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Dissertation238
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Eric Fridstein Manley2
Aaron W Miller1
Abdallah Bachir Diagne1
Abigail K. R. Lytton-Jean1
Adam Patrick Ashwell1
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Chemistry29
Inorganic Chemistry11
Catalysis10
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Physical Chemistry8
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Understanding Stabilization of Noncentrosymmetric Inorganic Phases by Analysis of Static Structures and Dynamic Processes

Description:

The properties of crystalline materials are controlled by their composition and by their structure, however, the structure of a crystal is only partly controlled by its composition. Development of specifically directed inorganic syntheses will require an understanding of the dynamics of crystal phase forming processes, especially those processes involved in...

Keyword:

crystal, noncentrosymmetry, reconstructive transition, and oxyflouride

Subject:

Chemistry

Creator:

Michael John Holland

Owner:

Scholarly Digital Publishing

Date Uploaded:

02/13/2018

Date Modified:

02/13/2018

Date Created:

2016-01-01

Resource Type:

Dissertation
Inhibitors of the Ubiquitin Ligase Nedd4-1 Discovered by Covalent Fragment Screening

Description:

The FDA approvals of afatinib and ibrutinib in 2013 led to a heightened interest in cysteine-reactive covalent inhibitors. However, there are few methods to discover new cysteine-reactive inhibitors for enzymes for which reversible binding scaffolds are not known. To this end, we rationally designed a chemical system to attach a...

Keyword:

Covalent, Fragment, Ubiquitin, Electrophile, and Nedd4-1

Subject:

Chemistry

Creator:

Stefan Kathman

Owner:

Scholarly Digital Publishing

Date Uploaded:

02/19/2018

Date Modified:

02/19/2018

Date Created:

2016-01-01

Resource Type:

Dissertation
Probing Excited State Dynamics in Metalloporphyrins and Hemoproteins with X-Ray Transient Absorption Spectroscopy

Description:

Metalloporphyrins fulfill incredibly diverse chemical roles in biology and photocatalysis, where they act as photosensitizers, redox sites, substrate binding sites, and facilitators of long range electron transfer. Metalloporphyrin chemistry is uniquely tuneable through conformation and functionalization of the porphyrin ring, choice of metal, and interaction with the environment as these...

Keyword:

Metalloporphyrin, X-ray Absorption Spectroscopy, Structural dynamics, Pump-probe spectroscopy, Hemoprotein, and X-ray free electron laser

Subject:

Chemistry

Creator:

Megan Lynn Shelby

Owner:

Scholarly Digital Publishing

Date Uploaded:

02/19/2018

Date Modified:

02/19/2018

Date Created:

2016-01-01

Resource Type:

Dissertation
Advances in Fundamental Single Molecule Studies with Surface-Enhanced Raman Spectroscopy

Description:

Surface-enhanced Raman spectroscopy (SERS) is a powerful technique for characterizing molecular systems. It combines the chemical selectivity of vibrational spectroscopy with plasmonic signal enhancement to achieve the ultimate limit of detection--a single molecule. By overcoming the effects of ensemble averaging, single molecule SERS (SMSERS) probes distributions in molecular interactions and...

Keyword:

SERS, SMSERS, hot spots, and Single Molecule

Subject:

Chemistry

Creator:

Alyssa Zrimsek

Owner:

Scholarly Digital Publishing

Date Uploaded:

02/19/2018

Date Modified:

02/19/2018

Date Created:

2016-01-01

Resource Type:

Dissertation
Using Myoglobin as a Workbench Protein to Study Binding and Reactivity in Electron Transfer Complexes

Description:

Interprotein electron transfer (ET) occupies a central role in both chemistry and biology, as it is important in a variety of functions including cellular respiration, metabolism, and energy transduction during photosynthesis. Consequently, understanding the protein-protein recognition and docking that controls interprotein ET is an important field of scientific research. One...

Keyword:

protein binding, myoglobin, and electron transfer

Subject:

Chemistry

Creator:

Jon Vander Woude

Owner:

Scholarly Digital Publishing

Date Uploaded:

02/21/2018

Date Modified:

02/21/2018

Date Created:

2016-01-01

Resource Type:

Dissertation
Advances in Normal and Surface-Enhanced Raman Spectroscopy for Single-Molecule Electrochemistry and Non-Invasive Molecular Sensing

Description:

Raman spectroscopy is an established and versatile molecular sensing technique, but it is limited by its modest chemical sensitivity. Surface-enhanced Raman spectroscopy (SERS) can amplify otherwise weak normal Raman signals up to nine to ten orders of magnitude, giving rise to its application in many molecular sensing problems, including those...

Keyword:

Raman spectroscopy, SERS, electrochemistry, and spectroelectrochemistry

Subject:

Chemistry

Creator:

Stephanie Zaleski

Owner:

Scholarly Digital Publishing

Date Uploaded:

02/26/2018

Date Modified:

02/26/2018

Date Created:

2016-01-01

Resource Type:

Dissertation
Manipulation of Intermolecular Interactions for Active Layer Morphology Optimization in Organic Photovoltaics

Description:

Organic photovoltaics (OPVs) are an attractive solar energy technology for low-current applications. Herein is described the supramolecular design and methodology to manipulate intermolecular interactions in order to create an active layer in OPVs devices composed of crystalline and amorphous donor-acceptor domains, which has been proposed as the ideal morphology for...

Keyword:

Organic Solar Cella, Supramolecular, and Hydrogen-bonding

Subject:

Chemistry

Creator:

Leonel Barreda

Owner:

Scholarly Digital Publishing

Date Uploaded:

02/27/2018

Date Modified:

02/27/2018

Date Created:

2017-01-01

Resource Type:

Dissertation
Examination and Mitigation of Electron Interception Processes in Dye-sensitized Solar Cells through Redox Shuttle and Photoelectrode Modification

Description:

With the dual challenges of meeting global energy demand and mitigating anthropogenic climate change, significant effort is being applied to generating power from renewable sources. The dye-sensitized solar cell (DSC) is a photovoltaic technology capable of generating electricity from sunlight, but suffers losses in efficiency due to deleterious electron transfer...

Keyword:

Physical Chemistry, Alternative Energy, and Material Science

Subject:

Chemistry

Creator:

William L. Hoffeditz

Owner:

Scholarly Digital Publishing

Date Uploaded:

03/13/2018

Date Modified:

03/13/2018

Date Created:

2017-01-01

Resource Type:

Dissertation
Three- and Two-Dimensional Tin and Lead Halide Perovskite Semiconductors: Synthesis and Application in Photovoltaics

Description:

Halide perovskites, AMX3 (A = monocation, B = Ge, Sn, or Pb, and X = halogen), present a versatile class of solution-processable semiconductors made from earth abundant materials with outstanding electrical and optical properties. Their solar cell efficiencies have dramatically increased from ~9% to ~22% in less than five years...

Keyword:

halide perovskites, semiconductors, solar cells, and two-dimensional

Subject:

Chemistry

Creator:

Duyen Hanh Cao

Owner:

Scholarly Digital Publishing

Date Uploaded:

04/02/2018

Date Modified:

04/02/2018

Date Created:

2017-01-01

Resource Type:

Dissertation
Ultra–Broadband Two–Dimensional Electronic Spectroscopy and Pump–Probe Microscopy of Molecular Systems

Description:

Ultrafast spectroscopy offers an unprecedented view on the dynamic nature of chemical reactions. From charge transfer in semiconductors to folding and isomerization of proteins, these all important processes can now be monitored and in some instances even controlled on real, physical timescales. One of the biggest challenges of ultrafast science...

Keyword:

Interferometry, Spectroscopy, Compressed Sensing, Perovskite, and Microscopy

Subject:

Chemistry

Creator:

Boris Spokoyny

Owner:

Scholarly Digital Publishing

Date Uploaded:

04/18/2018

Date Modified:

04/18/2018

Date Created:

2017-01-01

Resource Type:

Dissertation
Investigating the Surface Morphology and Stability of Heterogeneous Catalysts Synthesized by Atomic Layer Deposition

Description:

Heterogeneous catalysts play a prominent role in our society, used in applications that range from the production of plastics to the catalytic cracking of crude oil. Industrial catalysts are typically made of mixed metal oxides or nanosized metal particles deposited on high surface area supports. Industrially relevant catalytic materials are...

