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 477 for “"Hydrophobicity"”.
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Bio-inspired surface engineering for hydrophobicity
… structures on plant leaves with respect to their hydrophobicity in the context of the often arid Australian climate. The relationships between leaf surface structures and their hydrophobicity could inform the making of artificial surfaces with specially designed hydrophobicity. Moderate …
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DEVELOPMENT OF MAGNETIC FABRICS WITH TUNABLE HYDROPHOBICITY
… were fabricated by electrospinning and the hydrophobicity of the resulting magnetic fabrics was investigated with and without an applied magnetic field. The results show that the hydrophobicity (as measured using water droplet contact angle) increases in the presence of a magnetic field and …
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Intrinsically Disordered Protein Polymer Libraries as Tools to Understand Protein Hydrophobicity
… based framework for understanding IDPP hydrophobicity using the relationship between phase transition temperature and globule surface tension. This physics-based framework has allowed us to better understand the unified contributions of chain length, concentration, temperature, and …
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Characterization and Implications of Surface Hydrophobicity in Nanoparticle Fate and Transport
… One premise of this research is that surface hydrophobicity is a pivotal property of NP surfaces that can affect the behavior of NPs in aquatic environment and potentially decide the fate and transport of NPs. However, there are multiple challenges in the characterization of hydrophobicity for …
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Examining the role of water and hydrophobicity in folding, aggregation, and allostery
Solvation and hydrophobicity drive many critical processes in nature, playing an important role in the folding of proteins, aggregation of surfactants into micelles, and in the disorder to order transitions that occur in some allosteric proteins upon ligand binding. Understanding how solvation and …
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Remediation of Soil Hydrophobicity on a Coastal USGA Sand-Based Golf Green
Managing soil hydrophobicity caused by localized dry spots (LDS) on sand based golf greens has become one of the greatest challenges for golf course superintendents and managers, especially as water restrictions intensify. The purpose of this study was to evaluate the effectiveness of thirteen soil …
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Application of Extended DLVO Theory: Modeling of Flotation and Hydrophobicity of Dodecane
… two surfactant ions at interface, thus the hydrophobicity of oil/solution interface was less sensitive to the addition of the surfactant than that of air/solution interface. Thermodynamic analysis suggested that, there might exist a relationship between the interfacial hydrophobicity and the …
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Effect of hydrophobicity and surface roughness on two-phase flow in rectangular microchannels
… in rectangular microchannels as a function of hydrophobicity, surface roughness, and bubble size. The SU-8 channels are fabricated using photolithography to ensure a perfectly smooth surface, which eliminates the effect of surface roughness. The fabricated channels are treated to alter the …
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Towards the Design of an oligoTEA Endosomal Escape Agent: Investigations in Hydrophobicity and pKa
… of an oligoTEA endosomal escape agent. pKa and hydrophobicity are two key parameters routinely used in assessing the viability of new drug delivery candidates. From partitioning data, bulk microscopic measurements of pKa and hydrophobicity were determined for a library consisting of oligoTEAs of …
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Bio-geochemical markers surrogated to fire induced hydrophobicity. Model system: Doñana National Park sandy soils
Los incendios forestales son un factor de perturbación importante en muchos ecosistemas terrestres, especialmente en las zonas europeas de clima Mediterráneo. Esto se debe a la confluencia de condiciones climáticas, ecológicas y socio-económicas específicas. El fuego produce cambios importantes en …
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Hydrophobicity of rare-earth oxide ceramics and their application in promoting sustained drop-wise condensation
… hydrogen bonding and thereby reduce their hydrophobicity. Using X-ray Photoelectron Spectroscopy (XPS) and wetting measurements, surface stoichiometry and surface relaxations have been shown to impact wetting properties of REOs. Specifically, freshly sputtered ceria is shown to be …
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Statistical physics and biological information : hydrophobicity patterns in protein design and differential motif finding in DNA
… most pronounced at long periods, where sequence hydrophobicity fluctuates less, while solvent accessibility fluctuates more than average. Correlations between the two profiles can be interpreted as the Boltzmann weight of the solvation energy at room temperature. Chapter 4 shows that correlations …
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Impact Dynamics of Water Droplet on Solid Surfaces: Effect of Impact Reynolds Number, Hydrophobicity, Surface Roughness and Temperature
One of the most complicated issues the aerospace and aviation industries are dealing with is aircraft icing. The impact and freezing process of a water droplet on a cold surface has been investigated over time in order to develop preventative methods for avoiding icing. In the present study, we …
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Development of an analytical method to derive hydrophobicity parameters for use as descriptors for the prediction of the environmental and human health risk of chemicals
… for toxicity require knowledge of a chemicals hydrophobicity. Traditionally hydrophobicity has been characterised by the logarithm of the octanol/water partition coefficient (log P). Current experimental and predictive methods are limited in terms of applicability for compounds with extreme log …
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Surface Characteristics of Bacillus Spores
… were isolated, purified and characterized for hydrophobicity by hexadecane partitioning, surface morphology by scanning electron microscopy, and steady-state fluorescence by spectroscopy. The morphology of spores was similar within taxonomic groups and dissimilar between groups. Spore …
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Zein films as substrates for cell attachment
… coated with zein films. It was reported that the hydrophobicity and topography of substrates are important for cell attachment. Therefore, a secondary hypothesis was that the hydrophobicity and topography of zein substrates could be optimized for cancer cell attachment. The hydrophobicity of zein …
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Effect of particle properties on froth stability
… of two main particle properties, i.e. size and hydrophobicity, and their interactive effects on froth stability. In order to establish relationships between particle properties and froth stability, two devices were built in the laboratory, i.e. a non-overflowing stability column to measure froth …
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Effect of Ultrasonication on Biofilm Forming Ability of Common Dairy Sporeformers
… injured cells recovery, zeta potential and hydrophobicity of common dairy sporeformers. Three different bacteria, <em>Geobacillus stearothermophilus</em> (ATCC®15952), <em>Bacillus licheniformis</em> (ATCC® 6634), and <em>Bacillus sporothermodurans</em> (DSM 10599) were selected for this …
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