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 25 for “"Patterned-Surfaces"”.
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Multicellular self-assembly on patterned surfaces
… using a simple patterning technique to prepare surfaces with alternating regions that supported variable cell response. First, the influence of certain biophysical parameters that may govern multicellular assembly of a single cell type on patterned surfaces was quantitatively investigated. For …
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Simulation and experimentation of droplets on micro-patterned surfaces
… geometric information of droplets deposited on patterned surfaces. Deformation of the droplet in response to discrete features in the contact plane was examined and quantified on an energy basis. Additionally, quasi-static simulation of relative movement between droplet and substrate was …
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Simulating the Motion of Droplets on High-Slip Patterned Surfaces
… due to micro- and nano-scale structures on their surfaces, a property that may have evolved to clean the leaves by encouraging water droplets to bead up and roll off. Patterned superhydrophobic surfaces can also exhibit reduced friction, and liquids flowing over such surfaces have been found to …
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Evaluating the use of laser processing and polishing techniques to generate micro-patterned surfaces for controlling fibroblast cell behaviour
… in a directional manner resulted in polyurethane surfaces having a ploughed field effect with micron-scale features a novel surface. In contrast, abrasive polishing in a directional and random manner resulted in polyurethane surfaces having sub-micron scale features orientated in a linear or …
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Creating a Map for Surgeons: Direct Blotting Assisted Stamping of Tissue for MALDI Imaging Mass Spectrometry
… and storage we explore the development of patterned surfaces able to obtain a chemical profile of tissue via direct contact imprinting. This can yield spatial chemical information about imprinted tissue histopathology without the need for embedding, sectioning, or storage. Multiple …
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Nano-engineering the boiling surface for optimal heat transfer rate and critical heat flux
… impact on CHF and the heat transfer coefficient. Surfaces were also patterned with hydrophobic "islands" within a hydrophilic "sea" by coupling the Layer-by-layer nanoparticle coatings with an ultraviolet ozone technique that patterned the wettability of the surface. The patterning was an attempt …
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Optimization of Patterned Surface Structures
… advances a recent work on the optimization of patterned surface structures used for architecture and structural engineering. On their own, well-designed surface structures--such as plates and shells--can be highly efficient, but by introducing specific aperture patterns, designers can further …
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Controlling Surface Chemistry on the Microscopic and Nanoscopic Scale through Photopatterned Self-Assembled Monolayers
… Microscopic and Nanoscopic Scale through Photopatterned Self-Assembled Monolayers</p><p>by</p><p>Matthew J. Hynes</p><p>Doctor of Philosophy in Chemistry</p><p>Washington University in St. Louis, 2013</p><p>Professor Joshua A. Maurer, Chair</p><p>The development of new patterning strategies for …
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The Development of Microfluidic Devices Fabricated From Poly(dimethyl) Siloxane
… and wet etching techniques to generate patterned surfaces."
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New polymeric biomaterial interfaces for biosensor applications
… examined two PEO-based biomaterials that can be patterned to generate cellular array templates: poly(allylamine)-g- poly(ethylene glycol) graft-copolymer and poly(ethylene glycol) dimethacrylate hydrogel. Poly(allylamine)-g-poly(ethylene glycol) polycation graft-copolymers were designed, …
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Nucleic base-directed adsorption of colloids and polyelectrolytes
… surface arrays by chemical patterning of surfaces is of great interest for the creation of nano- and micro-scale features without the costs and constraints of traditional lithography. Previous work in this group having demonstrated the patterning of polyelectrolyte multilayers by assembly …
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Development of Patterned Self-Assembled Monolayers Toward the Study of Axonal Differentiation
… techniques and new methods for the production of patterned surfaces for protein and cell confinement. These well-defined substrates allow us to study the mechanism of axonal differentiation in neurons confined to a two-dimensional starburst pattern. We utilize self-assembled monolayer: SAM) …
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Optical Modeling And Analysis Of Disordered Plasmonic Nanoparticle Ensembles
… devices. However, compared with precisely patterned surfaces commonly used for device fabrication, the structural inhomogenity and disorder in nanoparticle ensembles give rise to challenge in their characterization using conventional methods and in turn, their application. This work aims to …
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Apprehension of Resistive Characteristics of Plasma Ionized Hybrid Nano Fibrous Silicon
… with the conventional way of manufacturing nano patterned surfaces. Also, it indicated immense potential of nano structured surface as a sensing surface for numerous applications. Without using any complex and expensive conventional nano manufacturing method, synthesis of Hybrid Nano fibrous …
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A constitutive theory for the mechanical response of amorphous metals at high temperatures spanning the glass transition temperature : application to microscale thermoplastic forming of Zr₄₁.₂Ti₁₃.₈Cu₁₂.₅Ni₁₀Be₂₂.₅
… processes for the manufacture of micro-patterned surfaces.
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Colloid phenomena in surface-modified polymer systems.
… of techniques to study modified polymer surfaces. Scanning probe microscopy (SPM) is used throughout this work as an experimental platform for the development of advanced techniques for the characterisation of polymer surfaces and adsorbed protein layers. A new method for the modification …
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Fabrication of Micropatterned Hydrogels for Cell Culture
… investigated in variety of approaches. How the patterned surfaces affect cell behaviour is discussed in our literature review. From the experimental results, agarose and polyethylene (glycol) diacrylate are successfully fabricated and their micropatterned hydrogels show promising properties. In …
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New paradigm to design micro and nano-patterned membranes
… a brand new technology to create micro- and nano-patterned surfaces that is compatible with a wide variety of chemical compounds. A proof of concept is introduced with the first prototypes of wrinkled surfaces created with Initiated Chemical Vapor Deposition; Stiff polymeric coatings form wrinkles …
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Spectral Signature Modification By Application Of Infrared Frequency-selective Surfaces
… measurement methods are utilized to study the patterned surfaces, including infrared spectral radiometry and Fourier-transform infrared spectrometry. These systems allow for direct and complementary spectral signature measurements--the radiometer measures the absorption or emission of the …
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