Keyword:

Atomic Layer Deposition, Spectroscopy, Catalysis, and Catalyst Design

Subject:

Chemistry

Creator:

Cassandra Marie George

Owner:

Scholarly Digital Publishing

Date Uploaded:

04/18/2018

Date Modified:

01/28/2019

Date Created:

2017-01-01

Resource Type:

Dissertation
Synthesis and Analysis of Secondary Organic Aerosol Constituent

Description:

Climate change may be one of the most important puzzles the world has attempted to solve and one of the greatest challenges in this area is to improve our understanding of how atmospheric aerosol particles impact climate processes. We seek to overcome this challenge by focusing on the chemistry and...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Mary Alice Upshur

Owner:

Scholarly Digital Publishing

Date Uploaded:

04/26/2018

Date Modified:

04/26/2018

Date Created:

2017-01-01

Resource Type:

Dissertation
The Influence of Surface Chemistry on the Optoelectronic Properties of Semiconductor Quantum Dots

Description:

This dissertation describes the relationship between the surface chemistry of colloidal semiconductor nanocrystals (quantum dots, QDs) and their optoelectronic properties, such as photoluminescence and degree of quantum confinement. We primarily focus our efforts on one particular subset of ligands known to couple strongly to the inorganic core of the QD...

Keyword:

dithiocabamate, ligand-ligand coupling, quantum dot, nuclear magnetic resonance, and exciton delocalization

Subject:

Chemistry

Creator:

Rachel Dory Harris

Owner:

Scholarly Digital Publishing

Date Uploaded:

04/26/2018

Date Modified:

04/26/2018

Date Created:

2017-01-01

Resource Type:

Dissertation
The Study of Quantum Dynamics in Photosystem I and Biologically Inspired Small Molecular Systems

Description:

Understanding the nature of quantum effects in dense biological systems is of great interestto many scientists today. It seems that the question is not does quantum mechanics dictatebiological processes, but rather by how much and to what extent. A big challenge though in thisfield is how to properly test and...

Keyword:

Quantum Mechanics, Redfield, Biology, Photosystem I, and Stochastic Surrogate Hamiltonian

Subject:

Chemistry

Creator:

Daniel Douglas Powell

Owner:

Scholarly Digital Publishing

Date Uploaded:

04/26/2018

Date Modified:

04/26/2018

Date Created:

2017-01-01

Resource Type:

Dissertation
Constrained Geometry Organoactinide Complexes: Scope and Mechanism of Intramolecular Hydroamination/Cyclization of Primary and Secondary Amines

Description:

In Chapter 1, a series of "constrained geometry" organoactinide complexes, (CGC)An(NMe)2 (CGC = Me2Si(h5-Me4C5)(tBuN); An = Th, 1; U, 2), prepared via efficient in situ, two-step protodeamination routes in good yields and high purity, is presented. Both 1 and 2 are quantitatively converted to the neutrally charged, solvent-free dihalides (1-Cl2,...

Keyword:

Chemistry and Inorganic (0488)

Subject:

Chemistry

Creator:

Bryan D Stubbert

Owner:

Scholarly Digital Publishing

Date Uploaded:

05/07/2018

Date Modified:

05/07/2018

Date Created:

2006-12-05

Resource Type:

Dissertation
Highly Conductive and Transparent Cadmium Oxide Thin Films Grown by MOCVD - Epitaxial Growth and Doping Effects

Description:

Four series of doped CdO thin films have been grown on both amorphous glass and single-crystal MgO(100) substrates by metal-organic chemical vapor deposition (MOCVD), and their phase structure, microstructure, electrical, and optical properties investigated. Epitaxial films grown on single-crystal MgO(100) exhibit biaxial, highly textured microstructures. These as-deposited doped CdO thin...

Keyword:

doping, TCO, CdO, Thin films, epitaxial, and MOCVD

Subject:

Chemistry

Creator:

Shu Jin

Owner:

Scholarly Digital Publishing

Date Uploaded:

05/07/2018

Date Modified:

05/07/2018

Date Created:

2006-06-20

Resource Type:

Dissertation
Homogeneous Metallocene-Mediated Propylene Polymerization: Catalyst Symmetry, Ion-Pairing, and Counteranion Effects on Polymerization Kinetics, Selectivity, and Specificity

Description:

Counteranion effects on the rate and stereochemistry of propylene polymerization mediated by ion-pair complexes derived from dimethylzirconocene precatalysts activated with strongly Lewis-acidic perfluoroarylmetalloid cocatalyst/activators are shown to arise from the strength of the cation-anion interaction. This is quantified using CS-symmetric Me2C(Cp)(Flu)ZrMe2 (Cp = C5H4, &#951;5 cyclopentadienyl; Flu = C13H8, &#951;5...

Keyword:

microstructure, ion pair, metallocene, polymerization, cocatalyst, and polyolefin

Subject:

Chemistry

Creator:

John Andrew Stevens Roberts

Owner:

Scholarly Digital Publishing

Date Uploaded:

05/09/2018

Date Modified:

05/09/2018

Date Created:

2006-11-28

Resource Type:

Dissertation
Investigation of Environmental Catalyst Local Structures by X-ray Absorption Spectroscopy

Description:

Local structure determination in amorphous and disordered systems, which are crystallographically intractable, is critical for gaining an understanding of their properties. X-ray absorption spectroscopy (XAS) is an excellent tool for local structure determination in amorphous and disordered environmental materials. Amorphous manganese oxides produced by the freshwater bacterium Leptothrix discophora SP6...

Keyword:

Biogenic manganese oxides

Subject:

Chemistry

Creator:

Ian Saratovsky

Owner:

Scholarly Digital Publishing

Date Uploaded:

05/10/2018

Date Modified:

05/10/2018

Date Created:

2006-12-22

Resource Type:

Dissertation
New Thiazolium-Based Strategies for Acyl Anion Addition Reactions

Description:

Two new strategies have been developed to accomplish direct nucleophilic acylation reactions. In the first approach, acylsilanes are added to various electrophiles using N-heterocyclic carbenes as catalysts. The second method utilizes O-silyl thiazolium carbinols as stoichiometric acyl anion precursors to afford acylated products under mild reaction conditions. N-heterocyclic carbenes generated...

Keyword:

Nucleophilic Acylation, N-Heterocyclic carbene, Acyl anion, and Thiazolium

Subject:

Chemistry

Creator:

Anita Mattson

Owner:

Scholarly Digital Publishing

Date Uploaded:

05/14/2018

Date Modified:

05/14/2018

Date Created:

2007-04-05

Resource Type:

Dissertation
Towards High Relaxivity Magnetic Resonance Imaging Contrast Agents for use in Biomaterials

Description:

High relaxivity contrast agents are of great importance in the advancement of magnetic resonance imaging diagnostics for use in biomaterials. Biomaterials that are implanted into the body, with the goal of repairing or regenerating lost or damaged tissue, need to be tracked noninvasively, over time. I have completed work using...

Keyword:

self-assembly, peptide amphiphile, MRI, dumbbell, and templation

Subject:

Chemistry

Creator:

Steve Bull

Owner:

Scholarly Digital Publishing

Date Uploaded:

05/30/2018

Date Modified:

05/30/2018

Date Created:

2007-05-11

Resource Type:

Dissertation
A Multi-Component Catalytic Assembly Reaction for the Synthesis of Nitrogen-Containing Heterocycles and Umpolung Transformations of Aldehydes and Acylsilanes

Description:

A catalytic, multi-component coupling reaction for the synthesis of nitrogen-containing heterocycles has been developed, via the reaction of an imine, &#945;-diazoester and unsaturated coupling partner in the presence of a copper(I) or rhodium(II) transition metal catalyst with excellent diastereo-selectivities and high yields. The transition metal-catalyzed decomposition of a diazo compound...

