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 90 for “"emulsification"”.
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Investigating silicone oil emulsification in eye chamber models
The emulsification of silicone oil in intraocular liquid is an unwanted complication occurring after retinal detachment repair. The repair surgery consists of removing most of the intraocular liquid and replacing it by a tamponade fluid. Silicone oils with dynamic viscosities in the range 1-5 Pa s …
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Solubilization-emulsification processes in nonionic surfactant-water-liquid triglyceride systems
… removal would involve a solubilization-emulsification mechanism. Intermediate phases such as microemulsions or liquid crystals form at the surface of contact between surfactant solution and soil. These intermediate phases solubilize the soil and are subsequently emulsified into the …
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Solubilisation and emulsification of silicone oils in aqueous surfactant systems
Solubilisation and emulsification of polydimethylsiloxane (PDMS) oils into aqueous surfactant solutions have been investigated with a series of nonionic surfactants and an anionic surfactant (AOT).For nonionic surfactants at oil-water interfaces, the effect of temperature, surfactant structure, …
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Emulsification properties of heated whey protein-pectin formed at neutral pH
… improved protein functional properties including emulsification properties. Most studies focus on complex coacervates which are formed at pH [less than] pI. Much less attention has been given to interactions at pH [greater than] pI, especially when the mixtures are heated. The objective of this …
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New siloxane - nylon-6 diblock copolymers for emulsification and toughening of blends
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1989.
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Emulsification, separation, and manipulation of oil-water systems using condensation, electrocoalescence, and electrowetting
This thesis explores the emulsification, separation, and manipulation of oil/water mixtures using a range of chemical, mechanical, and electrical techniques. Simply explained, this thesis reports new methods to emulsify oil and water using condensation, separate oil and water using low-voltage …
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Synthetic Solidarities: Theorizing Queer Affectivity and Trans*national/temporal Emulsification as Embodied Resistance to Global Capitalism
This dissertation theorizes the synthesis of solidarities around queer embodied performativities as a mode of making-resistant the everyday experiences of exploitation under transnational capitalism. These solidarities, I argue, are cultivated around the affective, embodied experiences of what José …
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Production of stable bcs class ii drug suspensions by melt emulsification and subsequent incorporation into polymer strip films
… and ibuprofen, are prepared by the melt emulsification technique. The influence of suspension formulation (i.e., the inclusion of polymers and surface-active agents) on particle stability is investigated. Moreover, different agitation techniques during cooling are studied for their impact …
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A study of lithographic ink and water interactions
… quality; this involves factors affecting the emulsification of water and ink. This process was investigated with two designed model ink varnishes (one being 'hydrophilic' relative to the other 'hydrophobic' varnish) and two commercial varnishes. The Surland test, widely used to characterise …
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Diffusion phenomena in oil-water-surfactant systems
… growth, interface velocities, and spontaneous emulsification was achieved. The conditions of interest ranged from low salinities at which the surfactant is water-soluble to high salinities at which it is oil-soluble. At low salinities, the initial aqueous solution was a dilute dispersion of …
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Supercritical water gasification of waste residues
… efficiencies, to compare the effect of emulsification of motor oil on the efficiencies, and to model the gasification reaction. The gas product was analyzed by gas chromatography and a 22 full factorial was performed to identify the effects of the process variables on each component of …
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Disulfide Cross -Linking in Protein Microspheres
… the proteins as they approach each other during emulsification and agglomeration.
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Development and Testing of a Mobile Pilot Plant for the Advancement and Scale-up of the Hydrophobic-Hydrophilic Separation Process
… operations, including the agglomeration and de-emulsification (i.e. Morganizing) steps. Studies showed that the initial design of these units, namely pump induced mixing in agglomeration and packed bed emulsification in the Morganizer, were not adequate to meet production demands, and as such, …
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Enhancing the functionality of delactosed whey by enzymatic hydrolysis using Response Surface Methodology Approach (RSM)
… conditions. Within the range tested, the emulsification capacity and activity of the DLW hydrolysates, produced under optimal conditions, were comparable to, if not greater, than that of WPI, which is known for its exceptional functionality attributes. The RSM approach provided an …
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Reenvelopment of native and processes butteroils into globules resembling milk lipid globules in functional properties
… (butteroil:buttermilk/aqueous phase:skim milk), emulsification time of 2.0 minutes for a 15 ml sample, and emulsification temperature of 42°C. Optimized conditions were used in scale-up reformulation of 750 ml samples replacing ultrasound with homogenization. Treatments included both native …
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CHITOSAN PARTICLES FOR THE CONTROLLED RELEASE OF PROTEINS
… method to prepare chitosan nanoparticles 2) Emulsification-coacervation (NaOH) method to prepare chitosan microparticles 3) a polyelectrolytes coacervation method to prepare chitosan-BSA complexes 4) a microemulsion involved emulsification-coalescence method to prepare TPP-gelated chitosan …
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The Development of a Bacterial Biosensor Designed to Detect Oxidative Chemicals in Water: Correlating Sensor Relevance to Mammalian Brain Cells and Assessing Bacterial Cell Immobilization Strategies
… cells. Furthermore, the use of an octanol-based emulsification method for the immobilization of P. aeruginosa in calcium alginate microbeads was evaluated for long-term mechanical stability, viability, and GGKE response of the immobilized cells. The immobilization of cells is an important factor …
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A Comprehensive Study and Mechanism Investigation for Alkaline-Heavy Oil Recovery Process
… in-situ surfactants are generated for various emulsification phenomenon. It is known that alkaline flooding performance in oil recovery is subjected to the emulsion type generation, thus, of great importance to alkaline flooding study is its mechanism investigation and saponification rate …
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Conversion of hydrocarbons to biosurfactants : an insight into the bioprocess optimisation of biosurfactant production using alkanes as inducers
… was quantified functionally in terms of the emulsification index and alteration of surface tension. Using a shake flask-based study, nitrogen source was investigated in terms of biomass and biosurfactant synthesis. Four pre-selected nitrogen sources were tested in order to select the best for …
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