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 511 for “"Phase Separation"”.
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Phase separation in giant vesicles
… contain several spatial compartments formed by phase separation within their enclosed aqueous solution. This phenomenon might be related to molecular crowding, fractionation and protein sorting in cells. To elucidate this process we used two chemically dissimilar polymers, polyethylene glycol …
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Phase separation spinning of polypropylene fibers
… of different polymer contents undergoing phase separation. The range of concentrations used was 25 to 60 wt. % polypropylene. The solvent used was naphthalene. After the naphthalene was extracted from the fibers using diethyl ether the fiber's properties were measured. Deniers and …
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Non-equilibrium phase separation in active matter
… models within this class, including microphase separation, limit cycles and droplet splitting. To expand upon the systematic study of non-equilibrium reaction-diffusion systems, we also consider that the diffusive dynamics can break time reversal symmetry in its own right. This happens …
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Phase Separation Mediated Compartmentalisation of Rotavirus Replication
Liquid-liquid phase separation (LLPS) of biopolymers is a fundamental mechanism underlying the formation of cytoplasmic inclusions that function as sites of genome replication and viral particle assembly in rotaviruses. Intrinsically disordered proteins are key drivers of LLPS. In rotaviruses, the …
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Phase separation in multicomponent protein-water solution
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1995.
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Quantitative analysis of protein liquid-liquid phase separation
… to demix into a protein-rich liquid condensate phase and a protein-poor dilution phase. This process of liquid–liquid phase separation (LLPS) has emerged as a crucial mechanism for describing the production of biological condensates in live cells, which have been found to be critical to a number …
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Phase separation spinning of porous polypropylene hollow fibers
Two phase separation polymer-solvent systems were studied: polypropylene-paraffin wax, and polypropylene-naphthalene. A tube-in-orifice spinneret design was used. All attempts to spin hollow fibers using the polypropyleneparaffin wax system failed. Initial attempts to produce hollow fibers from …
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Relating phase separation and thickness mismatch in model lipid membranes.
… can spontaneously undergo a process called phase separation wherein they organize into domains with different compositions. Phase separation has been proposed as a mechanism in the formation of heterogeneous lipid regions (e.g. rafts) in cell membranes. The activity and partitioning of …
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Diffusion kinetics and phase separation phenomena during asymmetric membrane formation
… and experimental analysis of the dynamics of the phase inversion process for forming asymmetric membrane structure have been carried out. A comprehensive model combining the evaporation and quench steps of phase inversion has been developed by using an improved numerical algorithm based on a …
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Investigation of phase separation in GaInAsSb using transmission electron microscopy
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1998.
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Curvature driven phase separation in mixed ligand coated gold nanoparticles
… of a role as the surface chemistry. Intriguing phase-separation phenomena have been observed for mixed self-assembled monolayers (SAM) of octanethiol (OT) and mercaptopropionic acid (MPA) on the surface of gold nanoparticles. These ordered structures are studied here through scanning tunneling …
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Enhancers and phase separation in the control of gene expression
… factors associated with them form liquid-liquid phase-separated condensates.
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Asssessing the Liquid-Liquid Phase Separation Abilities of Eyes Absent Protein
… identified as potential drivers of liquid-liquid phase separation in a proteome-wide screen. The apparent conservation of this physical potential within the disordered region of EYA proteins suggests that phase separation of this region may play a role in interactions between EYA and other …
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Directed Phase Separation of Polymer Blends on Binary-Patterned Polymer Brushes
… Chemically patterned substrates can direct the phase separation of thin films of polymer blends, producing controlled morphologies. This has been demonstrated using patterned self-assembled monolayers. Binary-patterned polymer brushes provide a robust, chemically and topographically patterned …
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Fluctuations, Phase Separation and Wetting Films near Liquid-Gas Critical Point
… In order to study boiling, fluctuation and phase separation processes near the critical point of pure fluids without the influence of the Earth's gravity, a number of experiments were performed in the weightlessness of Mir space station. The experimental setup called ALICE II instrument was …
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The Dynamics of Phase Separation and Structure Formation in Phase Inversion
Studies of phase inversion are presented, the process by which a cast polymer solution is converted into a porous, polymer gel by either thermal or nonsolvent quenching. In all three of the studies presented in this thesis, in-situ optical techniques have been used to study the dynamics of phase …
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Phase separation in solid mixtures of helium-3 and helium-4
Phase separation temperatures have been determined in bee 3He-4He mixtures as a function of 3He concentration and melting pressure from measurements of changes in the x-ray lattice parameter and peak shape. A new rigid tail dilution refrigerator cryostat is used to study 3 He-4He crystals with 3He …
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The effect of physical molecular features on complex coacervation phase separation
… coacervation is an associative liquid-liquid phase separation of oppositely-charged polyelectrolytes in aqueous salt solution. This phase separation is sensitive to chemical and physical molecular features making it attractive for a large number of applications. However, precisely tuning the …
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Critical dynamics of active phase separation: A scalar field theory approach
… at particle level, mainly motility-induced phase separation (MIPS). This is a form of phase separation in the absence of attractive interactions that is not present in these systems' passive counterparts. These theories are built as extensions of models of equilibrium phase separation (Model …
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Multiscale coarse-grained models for biological phase separation: Development and applications
Many proteins undergo liquid–liquid phase separation (LLPS) in order to generate membraneless organelles, by which the cell can organise its biomolecules and bioprocesses dynamically in space and time. Many of the experimental and theoretical methodologies used to study the formation of these …
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