Keyword:

Organic and Chemistry

Subject:

Chemistry

Creator:

Chris Galliford

Owner:

Scholarly Digital Publishing

Date Uploaded:

06/01/2018

Date Modified:

06/01/2018

Date Created:

2007-05-11

Resource Type:

Dissertation
Homogeneous Catalytic Ring-expansion of Aziridines: Methodology for the Facile and Atom-economical Synthesis of Heterocyclic Small Molecules

Description:

The [(salen)CrCl + LB] catalyst system was found to be a highly active catalyst system for the [aziridine + CO<sub>2</sub>] coupling reaction, and exhibited a marked preference for the formation of 5-substituted oxazolidinone product, especially in the absence of cocatalyst. The activity of this catalyst system is optimized by modifying...

Keyword:

Chemistry and Organic

Subject:

Chemistry

Creator:

Aaron W Miller

Owner:

Scholarly Digital Publishing

Date Uploaded:

06/05/2018

Date Modified:

06/05/2018

Date Created:

2007-05-11

Resource Type:

Dissertation
Plasmonic Sensors for Applications in Catalysis and Art Conservation

Description:

The work described here includes both fundamental and application based studies centered around the use of plasmonic sensors. Fundamental studies focus on probing the optical properties of nanosphere lithography (NSL) fabricated Ag nanoparticles, while surface-enhanced Raman spectroscopy (SERS) sensors are applied to identify and characterize artists' red dye and red...

Keyword:

Physical Chemistry and Chemistry

Subject:

Chemistry

Creator:

Alyson Victoria Whitney

Owner:

Scholarly Digital Publishing

Date Uploaded:

06/05/2018

Date Modified:

06/05/2018

Date Created:

2007-05-08

Resource Type:

Dissertation
UV Raman Studies of Hydrocarbons in Zeolites: (I) coke chemistry, (II) benzene in MFI, (III) quantitative Raman analysis

Description:

UV Raman spectroscopy is a powerful tool to investigate hydrocarbons-zeolite systems, including the coke formation mechanism during MTH reactions, the sorbet-framework interactions and the quantitative analysis of catalytic reactions. First, methanol, dimethyl ether and ethylene reactions were carried out on H-MFI with different Si/Al atomic ratios to study the coke...

Keyword:

MTH, Quantitative Raman Analysis, Benzene in MFI, UV Raman, and Coke

Subject:

Chemistry

Creator:

Chao Zhang

Owner:

Scholarly Digital Publishing

Date Uploaded:

06/05/2018

Date Modified:

06/05/2018

Date Created:

2007-05-10

Resource Type:

Dissertation
Functional Nanostructures through the Use of Chemical Affinity Templates and Their Application in Cellular and Biodiagnostic Assays

Description:

This dissertation describes the development and use of novel chemical affinity templates to direct the assembly and preserve the activity of biological molecules in surface- and solution-based biomolecular assays. The majority of work described herein focuses on advancing biological nanoarray technology to enable the study of fundamentally important biological processes...

Keyword:

nanoarrays, metal ions, probe, scanning, viruses, surface, biorecognition, and microscopy

Subject:

Chemistry

Creator:

Rafael Angel Vega

Owner:

Scholarly Digital Publishing

Date Uploaded:

06/05/2018

Date Modified:

06/05/2018

Date Created:

2007-05-11

Resource Type:

Dissertation
Peripherally Functionalized Porphyrazines as Tumor Contrast Agents

Description:

The porphyrazines (pzs), a class of porphyrin derivatives, have shown potential as therapeutic and imaging agents due to a combination of their near-IR absorbance/fluorescence and their enhanced chemical flexibility. Cell viability/proliferation assays and fluorescence microscopy were carried out in both tumor and normal cells to characterize the biological activity of...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Hong Zong

Owner:

Scholarly Digital Publishing

Date Uploaded:

06/25/2018

Date Modified:

06/25/2018

Date Created:

2007-05-11

Resource Type:

Dissertation
Part 1: Synthesis of Side-Chain Functionalized Polyamines and Study of their RNA-Binding Properties. Part 2: Synthesis and Evaluation of Heterocycle-Based Selective Inhibitors of Neuronal Nitric Oxide Synthase with Improved Bioavailability.

Description:

Part 1. The complex folded structures associated with RNA allow for specific protein-RNA interactions and also create binding sites for small molecules. Developing organic molecules that can bind RNA with high affinity and specificity is a challenge that must be overcome for RNA to be considered a viable drug target....

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Graham R Lawton

Owner:

Scholarly Digital Publishing

Date Uploaded:

06/26/2018

Date Modified:

06/26/2018

Date Created:

2007-05-03

Resource Type:

Dissertation
Energy and Charge Transfer in Chlorophyll- and Porphyrin-Based Multichromophore Arrays

Description:

This thesis consists of the synthesis and photophysical characterization of chlorophyll- and porphyrin- based multichromophore arrays designed for the purpose of studying energy and charge transfer therein. The first series of arrays consists of donor-acceptor dyads in which various arylene diimide electron acceptors are attached through a phenyl group to...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Richard Forrest Kelley

Owner:

Scholarly Digital Publishing

Date Uploaded:

06/26/2018

Date Modified:

06/26/2018

Date Created:

2007-05-11

Resource Type:

Dissertation
An Investigation of Electroactive, Conducting, Thiophene-Based Oligomers: Electronic Structure, Synthesis, Characterization, and Device Analysis

Description:

Theoretical studies on electronic structure governing charge transport properties are investigated to understand and improve the prediction of electron charge carrier organic semiconductors used in field-effect transistors. Perfluorinated oligothiophene semiconductors have shown experimental n-type behavior, but placement of fluorinated aryl groups changes charge polarities. Models were developed to investigate how...

Keyword:

Chemistry and Physical

Subject:

Chemistry

Creator:

Sharon E Koh

Owner:

Scholarly Digital Publishing

Date Uploaded:

06/27/2018

Date Modified:

06/27/2018

Date Created:

2007-05-14

Resource Type:

Dissertation
Optimization of Surface-Enhanced and Tip-Enhanced Raman Scattering Sensitivity through Molecular Plasmonics

Description:

The work presented in this dissertation is centered on experimental efforts to maximize the sensitivity of surface-enhanced Raman spectroscopy (SERS) and tip-enhanced Raman spectroscopy (TERS) toward their application in ultrasensitive nanoscale chemical analysis. The work focuses on fundamental studies of the plasmonic properties of silver nanostructures, and how those properties...

Keyword:

tip-enhanced raman, nanotechnology, nanoparticles, surface-enhanced raman, and plasmonics

Subject:

Chemistry

Creator:

Matthew A. Young

Owner:

Scholarly Digital Publishing

Date Uploaded:

07/30/2018

Date Modified:

07/30/2018

Date Created:

05-14-2007

Resource Type:

Dissertation
Studies of Single Nanoparticle Systems by Localized Surface Plasmon Resonance Spectroscopy, Atomic Force Microscopy, Transmission Electron Microscopy, and Combinations Thereof

Description:

The work presented here describes investigations into the optical properties of single silver nanoparticles. The contents of this thesis are divided into two parts: (1) single nanoparticle localized surface plasmon resonance (LSPR) spectroscopy and sensing and (2) approaches to combining LSPR spectroscopy with atomic force and transmission electron microscopies. Part...

