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 50 for “"nanoparticle synthesis"”.
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Stochastic modelling of silicon nanoparticle synthesis
… thesis presents new methods to study the aerosol synthesis of nano-particles and a new model to simulate the formation of silicon nanoparticles. Population balance modelling is used to model nanoparticle synthesis and a stochastic numerical method is used to solve the governing equations. The …
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Simulations of Nanoparticle Synthesis in Laminar Stagnation Flames
… of a multidimensional solver for studying nanoparticle synthesis in laminar flames is presented. The governing equations are convective-diffusive-reactive partial differential equations that are discretised using the finite volume method. Detailed chemical source terms and transport …
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Colloidal Cerium Oxide Nanoparticle: Synthesis and Characterization Techniques
… is the stable form of bulk cerium oxide, ceria nanoparticles exhibit a nonstoichiometric composition, CeO2-γ, due to the presence of oxygen vacancies and the formation of Ce2O3 at the grain boundaries. The Ce(III) ions, which are more reactive and therefore more desirable for various …
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The Optimization of Gold Coated Iron Nanoparticle Synthesis Methods
… frequently employed in the fabrication of nanoparticle systems, gold is one of the most popular. Gold has a defined affinity for sulfur, which gives a gold surface the potential for functionalization if a thiolated ligand is used. However gold is rare and costly, and cannot be used …
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Detailed Population Balance Modelling of Titanium Dioxide Nanoparticle Synthesis
… population balance model to study the aerosol synthesis of titanium dioxide nanoparticles. It begins by exploring whether the morphological data captured by an existing detailed particle model can be used in a milling model to relate particle morphology and ultimately the particle synthesis …
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Connecting Thermodynamics and Kinetics of Ligand Controlled Colloidal Pd Nanoparticle Synthesis
Colloidal nanoparticles are widely used for industrial and scientific purposes in many fields, including catalysis, biosensing, drug delivery, and electrochemistry. It has been reported that most of the functional properties and performance of the nanoparticles are highly dependent on the particle …
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Calcium Phosphate Nanoparticle Synthesis and Manufacture using Microwave Processing for Biomedical Applications
… However, significant problems related to their synthesis have limited their clinical use.</p><p>Conventional processing produces CaP with low crystallinity and large particulates which contributes to the overall brittleness of formed products. This has largely restricted the use of synthetic …
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Novel reactions of a neutral organic reductant : reductive coupling and nanoparticle synthesis
… new chemistries for reductive coupling and the synthesis of group IV nanoparticles. This super electron donor was used as a co-reductant for nickel-catalyzed reductive coupling of aryl halides in order for the reaction to be homogeneous and avoid the traditional co-reductant, zinc, previously …
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Influence of hydrophobically modified polyelectrolytes on nanoparticle synthesis in self-organized systems and in water
… desired. Several methods can be employed for the synthesis of nanoparticles. On the one hand, the reduction can occur in diluted aqueous or alcoholic solutions. On the other hand, the reduction process can be realized in a template phase, e.g. in well-defined microemulsion droplets. However, the …
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Small Solutions to Big Problems: Design and Synthesis of Nanoparticles for Biomedical Applications
Nanoparticles have the potential to revolutionize medicine, but many obstacles complicate the translation of nanoparticles from the bench to the clinic. A deeper understanding of nanoparticle synthesis parameters that influence nanoparticle size, drug loading, and surface chemistry is needed to …
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Synthesis and characterisation of doped silicon nanoparticles by hot wire thermal catalytic and spark pyrolysis
Doped silicon nanoparticles with clean surfaces and which are suitable forelectronic applications, have successfully been produced. The doped silicon nanoparticles produced in this work will find application in the emerging field of flexible electronics. Two bottom-up production processes were …
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Quantum diamonds : a discussion of the chemistry, materials science, physics and applications of ternary (Cu-In-S) nanocrystals
… preparative methods. This thesis explores the synthesis and properties of colloidal nanocrystals composed of the non-toxic semiconductor copper indium sulfide (CulnS₂). We report an improved core nanoparticle synthesis with unique compositional control, a rationally-designed precursor for the …
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Kinetically Controlled Synthesis of Triblock Copolymer Stabilized Gold Nanoparticles
… and economic impact of organic solvents in gold nanoparticle synthesis have motivated the search for more environmentally benign alternatives. One viable approach is the synthesis of AuNPs from tetrachloroauric(III) acid (HAuCl4) using triblock copolymers (TBPs). However, a major challenge of …
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Surface engineering using layer-by-layer assembly of pH-sensitive polymers and nanoparticles
… assembly of pH-sensitive polymers and nanoparticles. In the first part of this thesis, hydrogen-bonded multilayer coatings comprising poly(acrylic acid) and polyacrylamide were used to functionalize spherical colloidal particles. Multilayer-modified colloids showed an excellent …
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Nanoparticle-chiral nematic liquid crystal composites
… created experimentally by combing magnetooptical nanoparticles with a chiral nematic liquid crystal. The fabrication of this material system was advanced through two distinct phases of research. The first phase seeks to produce magnetooptical yttrium iron garnet (YIG) nanoparticles with an average …
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Iron Oxide Nanoparticle Surface Modification: Synthesis and Characterization
… within the scientific community. Iron oxide nanoparticles, specifically those based on iron (II, III) oxide (magnetite, Fe3O4), have been prominently investigated for biomedical, theranostic applications due to their documented superparamagnetism, high biocompatibility, and other unique …
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Optical Modeling And Analysis Of Disordered Plasmonic Nanoparticle Ensembles
Plasmonic nanoparticle synthesis provids a facile and cost-effective bottom-up solution to fabrication of nanoscaled structures. With effective packaging methods like embedding into polymer composites and superlattice assemblies, the chemically synthesized nanoparticles are promising candidates for …
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Preparation and characterization of poly lactic-co-glycolic nanoparticles encapsulated with gentamicin for drug delivery applications
… have been dramatically improved. The ues of nanoparticles encapsulated with antibiotics to deliver drugs has been shown to be a potentially effective approach to control bacterial infections at a wound position. Recently, biodegradable and biocompatible polymers have drawn lots of attention …
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Subwavelength nanostructures for optical biosensing and rapid photochemical reactions
… has been demonstrated. Photocatalytic metal nanoparticle synthesis is of significant interest in plasmonic biosening due to the simple fabrication capability. However, long synthesis time of more than 10 hours and the use of particle stabilization chemical agents hinder economical and rapid …
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