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.
Results
Showing 1 to 20 of 49 for “"Molecular transport"”.
-
Polymer Brushes for Molecular Transport
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2005.
-
Selective molecular transport in nanopore systems
… Third, I introduce the first simulation of molecular artificial water channel pillar[5]arene (PAP) and uncover the mechanics of its water transport and self-aggregation properties. Fourth, I characterize the water permeability and ion rejection of truncated human membrane protein aquaporin-1 …
-
Molecular transport properties of sodium/dicarboxylate cotransporters
The Na+/dicarboxylate cotransporter (NaDC1) plays important roles in absorption of citric acid cycle intermediates from the intestinal and renal tubular lumen. NaDC1 influences the homeostasis of citrate, which may be associated with the formation of kidney stones. The studies in this dissertation …
-
A unified model of electroporation and molecular transport
… These pores facilitate electrical and molecular transport across cell membranes that are normally impermeable. By applying pulsed electric fields to cells, electroporation can be used to deliver nucleic acids, drugs, and other molecules into cells, making it a powerful research tool. …
-
Functional gel for directed molecular transport and sensor applications
A facile approach to transport and concentrate molecules to specified regions on a substrate will enhance the potential to detect such molecules and to establish a miniaturized, integrated chemical-analysis system. This dissertation focuses on the establishment of molecular transport systems in …
-
Influence of environmental factors on molecular transport through bacterial membranes
… act as protective barriers and help to regulate molecular interactions between a cell and its surrounding environment. External chemical and physical influences have the potential to alter the properties of bacterial membranes and therefore impact the viability of the cell. This can stem from …
-
Molecular transport in nanopores with fluctuations, deformation, and potential leakage
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
-
Utilizing Nanoporous Alumina Membranes for Molecular Transport and Silica Nanotube Synthesis
… a variety of different substituted silanes. The transport of ions through these treated membranes was studied using several analytical tools such as ultraviolet-visible and fluorescence spectroscopy. The surface characteristics of the membrane were studied using a scanning electron microscope …
-
Development of experimental methods to measure osmosis-driven water flux and molecular transport across nanoporous graphene membranes
… next generation high flux separation membrane. Molecular dynamics simulations predicted graphene's potential for exhibiting both high flux and selectivity as water desalination and gas separation membranes. Measurement of diffusive transport of water and molecules demonstrated the feasibility of …
-
Nanoscale Hydrogel Films and Polymer Brushes Grafted Onto Nanocapillary Array Membranes for Externally Controllable Size -Selective Molecular Transport
… morphology and the Au plating rates on NCAMs. Molecular transport through the PNIPAAm polymer brush-modified NCAMs was investigated by real-time fluorescence measurements using fluorescein isothiocyanate (FITC) labeled dextrans.
-
Electronic detection of molecules on the exterior and molecular transport through the interior of single walled carbon nanotubes
… of SWNT is readily disrupted even by a single molecular binding event. Hence, one of the promising SWNT applications has been sorption-based sensors utilizing the exterior. Conversely, the interior of SWNT can potentially be used as a frictionless molecular conduit due to graphitic surface …
-
Non-Equilibrium Transport Across Liquid Membranes Using Coordination Cages
… within bulk liquid membrane systems limits molecular transport efficiency to 50%, hindering widespread adoption. This thesis addresses this limitation by innovatively propelling compound transport away from equilibrium, utilizing light and chemical gradients. The first system investigates …
-
Functionalized hydrogel systems for molecular sensing and transport
… hydrogel properties for applications in molecular sensing and transport. There are two focus areas under the hydrogel theme within this dissertation. The first area is focused on the design, synthesis, and characterization of hydrogel glucose sensor materials with a liner fast response, …
-
Transport of n-alkanes through graphene nanoporous atomically thin membrane
Accurately characterizing molecular transport through a nanoporous atomically thin graphene membrane is important in determining potential for graphene's application as a filter. Amongst many factors that affect the transport, the effect of size of molecules is analyzed in this paper. Diffusion of …
-
Studies on the hydrodynamic equations based on the theory of diffusive volume transport
… gradients in the fluid resulting from the molecular transport of heat or mass. In such cases, the Navier-Stokes equations are unable to correctly predict the continuum fields and observed flow phenomena. A new set of continuum equations has been postulated to take into account density …
-
Empirical Nanotube Model: Applications to Water Channels and Nano -Oscillators
… nanotubes, which plays a key role in determining molecular transport dynamics through nanotubes. In the proposed model, atomic partial charges are calculated from a quantum chemistry approach, and the polarizability of the nanotube is modeled through a self-consistent tight-binding method. The …
-
Gate potential control of nanofluidic devices
… effect transistors (FET) in microelectronics, molecular transport in micro/nanofluidic channels can be controlled by applying external potentials on the wall of the fluidic channel. In nanofluidic devices, this type of control is expected to be more efficient due to its high surface to charge …
-
Analysis of gas differential diffusion through porous media using prompt gamma activation analysis
Accurate estimates for the molecular transport coefficients are critical to predicting the movement of gases in geological media. Here I present a novel methodology for using prompt gamma activation analysis to measure the effective diffusivity of noble gases in a porous medium. I also present a …
-
Efficient New Computational Protein Design Algorithms, with Applications to Drug Resistance Prediction and HIV Antibody Design
… biological functions, including DNA replication, molecular transport, catalysis, and antigen recognition. Protein function is determined by three dimensional structure, which is largely determined by amino acid composition. The functional diversity of known proteins suggests that nature can …
-
Function and Regulation of the Cell Fate Determinant Numb in Polarized Epithelial Cells
… numerous cellular processes including migration, molecular transport, and cell division. The establishment and organization of polarity is crucial to the maintenance of cellular homeostasis in mammalian systems. Deregulation of cell polarity is observed in disease states, including cancer. Numb is …
Page 1 of 3