Keyword:

Chemistry and Physical

Subject:

Chemistry

Creator:

Leif Jorstad Sherry

Owner:

Scholarly Digital Publishing

Date Uploaded:

07/30/2018

Date Modified:

07/30/2018

Date Created:

05-21-2007

Resource Type:

Dissertation
Design, Fabrication and Fundamental Studies of Plasmonic Materials

Description:

Nanoplasmonics is an emerging branch of photonics that studies the optical properties of noble metals. Nanostructured noble metal materials, which can strongly interact with light and support various plasmon modes, are exceptional candidates for nanophotonic devices. This work describes the latest advances in the fabrication of ordered silver nanoparticles or...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Erin McLellan

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/01/2018

Date Modified:

08/01/2018

Date Created:

06-21-2007

Resource Type:

Dissertation
Chain Transfer Processes in Single-Site Olefin Polymerization: Effects of Silanes and Amines as Chain Transfer Agents

Description:

Alkenylsilanes of varying chain lengths are investigated as simultaneous chain transfer agents + comonomers in organotitanium-mediated olefin polymerization processes. Ethylene + alkenylsilane polymerizations were carried out with activated Me2Si(Me4C5)(NtBu)TiMe2 and (-CH2CH2-3,3'){(5-indenyl )[1-Me2Si(tBuN)]}2Ti2Me4 precatalysts. Alkenylsilane incorporation levels follow the trend C8H15SiH3 < C6H11SiH3 ≈ C4H7SiH3 < C3H5SiH3. Long-chain branching levels versus...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Smruti Amin

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/01/2018

Date Modified:

08/01/2018

Date Created:

2007-08-29

Resource Type:

Dissertation
Chemically-Modified Peptide Nucleic Acids: A Versatile Approach to Complex Molecular Scaffolding and Control of Nucleic Acid Secondary Architecture

Description:

This dissertation covers the synthesis and study of peptide nucleic acids (PNAs), specifically, derivatives of PNA containing amine-bearing sidechains or cyclopentane portions. PNAs are non-natural nucleic acids that have far reaching potential in therapeutics and nucleic acid detection. Despite immense potential and widespread application, improving on the design and applications...

Keyword:

Chemistry and Organic

Subject:

Chemistry

Creator:

Ethan Andrew Englund

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/06/2018

Date Modified:

08/06/2018

Date Created:

2007-10-08

Resource Type:

Dissertation
Theoretical Study of Model Atom+Polyatom Reactions in the Gas Phase: Adiabatic and Nonadiabatic Dynamics

Description:

Direct dynamics quasiclassical trajectory (QCT) calculations are performed to study the dynamics of model atom + polyatom reactions. In the first part of this thesis, we examine adiabatic dynamics of H/O reaction with simple alkanes, CD4 and C2H6. Overall good agreement with state-of-the-art experiments shows that the molecular motion is...

Keyword:

Chemistry and Physical

Subject:

Chemistry

Creator:

Wenfang Hu

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/06/2018

Date Modified:

08/06/2018

Date Created:

2007-09-26

Resource Type:

Dissertation
Charge Transport, Trapping, and Interfacial Effects in High Electron Affinity Arylene Diimide Semiconductor Thin Films

Description:

Small molecule organic materials based on perylene- and naphthalene- diimide are synthesized and characterized for use as semiconductor thin films in organic field-effect transistors. The orbital energetics of the materials are investigated via electrochemical, spectroscopic, and computational techniques. The thin film solids are characterized by x-ray diffraction techniques and surface...

Keyword:

Semiconductor, Air-stable, n-Type, Perylene Diimide, and Organic Electronics

Subject:

Chemistry

Creator:

Brooks A Jones

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/07/2018

Date Modified:

08/07/2018

Date Created:

2007-09-21

Resource Type:

Dissertation
Theoretical Studies of Adsorption on Reactive Ionic Surfaces

Description:

Metal oxide surfaces are generally recognized as active substrates for many catalytic reactions. Density Functional Theory (DFT) has been found as a useful computational tool to investigate the geometry, energy, electronic structure of reactive oxide surfaces and their interaction with small molecules and fragments. In this thesis, primary efforts have...

Keyword:

DFT

Subject:

Chemistry

Creator:

Xiaoyan Ma

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/13/2018

Date Modified:

08/13/2018

Date Created:

2007-07-06

Resource Type:

Dissertation
Studies Directed Towards the Total Synthesis of Okilactomycin and Chrolactomycin

Description:

Okilactomycin and chrolactomycin are antitumor antibiotics isolated in 1987 and 2001, respectively. These tetracyclic natural products possess a unique 6-5 fused tetrahydropyrone-butyrolactone. The spirocenter is part of a highly functionalized cyclohexene ring, which together with the aforementioned 6-5 system compose the core of these molecules. A six carbon, 1,3-dialkyl-substituted carbon...

Keyword:

natural products and total synthesis

Subject:

Chemistry

Creator:

William Joseph Morris

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/13/2018

Date Modified:

08/13/2018

Date Created:

2007-06-26

Resource Type:

Dissertation
Nonlinear Optical Studies of Model Environmental Interfaces

Description:

Surfaces and interfaces, which are ubiquitous in the environment, control the mobility,speciation, and ultimate fate of groundwater species. The presented work provides insight into the interfacial behavior of three environmental pollutants: hexavalent chromium, oxytetracycline, and morantel. Model surfaces are employed for these studies, including (1-102) α-Al<sub>2</sub>O<sub>3</sub> and a carboxylic acid-terminated...

Keyword:

Chemistry and Physical

Subject:

Chemistry

Creator:

Michael Joseph Musorrafiti

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/13/2018

Date Modified:

08/13/2018

Date Created:

2007-08-22

Resource Type:

Dissertation
On-Wire Lithography

Description:

This dissertation describes the invention and development of a new nanolithographic method: On-Wire Lithography (OWL). OWL is a simple, reproducible, and high-throughput procedure for the synthesis and lithographic processing of metal nanowires (i.e. Au, Ag, Pt, Ni, and Cu) that allows researchers to control the morphology and feature size of...

Keyword:

Inorganic and Chemistry

Subject:

Chemistry

Creator:

Lidong Qin

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/13/2018

Date Modified:

08/13/2018

Date Created:

2007-10-01

Resource Type:

Dissertation
Synthesis and Studies of Non-Natural Oligomers that Interact with Biomolecules: PNA, Polyamines, and Peptoids

Description:

The overarching theme of this thesis is the development of non-natural oligomers for use in biological applications. Chapter I details the synthesis and studies of modified peptide nucleic acid (PNA) oligomers. PNA is a synthetic oligonucleotide mimic that binds to natural nucleic acids with extremely high affinity and specificity, making...

Keyword:

Chemistry and Organic

Subject:

Chemistry

Creator:

Jonathan K Pokorski

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/13/2018

Date Modified:

08/13/2018

Date Created:

2007-07-30

Resource Type:

Dissertation
Interaction of Indoor Air Pollutants with Titanium Dioxide Catalyst Coatings Studied by Chemical Ionization Mass Spectrometry

Description:

Preventing the build-up of indoor pollutants represents an emerging goal in environmental chemistry. Heterogeneous catalysis provides an attractive method of remediating indoor air pollution, but optimization through rational catalyst design requires a detailed understanding of the catalytic surface and surface-pollutant interactions. In this work, a chemical ionization mass spectrometry (CIMS)...

Keyword:

environmental remediation, Indoor air pollution, acetone, chemical ionization mass spectrometry, and TiO2

Subject:

Chemistry

Creator:

Catherine Margaret Schmidt

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/14/2018

Date Modified:

08/14/2018

Date Created:

2007-09-04

Resource Type:

Dissertation
Environmental Interfaces Studied by Second Harmonic Generation

Description:

Interfaces and surfaces are ubiquitous in the environment. Heterogeneous binding events and reactions control the transport and speciation of dissolved pollutants in groundwater. Many heterogeneous processes occur at mineral oxide/water interfaces, and can be controlled either by the mineral oxide, or organic molecules bound to the surface. The prevalent natural...

Keyword:

surfaces, morantel, manganese, SiO2, second harmonic generation, and carboxylic acid

Subject:

Chemistry

Creator:

Christopher Thomas Konek

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/16/2018

Date Modified:

08/16/2018

Date Created:

2007-08-09

Resource Type:

Dissertation
The Chemical and Physical Properties of DNA-Modified Gold Nanoparticles and Their Role in Small Molecule Detection

Description:

The first section of this thesis focuses on applications of DNA-modified gold nanoparticles (AuNPs) while the second part addresses the fundamental properties that arise from conjugating DNA to inorganic AuNPs. Two types of applications are discussed. The first application utilizes the colorimetric properties of AuNPs to screen duplex and triplex...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Abigail K. R. Lytton-Jean

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/27/2018

Date Modified:

08/27/2018

Date Created:

2007-11-07

Resource Type:

Dissertation
A Coordination Chemistry-Based Approach for the Synthesis of Stimulant-Responsive Supramolecular Cofacial Porphyrin Complexes

Description:

This dissertation focuses on the utilization of two coordination chemistry-based synthetic approaches, which provide the ability to rapidly and quantitatively assemble sophisticated supramolecular cofacial porphyrin complexes. Significantly, by adopting a coordination chemistry-based approach, the porphyrin-porphyrin interactions can be regulated in situ via the addition or removal of chemical effector molecules....

