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 36 for “"dispersibility"”.
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Study of Rehydration Properties of Powder Produced from Chelated Skim Milk
… into four stages: wettability, sinkability, dispersibility, and solubility. Previous work has suggested that chelator addition during SMP manufacture leads to higher solubility compared to SMP without chelators. This study focuses on the addition of ethylene diamine tetraacetic acid (EDTA) or …
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Step-Growth Polymerization Towards the Design of Polymers: Assembly and Disassembly of Macromolecules
… backbone. The polyimides obtained exhibited dispersibility only in dipolar, aprotic, high boiling solvents such as DMAc or NMP. The obtained poly(siloxane imides) demonstrated enhanced dispersibility in lower boiling organic solvents such as THF and CHCl₃. Dynamic mechanical analysis and …
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DEVELOPMENT OF MAGNETIC NANO-SIZE SOLID ACID CATALYSTS FOR THE PRODUCTION OF BIOFUEL
… THE EFFICIENT PRODUCTION OF BIOFUEL WITH GOOD DISPERSIBILITY, HIGH ACIDITY, AND SIMPLE MAGNETIC SEPARATION.
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Colloidal CdSe quantum nanowires: Synthesis, photo-induced photoluminescence enhancement and fabrication of core/shell, water-dispersible structures
… were also synthesized to achieve the water-dispersibility.
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Physical and Chemical Characteristics of Cow's Milk Extended With Soymilk
… viscosity, solubility index, solids and nitrogen dispersibility index observations were made.
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Alkylation of Boron Nitride Nanomaterials using Reductive Conditions
… nanomaterials are not perfect. It is their poor dispersibility in solvents and their chemical inertness that have frustrated their comprehensive utilization. The ability to chemically modify these nanostructures could open the door to tune their properties and expand their compatibility with …
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Fabrication and characterization of cellulose nanocrystal enhanced sustainable polymer nanocomposites through surface chemistry and processing
… of utilizing CNCs is to overcome their low dispersibility in hydrophobic polymers. In the present work, several approaches are utilized to improve the interfacial compatibility and overall performance of CNC/epoxy and CNC/polyamide nanocomposite.</p> <p>For a two-part epoxy system, a novel …
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Dairy ingredients-based emulsions and beta-carotene delivery
… also prepared, and their microstructures, re-dispersibility, and the properties of their reconstitutions were characterized. A whey protein isolate (WPI) stabilized emulsion with small initial droplet size showed better creaming and pH stability and higher cellular uptake of β-carotene than …
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Nonaqueous Synthesis of Metal Oxide Nanoparticles and Their Surface Coating
… particle size, high crystallinity and high dispersibility in non-polar solvents. The particle size can be tuned by the seed mediated growth and the particle shape can also be controlled by altering the capping ligand type and amount. The mixed bi-metal oxides such as cobalt iron oxide and …
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Nonaqueous synthesis of metal oxide nanoparticles and their assembly into mesoporous materials
… high crystallinity and particularly high dispersibility in THF, which enable them to become the ideal particulate precursor for the formation of mesoporous SnO2. ITO nanoparticles possess uniform particle morphology, narrow particle size distribution (5-10 nm), high crystallinity as well …
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Preparation and Characterization of Hydrophobic Graphene-Based Thin Films
… experimental investigation into graphene oxide's dispersibility in different solvents. The influence of these solvents on the physico-chemical characteristics of the resulting graphene oxide and reduced graphene oxide thin films cast on a silicon substrate is studied. It is found that the choice …
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Colloidal microgels: synthesis, characterisation and applications
… resultant particles in different solvents. The dispersibility behaviour of the novel and NIPAM-based microgels has also been studied in different solvents to find their utility in removing water from oil. Colloidal microgel particles have shown successful application in reducing the water …
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Fluorescent silicon nanocrystals for bioimaging
… applications. The stability of Si nanocrystal dispersibility and photoluminescence (PL) in aqueous solutions was studied. Hydrophobic Si nanocrystals were dispersed with surfactants to produce colloidally stable and brightly fluorescent dispersions, with PL quantum yields in the range of 3.2% - …
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Effect of nano- fillers on tensile properties of biopolymer films
… their size, shape, and surface chemistry. Good dispersibility and the extent of polymer-filler interactions controlled the effect of nanofillers on film properties. Nano-size, high aspect ratio, and hydrophilicity showed significant effects on tensile properties over micro-size, low aspect …
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Synthesis and Characterization of Graphene-Polymer Nanocomposites via Reversible Addition-Fragmentation Chain-Transfer Polymerization
… oxide (PDA/RGO) nanocomposites showed excellent dispersibility in several organic solvents. The final polymer matrix dispersed of functionalized reduced graphene oxide showed higher maximum decomposition temperature measured by TGA, indicating better thermal stability.
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Surface Functionalized Water-Dispersible Magnetite Nanoparticles: Preparation, Characterization and the Studies of Their Bioapplications
… functionalization is necessary to direct the dispersibility of nanoparticles in aqueous solution in order to provide them with acceptable colloidal stability against the ion strength and many biomolecules that nanoparticles may encounter under physiological conditions. Poorly stabilized …
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Characterization and utilization of extruded-expelled soybean flours
… (EE) soy flours with a wide range of protein dispersibility indexes (PDI), and residual oil (RO) levels as well as EE soy flours originating from various value-enhanced soybean varieties were investigated for their functional properties and utilization potential in food systems. Functional …
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Nichtwässrige Synthese und Bildungsmechanismus von Übergangsmetalloxid-Nanopartikeln = Nonaqueous synthesis of transition-metal oxide nanoparticles and their formation mechanism
… resulted in altered properties such as enhanced dispersibility in various solvents. In a second step, short functional oligopeptide segments were attached to the particles by means of a catechol linker to achieve advanced self-assembly properties.
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An investigation into polymeric excipient-drug compatibility in solid-liquid formulations
… agent that would effectively maintain good dispersibility of a given drug substance with known physico-chemical properties. This was achieved by quantifying the adsorption of different polymers onto a range of drug substances from different solvent environments and to establish which …
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Studies on selected physicochemical properties and microstructure of β-casein-enriched ingredients for applications in formulated nutritional products
… of IF and decreased the wettability and dispersibility of β-CNen IF powders. Overall, the findings of these studies are of relevance to end-users of β-CN-enriched products in controlling the association behaviour of β-CN and improving the stability of nutritional products enriched with …
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