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 10 of 10 for “"Surface forces Apparatus"”.
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Surface forces apparatus (SFA) studies on n-octadecyltriethoxysilane self-assembled monolayers on untreated and plasma-treated mica
… and quantitatively investigated with a surface forces apparatus (SFA) under various environmental conditions The interaction force between the OTE monolayers immersed in water showed that plasma treatment reduced the range of the steep short-range repulsion and motivated the water vapor …
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Relaxations in molecularly thin simple liquid films: Linear viscoelasticity and non-linear response to shear
… simple liquid films confined between two solid surfaces were studied. The method was to measure the resistance to applied oscillatory shear deformation as a function of frequency and amplitude of deformation, film thickness and normal pressure using the modified surface forces apparatus …
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Molecular Insights on the Boundary Behavior of Liquids
… platform was developed by combining the surface forces apparatus with a fluorescent technique called the fluorescence recovery after photobleaching to shed light onto the molecular origin of the unique dynamics of a confined polymer melt. The effects of two very fundamental factors, …
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The Nanogate : nanoscale flow control
… notably the atomic force microscope and the surface forces apparatus, have been used extensively to investigate very short range molecular phenomena. In this thesis, the design, fabrication and characterization of a novel gas and liquid flow control device called the Nanogate is described. …
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Biophysical Studies of Pathogen Recognition by C-Type Lectins
… specific oligosaccharide structures on pathogen surfaces through the CRDs. However, the lectin-carbohydrate interactions are exploited by pathogens to infect host cells. To understand the rules that govern pathogen recognition by lectins in more depth, I first investigated the effect of ligand …
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Relaxations in molecularly thin simple liquid films:linear viscoelasticity and non-linear response to shear
… simple liquid films confined between two solid surfaces were studied. The method was to measure the resistance to applied oscillatory shear deformation as a function of frequency and amplitude of deformation, film thickness and normal pressure using the modified surface forces apparatus …
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The Surface Charge of Soft and Hard Sphere Colloidal Particles - Experimental Investigation and Comparison to Theory
… the thermal energy, the method was termed microsurface potential measurements (MSPM). We then used the MSPM to measure the potential at the outer Helmholtz plane (oHp), the diffuse potential, which determines the electric double layer of surface charged colloidal particles. The MSPM were …
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Effects of long-chain surfactants, short-chain alcohols and hydrolyzable cations on the Hydrophobic and Hydration Forces
… aqueous media can be predicted by the sum of two surface forces, i.e., the electrical double-layer and van der Waals forces. This theory, which was developed 50 years ago, served as a backbone for colloid chemistry. However, various experiments conducted in recent years showed that it is …
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Softmatter tribology: Understanding the microstructure to property relationships of hydrogel-like materials
… is provided by sparsely crosslinked, polymeric surface layers imbibed with an aqueous lubricant. A prominent biological tribosystem is the articular cartilage, an avascular tissue consisting of an extracellular matrix made of collagen fibrils and proteoglycans, with a small number of chondrocyte …
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Polymer dynamics and fluctuations probed with fluorescence methods
The arc of the thesis is direct measurement of polymer chain properties with potent fluorescence methods imported from other interdisciplinary sciences and applied successfully to polymer physics problems for the first time. The focus is an important theme in equilibrium polymer physics - chain …