Keyword:

Allosteric, Coordination Chemistry, and Allosterism

Subject:

Chemistry

Creator:

Christopher Gordon Oliveri

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/27/2018

Date Modified:

08/27/2018

Date Created:

2007-11-14

Resource Type:

Dissertation
I. Lewis Base-Promoted Additions of Trialkoxysilylalkynes II. Multi-component Homoenolate Reactions Using Acylsilanes

Description:

Two new methods have been developed employing silicon-containing molecules in novel organic transformations. The first strategy utilizes Lewis base-activation of triethoxysilylalkynes to deliver mild acetylide nucleophile equivalents. The second approach involves the use of enolate additions to acylsilanes to generate β-silyloxy homoenolate intermediates. Lewis base-catalyzed activation of triethoxysilylalkynes promotes the...

Keyword:

Organic Chemistry

Subject:

Chemistry

Creator:

Robert B. Lettan ii

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/27/2018

Date Modified:

08/27/2018

Date Created:

2007-07-17

Resource Type:

Dissertation
Linear and Nonlinear Optical Spectroscopy on Two-Dimensional Arrays of Silver Nanoparticles

Description:

The work presented in this thesis describes investigations into linear and nonlinear optical properties of two-dimensional silver nanoparticle arrays. The linear optical measurements - extinction measurements were performed on two-dimensional square arrays of L-shaped silver nanoparticles fabricated by electron beam lithography in order to study the effect of dipole coupling...

Keyword:

Chemistry and Physical

Subject:

Chemistry

Creator:

Jiha Sung

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/27/2018

Date Modified:

08/27/2018

Date Created:

2007-09-27

Resource Type:

Dissertation
Biomolecule Assembly and Metal Nanostructures

Description:

This dissertation describes the use of alkanethiols and polymers for the development of lithographic affinity and resist array templates that can be utilized for directing the assembly of biological molecules, for building up multilayered polyelectrolyte thin films, and for fabricating metal solid-state nanostructures. The first two chapters of the work...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Raymond Jose de Guia Sanedrin

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/27/2018

Date Modified:

08/27/2018

Date Created:

2007-12-05

Resource Type:

Dissertation
Electronic and Structural Studies of DNA Hairpins and Quadruplexes

Description:

Theoretical analysis of DNA bridge-mediated electron transfer (ET) led to the proposal that photoinduced ET might occur via either superexchange or hopping mechanisms. Electron transfer has been proposed to occur via a superexchange mechanism at short distances and via a hopping mechanism at longer distances. However, a crossover in mechanism...

Keyword:

Chemistry and Organic

Subject:

Chemistry

Creator:

Hui he Zhu

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/28/2018

Date Modified:

08/28/2018

Date Created:

2007-11-29

Resource Type:

Dissertation
Preparation and Characterization of Solid-State and Plasmonic Materials

Description:

The contents of this dissertation are divided into two sections: (1) the preparation and characterization of quaternary rare-earth chalcogenides and oxychalcogenides and (2) the localized surface plasmon resonance (LSPR) spectroscopy of metallic nanoparticles fabricated by nanosphere lithography (NSL). Single crystals of CsTmCoS3, CsYbCoS3, CsHoCoSe3, CsYbCoSe3, and CsYbZnSe3 have been prepared...

Keyword:

Nanosphere Lithography, Optical Properties, Crystal Structure, Magnetic Properties, Rare-earths, and Localized Surface Plasmon Resonance

Subject:

Chemistry

Creator:

George Hanki Chan

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/28/2018

Date Modified:

08/28/2018

Date Created:

2007-12-05

Resource Type:

Dissertation
Near-field Optical Characterization of Mesoscale Structures

Description:

The work described in this dissertation focuses on the optical characterization of micron-sized structures with mesoscale (100-1000 nm) features to investigate of the optical analog to the quantum corral. Lithographically patterned arrays of metallic rings and ellipses were used to study how light can be manipulated and confined within these...

Keyword:

Physical Chemistry

Subject:

Chemistry

Creator:

Yelizaveta Babayan

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/28/2018

Date Modified:

08/28/2018

Date Created:

2007-12-10

Resource Type:

Dissertation
Scaling Laws for Charge Transfer in Donor/Bridge/Acceptor Molecules

Description:

This thesis attempts a combined theoretical/experimental investigation of two fundamental scaling laws in charge transfer reactions: how the rate of those reactions varies as a function of distance between an electron donor and an electron acceptor and how the rate varies as a function of the number of distinct pathways...

Keyword:

molecular electronics, charge transfer, multiple pathways, dephasing, bicyclooctane, and donor bridge acceptor

Subject:

Chemistry

Creator:

Randall Howard Goldsmith

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/29/2018

Date Modified:

08/29/2018

Date Created:

2007-12-07

Resource Type:

Dissertation
Singlet Exciton Fission: A Discussion of the Mechanism and What It Means for

Description:

This thesis investigates singlet exciton fission, a physical process that converts one singlet exciton to a pair of triplet excitons. Singlet fission was discovered nearly forty years ago, but the mechanism for this process is still not well understood. Recent work has suggested that singlet fission may be capable of...

Keyword:

Singlet Exciton Fission, Theory, and Solar Cell

Subject:

Chemistry

Creator:

Eric Greyson

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/29/2018

Date Modified:

08/29/2018

Date Created:

2007-12-11

Resource Type:

Dissertation
Multiscale Plasmonic Metamaterials

Description:

Metallic nanostructures are able to confine and manipulate electromagnetic fields because light can couple to free electron oscillations called surface plasmons (SPs). These plasmons exist on metal surfaces as localized (short-range) or as propagating (long-range) modes depending upon the size and geometry of the nanostructure. This dichotomy is primarily an...

Keyword:

subwavelength holes, nanoparticle, Metamaterials, nanoscience, plasmon, and nanopatterning

Subject:

Chemistry

Creator:

Joel Henzie

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/29/2018

Date Modified:

08/29/2018

Date Created:

2007-12-10

Resource Type:

Dissertation
Nanostructured Membrane Catalysis

Description:

This thesis summarizes our research efforts on the application of the nano-structured anodic aluminum oxide (AAO) membrane in heterogeneous catalysis. Procedures for growing the AAO membrane in the center of an aluminum disc have been developed by appropriately masking the disk's perimeter during the anodization and etching steps. The remaining...

Keyword:

Physical Chemistry

Subject:

Chemistry

Creator:

Hao Feng

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/29/2018

Date Modified:

08/29/2018

Date Created:

2007-12-10

Resource Type:

Dissertation
Metal-Organic and Aerosol-Assisted Chemical Vapor Deposition. Development and Application of Dithiocarbamate and Phosphinoborate Ligand-Based Precursors for Cuprous Sulfide, Molybdenum Disulfide/Titanium Oxide, and Metallic Silver Thin Films

Description:

Chemical vapor deposition (CVD) is a well-developed technique for growing thin films of a wide variety of materials, which relies on the development of new and better performing metal-organic precursors. To this end, three studies have been conducted into the compatibility of sulfur and phosphine containing ligands with low- and...

Keyword:

Inorganic Chemistry

Subject:

Chemistry

Creator:

Matthew McCain

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/29/2018

Date Modified:

08/29/2018

Date Created:

2007-12-13

Resource Type:

Dissertation
Enabling n-Channel Oligomer and Polymer Semiconductors Through Rational Design, Synthesis, Computational Modeling, and Temperature Dependent Field Effect Transistor Study

Description:

Conjugated organic molecules and polymers hold significant promise for use as active materials in electronic devices. Employing such "soft" materials can decrease cost of device fabrication, while enabling unique properties such as mechanical flexibility, large-area coverage, and highly tunable materials properties. A primary roadblock to the realization of this dream...

