Now showing items 431-440 of 443
Development of Photoelastic Methods Towards Study of Mechanical Aging of 2-Dimensional Granular Assemblies.
(2009)
Phototelasticity is a well-known method for experimental stress analysis of solid transparent materials. It has commonly been used to measure stresses from the analysis of photoelastic fringes. In this study, a test apparatus ...
Directing Vascular Cells by Cyclic Tensile Strain: Contextual Role in Angiogenesis.
(2008)
Mechanical stretch, a normal physiologic signal in the vascular system, regulates vascular development and regeneration, but the mechanisms underlying these endothelial (EC) and smooth muscle cell (SMC) responses remain ...
Computational Reaction-Diffusion Analysis of Cellular Systems for Tissue Engineering and Quantitative Microscopy.
(2009)
Reaction-diffusion mechanisms underlie communication of cells within and among themselves and also with their environment. In this thesis, I have developed computational approaches to better understand these mechanisms in ...
Brownian Dynamics Simulations of Dilute Polymer Solutions with Entanglements
(2007)
This dissertation describes the development of a bead-spring Brownian dynamics model for simulating the topological interactions between polymers and thin obstacles. We apply this method to electrophoretically translating ...
Mesoscale Modeling and Computer Simulation of Tethered Nanoparticle "Shape-Amphiphile" Assemblies.
(2009)
In this dissertation, we explore the use of polymer-tethered nanoparticles as a means to self-assemble highly ordered arrays of nanoparticles and nanometer-sized domains. We perform Brownian dynamics simulations to study ...
Multifunctional Carbon Nanotube Thin Film Composites by Layer-by-Layer Assembly Technique.
(2009)
Polymeric layer-by-layer (LBL) assembly offers a pathway for multifunctional / multicomponent materials with molecular-scale control of stratified structures. Among the wide variety nanoscale building blocks such as nanowires ...
Theoretical and Experimental Investigation of the Impact of Surfaces on DNA Melting Temperature.
(2009)
The design of microarrays rely on studies geared towards sequence-specific recognition between complementary probe and target molecules in bulk solution. However, this proves to be insufficient to understand the duplex ...
Electric and Microfluidic Manipulation of Molecules and Particles in Microfabricated Devices.
(2007)
Microfabrication technology has enabled traditional chemical and biological research to be performed at the micrometer scale, but the control of particles suspended in fluids and the fluids themselves remain a significant ...
Metal and Semiconductor Nanoparticle Self-Assembly.
(2009)
The field of nanotechnology is rapidly growing and faces numerous challenges to its further growth and development. Many new types of nanomaterials and applications for these materials have been developed recently; however, ...
Heterogeneous Catalysis by Gold: The Effect of Oxide Support, External Conditions, and the Metal/Oxide Interface.
(2009)
Bulk Au is inert. However, when dispersed as small particles on an oxide support its chemistry changes dramatically, and can become active in many catalytic reactions. This unprecedented change in Au chemistry is still not ...