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 42 for “"Solid substrates"”.
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Computational Modeling of Droplet Impact Dynamics on Solid Substrates
… to simulate the impact dynamics of a droplet on solid substrates with the purpose of predicting the droplet spreading characteristics over time. Previous studies focused on finding relations between the impact parameters and outcome dynamics. A modified approach like the one used in this project …
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Poly(L-Lactic Acid) Langmuir Monolayers at the Air/Water Interface and Langmuir-Blodgett Films on Solid Substrates: Phase Behavior, Surface Morphology, and Crystallinity
… of crystallinity of poly(L-lactic acid) (PLLA) substrates have recently attracted considerable attention because of their applications in cell adhesion, tissue engineering, and drug delivery. Several techniques have been used to fabricate PLLA substrates, some of which may be invalid because …
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Role of lattice heterogeneity and roughness in the establishment of the critical surface tension ([gamma][subscript c]) of wetting of naturally-hydrophobic solid substrates, The
Includes bibliographical references (pages 125-131).
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Displacement of Fluid Droplets From Solid Surfaces
The displacement of fluid droplets from solid substrates is a fundamental problem of fluid mechanics. This problem has application in coating operations, enhanced oil recovery and vapor condensation. Our goal is to predict the yield conditions (capillary number Ca) as a function of physical …
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Control of the self-assembly of alkanethiol-coated gold nanoparticles in the solid state
… in the films, which are then transferred to solid substrates for observation. Unfortunately, none of these approaches is able to reduce the defect concentration in a lattice, although thermal treatment and sonication of Langmuir-Schaeffer nanoparticle films are found to provide a controllable …
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Excitons in Self-Assembled Hybrid Systems of Molecular Aggregate Light-Harvesting Nanotubes: Charge-Transfer Substrates and Solution-Stabilized Nanocomposites
… upon isolation from solution and deposition onto solid substrates. Near-field scanning optical microscopy revealed nanoscale emission of substrate-isolated aggregates was substantially altered after several hours of deposition, suggesting the stability of substrate-immobilized molecular aggregates …
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Multi-scale structural design of titanium implants for improved osseointegration
… micro- and nano-roughness on Ti and Ti-6Al-4V substrates contribute to increased wettability and can be tailored to affect cell response. Additive manufacturing can produce three dimensional constructs with natural, trabeculae-inspired porosity. Osteoblasts and mesenchymal stem cells are …
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Study of Phospholipid/Graphene interfaces and the effect of substrate curvature on lipid morphology and dynamics.
… have been known to form stable interfaces with solid substrates like graphene, and these interfaces have potential applications in bio-sensing and targeted drug-delivery. In this paper, we perform molecular dynamics simulations of graphene supported lipid monolayers to characterize lipid …
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Disruption of microorganisms due to agitation in slurries of fine particles
… of particulates in bioprocesses, in the form of solid substrates or support systems for attached growth, further complicate the hydrodynamic conditions. The knowledge of the effect of particulates on microorganisms is an important priority.
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Controlling crystallization via interfacial engineering : patterning, fouling-inhibition, and nutrient recovery
… phase boundaries. Control of crystallization on solid substrates is accomplished by modification of the surface morphology, length scale of surface features, surface chemistry, and surface energy. In this thesis I demonstrate that interfacial engineering can be used to prevent mineral fouling …
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Multilayered supramolecular structures: Two-dimensional polymers and polar assemblies
… These assemblies stack spontaneously on solid substrates over macroscopic distances and form self-assembled surfaces. Moreover, the substrate seems to guide the stacking direction of the layers. Upon thermal crosslinking of the isoprene middle sector, these assemblies yield 2D polymers …
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Characterization of polystyrene-block-poly (acrylic acid) micelles
… (PS-b-PAA) in organic solvents or assembled on solid substrates have been investigated. The micelles were characterized in the solvated state using Dynamic Light Scattering, and were imaged and characterized in the dry thin film state using Atomic Force Microscopy. Micelle size in solution …
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ΜΕΛΕΤΗ ΤΗΣ ΥΔΡΟΛΥΣΗΣ, ΤΗΣ ΠΡΟΣΡΟΦΗΣΗΣ ΚΑΙ ΤΗΣ ΔΙΑΣΠΑΣΗΣ ΤΩΝ ΦΥΤΟΦΑΡΜΑΚΩΝ METHYL-PARATHION, LINDANE ΚΑΙ ATRAZINE ΣΕ ΦΥΣΙΚΑ ΥΠΟΣΤΡΩΜΑΤΑ
… ASH, RED MUD AND Γ-ALUMINA. THE ABILITY OF THESE SOLID SUBSTRATES FOR ADSORPTION AND DEGRADATION WAS PROVED THAT IT DEPENDS ON THEIR CHEMICAL FORMATION AND THEIR BASIC PHYSICOCHEMICAL CHARACTERISTICS (PH, SPECIFIC SURFACE AREA, NUMBER OF ACID SITES AND THE ZERO POINT CHARGE). IN CONDITIONS AND IN …
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Templated aqueous synthesis of inorganics within carboxyl-containing block copolymer domains
… copolymer reverse micelles from toluene onto solid substrates, consisted of lateral hexagonal arrays of spherical PAA domains in PS matrices. It was shown that hydration and swelling of PAA upon treatment in a monovalent base (NaOH) aqueous solution led to a cavitation process that exposed the …
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Novel Growth of Chemical Vapor Deposited Graphene on Molten Tin Metal
… studies have reported CVD graphene growth on solid substrates with recent developments on the use of liquid substrates. However, while there are many studies reporting growth on solid and liquid copper substrates, no study has reported mass production of graphene combined with uniform film …
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Characterization and Engineering of the Process of Directed Particle Self-assembly in Thin Films and Sessile Droplets
… of colloidal particles confined between a solid and liquid interface has been studied as a versatile tool for organizing 2D and 3D crystalline arrays on solid substrates. The overarching goal of this study was to engineer the process of assembly to achieve simple and cost effective …
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Site-specific immobilization of tetrazine-modified green fluorescent protein on trans-cyclooctene surfaces
… (chemisorption) of peptides and proteins to solid substrates has long been achieved, many of the procedures utilized are generally limited to schemes and reaction steps that can be detrimental to biological systems. Furthermore, while the attachment is covalent, the point(s) of attachment on …
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Wetting kinetics in forced spreading
… angle (the angle that the liquid makes with the solid) of a liquid on a solid surface varies dramatically with substrate velocity from its equilibrium value. Experimental data of the dynamic contact angles for polydimethylsiloxane (PDMS or silicone oil) under air on a glass substrate coated with …
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A novel hypothesis for plant capacitance
… and tested with cereal plants growing in solid substrates. Capacitances of plants in various substrates were measured under contrasting water regimes. Substrate capacitances increased with increasing water content. At water contents approaching field capacity, substrate capacitances were …
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The role of quenched disorder, interfaces and confinement on the glassy dynamics of colloidal suspensions, thermal liquids and films
… are also used to describe caging constraints at solid substrates in supported films. Second, I propose an improved treatment of collective elasticity effects in films to capture geometric asymmetry due to modified boundary conditions. Third, a new theory is constructed for how the local dynamic …
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