Keyword:

multiple trapping and release, organic semiconductor, n-channel FET, and computationally-aided

Subject:

Chemistry

Creator:

Joseph Adam Letizia

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/29/2018

Date Modified:

08/29/2018

Date Created:

2007-12-11

Resource Type:

Dissertation
Metal Nanoprisms: Synthesis, Optical Properties, Assembly

Description:

Metal nanoprisms are a novel class of anisotropic nanomaterials with unique optical properties dependent on their size, shape, and composition. Silver nanoprisms are of particular interest because their surface plasmon resonance bands are readily tunable in the visible and near-IR region. The objectives of this thesis research focus on photochemical...

Keyword:

Inorganic Chemistry

Subject:

Chemistry

Creator:

Can Xue

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/30/2018

Date Modified:

08/30/2018

Date Created:

2007-12-10

Resource Type:

Dissertation
Bimetallic Effects in the Homopolymerization of Styrene and Copolymerization of Ethylene and Styrenic Comonomers. Scope, Kinetics, and Mechanism/Catalytic In Situ Synthesis of High Energy Storage Density Metal Oxide-Polyolefin Nanocomposites Using Supported Metallocenes. Systematics of Nanoparticle, Shape, and Interfacial Characteristics on Leakage Current Density, Permittivity, and Breakdown Strength

Description:

Chapter 1 describes the homopolymerization of styrene and the copolymerization of ethylene and styrenic comonomers mediated by the single-site bimetallic "constrained geometry catalysts" (CGCs), (µ-CH2CH2-3,3'){(η5-indenyl)[1-Me2Si(tBuN)](TiMe2)}2 [EBICGC(TiMe2)2; Ti2], (µ-CH2CH2-3,3'){(η5-indenyl)[1-Me2Si(tBuN)](ZrMe2)}2 [EBICGC(ZrMe2)2; Zr2], (µ-CH2-3,3'){(η5-indenyl)[1-Me2Si(tBuN)](TiMe2)}2 [MBICGC(TiMe2)2; C1-Ti2], and (µ-CH2-3,3'){(η5-indenyl)[1-Me2Si(tBuN)](ZrMe2)}2 [MBICGC(ZrMe2)2; C1-Zr2], in combination with the borate activator/cocatalyst Ph3C+B(C6F5)4- (B1). Under identical styrene homopolymerization conditions,...

Keyword:

Inorganic Chemistry

Subject:

Chemistry

Creator:

Neng Guo

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/30/2018

Date Modified:

08/30/2018

Date Created:

2007-10-01

Resource Type:

Dissertation
New Discoveries in N-Heterocyclic Carbene-Catalyzed Homoenolate and Hydroacylation Reactions

Description:

N-Heterocyclic carbene catalysis has recently emerged as an important field in organic chemistry. Two new strategies have been developed to advance the use of N-heterocyclic carbenes (NHCs) as Lewis-base organic catalysts. The first approach utilizes NHCs to catalyze the generation of homoenolates and the conjugated Breslow intermediate is added to...

Keyword:

Organic Chemsitry

Subject:

Chemistry

Creator:

Audrey Chan

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/31/2018

Date Modified:

08/31/2018

Date Created:

2008-04-14

Resource Type:

Dissertation
Synthesis and Optimization of Cell-Permeable Contrast Agents for Magnetic Resonance Imaging

Description:

Magnetic resonance imaging (MRI) is a technique widely used in both clinical and experimental settings to produce high-resolution images of opaque living organisms without utilizing ionizing radiation. Currently, MR imaging is augmented by contrast agents; however, these small molecule Gd(III) chelates are confined to extracellular and vascular regions of the...

Keyword:

disulfide, contrast agents, gadolinium, magnetic resonance imaging, and cell-permeable

Subject:

Chemistry

Creator:

Paul J. Endres

Owner:

Scholarly Digital Publishing

Date Uploaded:

08/31/2018

Date Modified:

08/31/2018

Date Created:

2008-05-05

Resource Type:

Dissertation
Design, Deposition, Characterization and Modification of Transparent, Conducting Anode Materials for Organic Light-Emitting Diodes

Description:

The electronic properties of various transparent conducting oxide (TCO) surfaces are probed electrochemically via self-assembled monolayers (SAMs). A novel graftable probe molecule having a tethered trichlorosilyl group and a redox-active ferrocenyl functionality (Fc(CH2)4SiCl3) is synthesized for this purpose. On as-received ITO, saturation coverage by a close-packed monolayer having of 6.6...

Keyword:

Orgnic Light-Emitting Diodes, Carbon Nanotube Film, and Transparent Conducting Films

Subject:

Chemistry

Creator:

Jianfeng Li

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/01/2018

Date Modified:

09/01/2018

Date Created:

2008-01-17

Resource Type:

Dissertation
Modifications in Organic Electronic Devices: Uncovering the Mechanisms of Performance Enhancement Using Interfacial Self Assembled Monolayers

Description:

Organic light emitting diodes (OLEDs) are fabricated and characterized on anodes modified by a variety of surface treatments. OLED performance response is correlated to the treatment conditions with current-voltage (I-V) measurements and impedance spectroscopy. Small-scale OLED arrays are fabricated using a novel shadow mask approach and are characterized with electrical...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Matthew Thomas Russell

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/01/2018

Date Modified:

09/01/2018

Date Created:

2008-01-29

Resource Type:

Dissertation
Polyvalent Nanoparticle-DNA Conjugates: Synthesis, Properties, and Biodiagnostic Applications

Description:

The work of this dissertation was aimed at synthesizing new types of nanoparticle-DNA conjugates, investigating their chemical and physical properties, and exploring their biodiagnostic applications. Chapters Two and Three describe the synthesis of new types of nanoparticle-DNA conjugates: (1) silver nanoparticle-DNA conjugates (DNA-Ag NPs) and (2) 2-nm gold nanoparticle-DNA conjugates...

Keyword:

Analytical Chemistry

Subject:

Chemistry

Creator:

Jae-Seung Lee

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/06/2018

Date Modified:

09/06/2018

Date Created:

2008-02-28

Resource Type:

Dissertation
Structures and functions of new copper receptor proteins controlling gene regulation and metal trafficking

Description:

Copper serves as a cofactor for many proteins and enzymes involved in important biological processes, but at the same time, excessive copper is toxic to cell. Thus, the intracellular copper concentration must be tightly controlled such that copper is provided to essential enzymes but does not accumulate to toxic levels....

Keyword:

Inorganic Chemistry

Subject:

Chemistry

Creator:

Yi Xue

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/06/2018

Date Modified:

09/06/2018

Date Created:

2007-12-21

Resource Type:

Dissertation
Cation-Anion Interactions in Solid State Oxide Fluorides

Description:

The early transition metal oxide fluoride molecular anions with the general formula [MOxF6-x]n- with x = 1 for M = V5+, Nb5+, Ta5+ (n = 2) and x = 2 for M = Mo6+, W6+ (n = 2) feature distorted octahedral coordinations, that arise from electronic dπ pπ metal oxide...

Keyword:

Inorganic Chemistry

Subject:

Chemistry

Creator:

Michael Robert Marvel

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/08/2018

Date Modified:

09/08/2018

Date Created:

2008-05-02

Resource Type:

Dissertation
Resonant Localized Surface Plasmon Resonance Spectroscopy: Fundamentals and Applications

Description:

The work presented here describes investigations into the interaction of resonant molecules with metallic nanoparticles by localized surface plasmon resonance (LSPR) spectroscopy. The contents of this thesis include the study of the coupling mechanism between molecular resonance and plasmon resonance from experimental and theoretical perspectives and applications of this mechanism...

