparticle conjugates were employed to trigger the self-assembly and gelation of peptide derivatives in two different systems, an equilibrium system and a far from equilibrium one. For both systems, the self-assembly results in the …
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Forming magnetic chain with the help of biological organisms
Magnetite nanoparticles and their assembly comprise a new area of development for new technologies. The magnetic particles can interact and assemble in chains or networks. Magnetotactic bacteria are one of the most interesting microorganisms, in which the assembly of nanoparticles occurs. These …
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Detecting and molecular profiling cancer cells in patients
… In the first section, we describe a diagnostic magnetic resonance (DMR) device that was developed for point-of-care analyses of human tumors. We optimized a magnetic nanoparticle assay to improve sensitivity and robustness of the DMR approach. The DMR device was tested by analyzing samples from …
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