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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 22 for “"Liquid-liquid interface"”.
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Instabilities when solute transfers across a liquid/liquid interface
Includes bibliographical references.
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Diffusion Through the Liquid-Liquid Interface: Interfacial Resistance in Three-Component Systems
Made available in DSpace on 2014-12-08T23:18:09Z (GMT). No. of bitstreams: 1 6507180.pdf: 2904361 bytes, checksum: 226b1be5dd8333df62b53cd7dfdec165 (MD5) Previous issue date: 1965
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Characterization of surfactant adsorption at a liquid-liquid interface by drop volume tensiometry
… the adsorption behavior of surfactants at liquid-liquid interfaces. In this work, selected surfactants are tested at the mineral oil-water interface using a drop volume tensiometer. A model is developed to account for the neck formation in suspended drops under certain experimental …
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Chemistry at liquid-liquid interfaces: con- and counter-current extraction and biologically active membranes in microchannels
… (SAM) allows for the stable photo-patterning of liquid-air interfaces within the microchannel. It is also found that these hydrophobic/hydrophilic interfaces allow for stable interfaces between immiscible fluids. Chemistry can be conducted at these interfaces. Reversed-micelle extraction of metal …
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Janus Particles at Interfaces
… directly influences their adsorption behavior at liquid-liquid interfaces. The adsorption behavior of Janus cylinders at liquid-liquid interfaces was studied using the pendant drop technique. The interfacial tension decreases with increasing Janus cylinder length and concentration. From the time …
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Dispersion of particles on liquid surfaces
… flour, pollen, etc.) come in contact with a liquid surface, they immediately disperse. The dispersion can occur so quickly that it appears explosive, especially for small particles on the surface of mobile liquids like water. This explosive dispersion is the consequence of capillary force …
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From interfacial nanostructures to advanced constructs: harnessing surfactant self-assembly at liquid interfaces
Liquid-in-liquid 3D (LL3DP) printing offers a promising platform for fabricating soft material structures by depositing an ink phase within an immiscible support bath. While this technique enables the creation of complex architectures for applications in biomedical engineering, drug delivery, and …
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Liquid-on-liquid mixing for slide-based biological assays
… of results, can take days to achieve. The liquid-on-liquid mixing (LOLM) method overcomes the diffusion barrier by layering an immiscible spectator fluid, such as mineral oil, on the thin film. Stirring the spectator fluid transmits shear at the liquid-liquid interface into the thin film. …
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Fluidic Assisted Fabrication of Elastomer Optical Lenses Using Capillarity
… lenses utilizing the capillarity effect at liquid-liquid interface. It was demonstrated that, by controlling the material properties, such as density, viscosity and interfacial tension, polymeric lenses with the desired magnifying power can be fabricated over a large size range. To explore …
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Hydrodynamics Of Drops And Particles Driven By Marangoni And Diffusiophoretic Forces
… Janus particle encapsulated in an immiscible liquid drop to form a compound drop/particle. Marangoni forces induced by asymmetric solute adsorption at the liquid-liquid interface of the drop propels the compound system. The propulsion speeds of the motor are analyzed for various relative sizes …
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Method for Photopolymerization 3D Printing of Recyclable Thermoplastic Polymers
… of polyacrylonitrile (PAN) can be formed at a liquid-liquid interface; this technique was named interfacial photopolymerization (IPP). In this thesis, which focuses on multilayer 3D printing (3D-IPP), the resolution and stability of layers formed by IPP are improved using a light-absorbing dye …
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The Spontaneous Triggering of Small-Scale Vapour Explosions
… a phenomenon which can sometimes occur when two liquids at very different temperatures are brought into contact. The energy for the explosion is derived from the thermal energy in the hot liquid which is transferred very rapidly to the cold liquid by a fast fragmentation and intermixing process. …
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Engineering Advanced Electrolyte and Metal Organic Framework Catalyst for Lithium Batteries
… gasoline. However, the inherent instability of liquid electrolytes, the flammability risks associated with volatile solvents, and the insulating nature of the discharge product, lithium peroxide, which severely restricts operation to low current densities, are currently impeding the practical …
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Characterization and Modulation of the Emergent Material Properties of Biomolecular Condensates
… and interact with the cytoplasm mediated by a liquid-liquid interface. The emergent properties and characterization of these organelles are essential for decoding the mechanisms underlying their function and dysfunction. In this thesis, we focus on two reconstituted in-vitro model systems of …
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Interfacial rheology of globular proteins
… active molecules are often adsorbed at an air-liquid or liquid-liquid interface due to favorable thermodynamics, and these interfaces play a role in such diverse fields as stabilizing foams and emulsions, controlling high speed coatings, the blood clotting process, designing synthetic …
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The role of surfactants in the leaching of zinc sulphide minerals at temperatures above the melting point of sulphur
… and orthophenylene diamine (OPD) in the liquid sulfur-aqueous zinc sulphate-zinc sulfide mineral system has been studied. The effect of the various surfactants on the liquid sulfur-aqueous system interfacial tensions and the liquid sulfur-mineral contact angle were measured in a high …
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Field induced assembly of particulate systems
… of monodisperse silica and glass particles on liquid - liquid interface and forming a liquid film of uniform thickness having arrangement of particles on it. This liquid film with arrangement of regular particles can be converted into a solid film by curing top UV curable liquid. Here, electric …
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Aqueous Self-Assembly with Cucurbit[n]urils: From Solution to Emulsion
… interdisciplinary research undertaken at the interface between chemistry, materials science, physics and engineering. Chapter 1 is an introductory chapter into the core concepts underlying this thesis. Supramolecular chemistry as a broad research field is briefly reviewed, followed by a focus …
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Electroanalytical chemistry for biological and environmental applications
… relevant sensors. In a first strand, two liquid crystal ferrocene compounds are examined, immobilised on the surface of a glassy carbon electrode simply via solvent evaporation. Both compounds demonstrated typical ion transfer processes across the liquid | liquid interface, with both anion …
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Mineralized Bionanoparticle Pickering Emulsions
… to produce functional nanopatterned surfaces and interfaces by means of Pickering emulsions which were employed in biomimetic hydroxy apatite mineralization to produce inorganic biocompatible surfaces and hollow mineral spheres. The work accounts for the emerging interest and significant …
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