Keyword:

Physical Chemistry

Subject:

Chemistry

Creator:

Jing Zhao

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/08/2018

Date Modified:

09/08/2018

Date Created:

2008-05-08

Resource Type:

Dissertation
Biophysical and Structural Characterization of Particulate Methane Monooxygenase and Methanobactin from Methylosinus trichosporium OB3b

Description:

Particulate methane monooxygenase (pMMO) is a membrane-bound metalloenzyme that oxidizes methane to methanol in methanotrophic bacteria. The nature of the pMMO active site and the overall metal content are controversial, with spectroscopic and crystallographic data suggesting the presence of a mononuclear copper center, a dinuclear copper center, a trinuclear center,...

Keyword:

membrane protein, methanobactin, methanotroph, and particulate methane monooxygenase

Subject:

Chemistry

Creator:

Amanda S. Hakemian

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/10/2018

Date Modified:

09/10/2018

Date Created:

2008-05-09

Resource Type:

Dissertation
Inorganic Nanowells and Nanotubes as Templates for Chemical Nanofabrication

Description:

Nanoscale materials are demonstrating new properties and promising applications with each passing day. The fabrication of ever more complex and precise nanomaterials represents a continuing drive in the fields of physics, chemistry, and biology. Template-based approaches provide an attractive method of producing new inaccessible materials by modifying and confining older...

Keyword:

Nanoparticles, Nanowells, Tantalum Oxide, and Nanotechnology

Subject:

Chemistry

Creator:

Jeremy Barton

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/10/2018

Date Modified:

09/10/2018

Date Created:

2008-05-12

Resource Type:

Dissertation
Coordination Complexes for the Development of Zn(II)-Activated MR Imaging Probes

Description:

My thesis focuses on the design and synthesis of lanthanide coordination complexes as Zn(II)-responsive magnetic resonance imaging (MRI) contrast agents. These agents produce an increase in MR intensity upon binding of Zn(II) through water modulation to Gd(III) chelates. To this end, several Zn(II)-responsive contrast agents have been synthesized and studied...

Keyword:

Inorganic Chemistry

Subject:

Chemistry

Creator:

Jody L Major

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/11/2018

Date Modified:

09/11/2018

Date Created:

2008-05-09

Resource Type:

Dissertation
Peptoids as Monodisperse, Multivalent Scaffolds for End-Labeled Free-Solution Electrophoresis (ELFSE) and Magnetic Resonance Imaging (MRI)

Description:

The need for readily synthesized scaffold architectures to build monodisperse, high molar mass mobility modifiers or "drag-tags" in end-labeled free solution electrophoresis (ELFSE) led to the development of a novel class of multivalent molecular tools. Poly-N-substituted glycines (peptoids) were created with evenly spaced amino groups as branching points along the...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Russell Dean Haynes

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/12/2018

Date Modified:

09/12/2018

Date Created:

2008-05-13

Resource Type:

Dissertation
Insights on the Intracellular Mechanism of Action of the Anticancer and Antiangiogenic Copper Chelator Drug: Ammonium Tetrathiomolybdate (TM)

Description:

The biological antagonism between copper and molybdenum, first observed when cattle developed copper deficiencies after ingesting high levels of plant-born molybdenum, is currently being used in humans to treat two conditions: Wilson's Disease as well as several forms of metastatic cancer. There is surprisingly little known about the interaction of...

Keyword:

structural chemistry, bioinorganic chemistry, inorganic biochemistry, and biophysics

Subject:

Chemistry

Creator:

Hamsell Miguel Alvarez

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/12/2018

Date Modified:

09/12/2018

Date Created:

2008-05-27

Resource Type:

Dissertation
Charge Dynamics in New Architectures for Dye-Sensitized Solar Cells

Description:

The promise of a clean, renewable, and abundant energy supply make the efficient conversion of solar energy to electricity a compelling scientific and societal goal. In the following chapters, I will describe my efforts to advance one class of photovoltaic technology, dye-sensitized solar cells, by demonstration and characterization of unexplored...

Keyword:

Photovoltaic, Solar, Dynamics, Energy, Architectures, and Dye-Sensitized

Subject:

Chemistry

Creator:

Alex Martinson

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/17/2018

Date Modified:

09/17/2018

Date Created:

2008-06-11

Resource Type:

Dissertation
The Modulation of Magnetic Properties In Magnetic Resonance Imaging Contrast Agents using Enzymes

Description:

Magnetic resonance imaging (MRI) is an advanced imaging modality that is experiencing increasing popularity in clinical and experimental settings. MRI enjoys the benefit of high-resolution, the use of non-ionizing radiation, and the ability to distinguish between soft tissues. MR imaging is enhanced with the use of Gd3+ chelated contrast agents;...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Paul J Lee

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/17/2018

Date Modified:

09/17/2018

Date Created:

2008-10-30
Synthesis, Properties, and Applications of Colloidal Gold Nanoprisms

Description:

Au nanoprisms are a new type of inorganic nanoparticle that is particularly interesting because these particles can be made in high yield, are composed of a metal with well known surface chemistry, exhibit strong, architecture and environment-sensitive optical features, and have well-defined crystallographic facets. All of these features make Au...

Keyword:

nanotechnology, quadrupole, synthesis, anisotropic, nanoprism, and gold

Subject:

Chemistry

Creator:

Jill Erin Millstone

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/18/2018

Date Modified:

09/18/2018

Date Created:

2008-09-29

Resource Type:

Dissertation
Metal-organic frameworks as hydrogen storage materials: effects of framework reduction and cation doping

Description:

The safe and efficient storage of hydrogen is possibly the chief obstacle to its use as a fuel on a large scale. Metal-organic frameworks (MOFs) are well poised to provide unique solutions to hydrogen storage, and gas storage in general, a result of their crystalline, porous networks that present the...

Keyword:

doping, metal-organic frameworks, adsorption, heat of adsorption, Zn paddlewheel, and hydrogen storage

Subject:

Chemistry

Creator:

Karen Lynn Mulfort

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/18/2018

Date Modified:

09/18/2018

Date Created:

2008-09-30

Resource Type:

Dissertation
Catalyst Nuclearity Effects in Olefin Polymerization

Description:

The new binuclear organo-zirconium and -titanium metal complexes {2,7-di-[(2,6diisopropylphenyl)imino]-1,8-naphthalenediolato group 4 metal complexes {1,8-(O)2C10H4-2,7[CH=N(2,6-iPr2C6H3)]2}Zr2Cl6(THF)2 (FI2-Zr2) and {1,8-(O)2C10H4-2,7-[CH=N(2,6- i 2 t Pr2C6H3)]2}Ti2Cl6(THF)2 (FI -Ti2) are compared to the mononuclear analogues {3- Bu-2(O)C6H3CH=N(2,6-iPr2C6H3)}ZrCl3(THF) (FI-Zr1) and {3-tBu-2-(O)C6H3CH=N(2,6- i Pr2C6H3)}TiCl3(THF) (FI-Ti1), respectively, in ethylene polymerization and ethylene + olefin copolymerization processes. The comonomers studied...

Keyword:

bimetallic, methylenecycloalkane, olefin, polymerization, and phenoxyiminato

Subject:

Chemistry

Creator:

Michael R Salata

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/19/2018

Date Modified:

09/19/2018

Date Created:

2008-06-12

Resource Type:

Dissertation
Synthesis and Characterization of Silver Vanadium Oxide Fluorides

Description:

The utilization of hydrofluoric acid for the preparation of silver vanadium oxide fluorides has been advanced for the synthesis of Ag<sub>4</sub>V<sub>2</sub>O<sub>6</sub>F<sub>2</sub> and Ag<sub>3</sub>VO<sub>2</sub>F<sub>4</sub>. Silver-rich metal oxide fluorides are important battery cathode materials due to the high reduction potential of silver vs. Li, which is made even higher by the incorporation...

Keyword:

Chemistry

Subject:

Chemistry

Creator:

Thomas Allen Albrecht

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/20/2018

Date Modified:

09/20/2018

Date Created:

2008-12-03

Resource Type:

Dissertation
Single-Molecule Surface-Enhanced Raman Spectroscopy: A Frequency Domain Existence Proof and Examination of the Role of the Electromagnetic Enhancement Mechanism

Description:

This work is a research effort aimed at understanding the mechanisms of single-molecule surface-enhanced Raman spectroscopy (SMSERS). In the decade since its discovery in 1997, the role of resonance Raman (RR) enhancement, the origin of blinking, and the properties of the hot spot formed at the junction of two nanoparticles...

