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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 24 for “"Membrane Interface"”.
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Electron Transfer at the Membrane Interface
Made available in DSpace on 2014-12-14T05:40:45Z (GMT). No. of bitstreams: 1 8004246.pdf: 4469162 bytes, checksum: e43eca796a7fc0592f6efacfc9d0fc23 (MD5) Previous issue date: 1979
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MODELLING CRYSTALLIZATION FOULING IN LIQUID-TO-AIR MEMBRANE ENERGY EXCHANGERS
Micro-porous membranes are used in membrane-based separation processes to separate water from an aqueous solution. Liquid-to-air membrane energy exchangers (LAMEEs) use membranes to control humidity and temperature in heating, ventilation and air-conditioning (HVAC) systems. A semi-permeable …
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Giant vesicles compressed by actin polymerization
… mimic the structural features of eukaryotic cell membranes. We find that Giant Vesicles coated with a protein that catalyzes actin polymerization form thick actin shells which produce a compressive force. The polymerization force directed at the membrane interface causes the membrane to rupture. …
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Structural Dynamics and Reaction Reversibility of Specific vs. Promiscuous Detoxification Enzymes
… the substrate-dependent structural dynamics of membrane-embedded CYP3A4 and CYP19A1, respectively, via hydrogen-deuterium exchange mass spectrometry and molecular dynamics simulations. Comparison of the structural dynamics of CYP3A4 bound to eight ligands reveals subtle and ligand-dependent …
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Molecular dynamics studies of membranes and membrane proteins
Properties of phospholipid membrane bilayers and of proteins associating and functioning in the membrane bilayer or at the membrane-water interface are studied by combining molecular dynamics simulations, free energy perturbation theory and continuum electrostatics calculations. Three systems were …
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Radiation damage assessment of atomically thin membranes
… results of gas transport across atomically thin membranes, which are relevant to reducing Tritium inventory in fusion reactors by separating Helium from the plasma exhaust stream. A novel experimental apparatus and set-up is devised to measure the gas transport rate across a membrane by …
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Multiscale Simulations of Phosphatidylinositol Bisphosphate: Understanding Its Biological Role Through Physical Chemistry
Proper functionality of biological membranes depends on the regulation of lipid composition and localization. Spatial localization of molecules within the lipid bilayer depends on both steric effects due to their acyl chains and attractive or repulsive interactions between lipid head groups, such …
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Microscopic and spectroscopic characterization of fuel cell catalyst layer materials and interfaces
Polymer electrolyte membrane fuel cells (PEMFCs) are a central technology for the decarbonization of the heavy-duty transportation sector and of industrial processes. This thesis is focused on detailed electron microscopy and x-ray spectroscopy characterization of composition and morphology of …
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Deconvoluting the Engineering and Assembly Instructions for Complex Iii Activity
In respiratory systems, membrane-bound Complex III catalyzes the oxidation of ubiquinone and the reduction of a soluble cytochrome with the bioenergetic formation of a transmembrane proton gradient (∆μH+). Complex III turnover is initiated by a unique two electron oxidation of ubiquinone at the Qo …
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Influence of the cell wall on the organisation and dynamics of intracellular components in Arabidopsis Thaliana
… the connection between the cell wall and plasma membrane was disturbed. Two image analysis techniques were developed to measure the dynamic remodelling of the actin cytoskeleton: Pairwise image subtraction and Cumulative fluorescence intensity. Both these analysis techniques showed that the actin …
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LITHOLOGIC AND HYDROGEOLOGIC CONTROLS ON THE OCCURRENCE, TRANSPORT, AND FATE OF MTBE IN FINE GRAINED GLACIAL-LACUSTRINE SEDIMENTS
… including cone penetration testing (CPT) and Membrane Interface Probe (MIP), were used to examine subtle changes in sand, silt and clay. These tests were supported by site coring, grain size analyses, and lab and field hydraulic conductivity testing. CPT results revealed glacial diamict …
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LITHOLOGIC AND HYDROGEOLOGIC CONTROLS ON THE OCCURRENCE, TRANSPORT, AND FATE OF MTBE IN FINE GRAINED GLACIAL-LACUSTRINE SEDIMENTS
… including cone penetration testing (CPT) and Membrane Interface Probe (MIP), were used to examine subtle changes in sand, silt and clay. These tests were supported by site coring, grain size analyses, and lab and field hydraulic conductivity testing. CPT results revealed glacial diamict …
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THE ROLE OF CORONAVIRUS - HOST CELL MEMBRANE INTERACTIONS DURING VIRAL ENTRY AS MEDIATED BY CONSERVED REGIONS OF THE FUSION PEPTIDE
… and fusion of the virus with the host cell membrane, a process orchestrated by the Spike (S) protein. Within the S, the fusion peptide (FP) is a short, highly conserved domain that inserts into the host membrane, initiating membrane fusion, genome release and subsequent infection. Due to its …
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Membrane protein conformational dynamics and ligand-binding interactions in bacterial glycoconjugate biosynthesis
Membrane associated proteins are an essential component of the complex biochemistry that is carried out at the membrane interface and perform essential functions for cellular life. Biophysical characterization of protein structure-function relationships faces a unique set of challenges due to the …
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Determination of Optimum Tack Coat Application Rate for Geocomposite Membrane Use in Roads and Overlaid Bridge Decks
… may result in debonding. A new geocomposite membrane, which is comprised of a low modulus PVC layer sandwiched between two layers of nonwoven geotextile, has recently been introduced for use in highway systems for water impermeability and strain energy absorption. A laboratory testing program …
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The effects of exogenous application of abscisic acid and α,α'-dipyridyl on cold acclimation and physical characteristics of Pisum sativum 'Alaska' seedlings
Cold acclimation entails changes in membrane composition, osmotic adjustment, alterations in the cell wall-plasma membrane interface, sugar deposition, and changes in cell wall proteins. There is evidence that a rigid cell wall may be necessary for cold acclimation. Difficulties arise in studying …
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Biochemical Characterization of Glycan Assembly Pathway Enzymes
… assembly pathways that occur at the membrane interface. Despite the critical roles of glycans, our understanding of the glycome is quite incomplete. This thesis describes a biochemical approach that may be used to provide greater insight into both glycan structure elucidation as well …
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Interfacial modulation of protein function explored through atomistic molecular dynamics simulation
… For molecular events that occur at biological interfaces, MD is unique in being able to simultaneously probe small spatial and temporal scales. This unparalleled resolution offers unique insight to the specific interactions that govern interfacial processes. In the context of this dissertation, …
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Enhanced membrane distillation : analytical and deionization applications
Membrane distillation (MD) is a newer technology that is being investigated for applications such as seawater desalination and concentration of fruit and sucrose solutions. The major advantage of MD over traditional thermal distillation is that it requires a substantially lower thermal energy …
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COMPARATIVE ULTRASTRUCTURE OF APICAL CELLS AND DERIVATIVES IN BRYOPHYTES, WITH SPECIAL REFERENCE TO PLASMODESMATA
… inner wall layer abuts the plasma membrane. This layer has faint fibrous materials that extend from the plasma membrane to the fibrillar layer. Generally, as the cell wall ages it thickens, the fibrillar layer increases in width while the electron-lucent wall stays more or less …
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