Keyword:

Physical Chemistry

Subject:

Chemistry

Creator:

Jon Albert Dieringer

Owner:

Scholarly Digital Publishing

Date Uploaded:

09/20/2018

Date Modified:

09/20/2018

Date Created:

2008-12-05

Resource Type:

Dissertation
Solution-Processable Molecular and Polymeric Semiconductors for Ambient-Stable Organic Field-Effect Transistors

Description:

π-Conjugated oligomeric and polymeric semiconductors have been the focus of intense research over the past few decades as alternatives to inorganic semiconductors for low-cost electronic applications such as organic field-effect transistors (OFETs). These materials enable vapor- or solution-phase fabrication of large-area, light-weight electronic devices, and are compatible with plastic substrates...

Keyword:

Organic Chemistry

Subject:

Chemistry

Creator:

Hakan Usta

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/01/2018

Date Modified:

10/01/2018

Date Created:

2008-12-05

Resource Type:

Dissertation
Hybrid Organic Materials Comprising Polymers and Small Molecules for Biodiagnostic and Electronic Applications

Description:

This thesis focuses on the design of hybrid organic materials comprising polymers and small molecules for biodiagnostic and electronic applications. Specifically, the electrochemical and fluorescent signaling properties of terthiophene-functionalized polymers are combined with the enhanced recognition properties of DNA hybrid materials, culminating in the development of a "loaded" probe for...

Keyword:

Detection, Polymer Nanoparticles, DNA, Conducting Polymers, Hybrid Materials, and Thiophene

Subject:

Chemistry

Creator:

Brian Richard Stepp

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/01/2018

Date Modified:

10/01/2018

Date Created:

2008-12-05

Resource Type:

Dissertation
Molecular Junctions: Control and Dynamics at the Single Molecule Limit

Description:

The overarching goal of this work is to understand nanometer scale junctions and electron transport through molecules in these junctions. Calculations detailing quantum interference in the electron transport through molecules, and the control of these features, show great potential for use as discrete electronic elements. Concurrent work on the fabrication...

Keyword:

Physical Chemistry

Subject:

Chemistry

Creator:

David Quigley Andrews

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/01/2018

Date Modified:

10/01/2018

Date Created:

2008-06-26

Resource Type:

Dissertation
Polyvalent Oligonucleotide Gold Nanoparticle Conjugates: Versatile Nanostructures for Biodetection and Chemically Programmable Assembly

Description:

Polyvalent oligonucleotide functionalized gold nanoparticle conjugates (DNA-AuNPs) possess unusual properties, which derive from their particle and oligonucleotide subunits as well as their three-dimensional architectures. This dissertation explores the role each chemical component plays in the conjugate's architecture and assembly and recognition capabilities. It also describes their application as probes in...

Keyword:

Inorganic Chemistry

Subject:

Chemistry

Creator:

Haley Diana Hill

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/02/2018

Date Modified:

10/02/2018

Date Created:

2008-12-08

Resource Type:

Dissertation
Chemistry on Supramolecular Nanostructures: Peptide Amphiphiles with Non-Covalent or Covalent-Linking Funcationality

Description:

In this work several self-assembling PA systems containing covalent-linking functionalities have been investigated. These covalently linkable PAs were designed to probe the supramolecular structure by covalent capture of the nanofibers and also improve the mechanical stiffness of the gel-material. The diacetylene motif was the main functional group investigated because of...

Keyword:

Organic Chemistry

Subject:

Chemistry

Creator:

Lorraine Hsu

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/02/2018

Date Modified:

10/02/2018

Date Created:

2008-12-08

Resource Type:

Dissertation
Peptide-Based Magnetic Resonance Imaging Probes for Detection of Enzyme Activity

Description:

Magnetic Resonance Imaging is a non-invasive modality that allows for deep-tissue imaging. Contrast agents decrease image acquisition time and increase the intrinsic contrast between different types of tissue. A new family of enzyme-activated contrast agents is emerging that has the ability to report on enzymatic processes in vivo. Towards this...

Keyword:

Inorganic Chemistry

Subject:

Chemistry

Creator:

Bradley Douglas Ulrich

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/02/2018

Date Modified:

10/02/2018

Date Created:

2008-12-03

Resource Type:

Dissertation
Kinetic, Thermodynamic, and Mechanistic Studies of DeNOx Catalysis Over BaNa-Y: The Roles of Nitrates and Nitrites

Description:

<span style="font-family: Calibri;">BaNa-Y is a catalyst for reduction of nitrogen oxides (NO and NO<sub>2</sub>) with added reductants at temperatures of ~200 °C. Studies were performed over BaNa-Y and related catalysts to unravel the roles that nitrates and nitrites play in determining the processes and pathways involved in NOx reduction. <o:p></o:p></span></p>...

Keyword:

BaNa-Y, Catalysis, DeNOx, NOx Reduction, Nitrates, and Kinetics

Subject:

Chemistry

Creator:

Aditya Savara

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/02/2018

Date Modified:

10/02/2018

Date Created:

2008-12-08

Resource Type:

Dissertation
Nanofabrication of Transition Metal Chalcogenides and Plasmonic Structures

Description:

The work described in this dissertation focuses on the development of a general approach to create nanoscale transition metal chalcogenide materials and new methods for controlling architecture of gold pyramidal structures. In the former, we used chemical nanofabrication, a combination of top-down patterning and bottom-up solid-state synthesis, to achieve control...

Keyword:

nanofabrication, chalcogenide, transition, and metal

Subject:

Chemistry

Creator:

Christopher Leo Stender

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/02/2018

Date Modified:

10/02/2018

Date Created:

2008-12-05

Resource Type:

Dissertation
Probing the Relationship between Structure and Function of Self-Assembling Conjugated Molecules

Description:

This thesis discusses the synthesis, self-assembly, and conductivity properties of novel oligothiophene derivatives with an emphasis on how molecular structure effects the assembly. In order to facilitate self-assembly in conjugated molecules, specific non-covenant forces were included into the molecular design of several derivatives. First, an amphiphilic oligothiophene derivative consisting of...

Keyword:

conductivity, oligothiophene, Self-Assembly, organogel, and hydrogel

Subject:

Chemistry

Creator:

David Alfred Stone

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/02/2018

Date Modified:

10/02/2018

Date Created:

2008-12-05

Resource Type:

Dissertation
Design and synthesis of small molecules, polyamines, and N-acylated polyamines that affect biological systems

Description:

The focus of this thesis is the design of non-natural molecules for use in biological applications. Chapter one details a strategy to use small molecules to reactivate mutated p53, an oncoprotein that is prevalent in several types of cancer, back to its wild-type function. Wild-type p53 has the ability to...

Keyword:

Organic Chemistry

Subject:

Chemistry

Creator:

Jaclyn Iera

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/03/2018

Date Modified:

10/03/2018

Date Created:

2008-06-19

Resource Type:

Dissertation
Structure and Function of Coordination Sites in Metal Trafficking Proteins

Description:

Many metal ions are of critical importance in many cellular functions. The very properties of these metal ions that make them useful also make them toxic to the cell. In the course of evolution, many metal ion homeostasis systems have developed to provide balance between the necessity and toxicity of...

Keyword:

Inorganic Chemistry

Subject:

Chemistry

Creator:

Lydia Finney

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/03/2018

Date Modified:

10/03/2018

Date Created:

2008-10-08

Resource Type:

Dissertation
DNA-Functionalized Interfaces Studied by Second Harmonic Generation

Description:

The nonlinear optical technique, second harmonic generation (SHG), is applied here for the first time to probe single and double strand DNA (ssDNA and dsDNA) chemically attached to fused quartz/water interfaces. DNA interfaces are often a critical functional component of biodetection, thus, the development of molecular biosensors requires a thorough...

Keyword:

biosensors, interfaces, chirality, nonlinear optics, DNA, and second harmonic generation

Subject:

Chemistry

Creator:

Faith Christianna Boman

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/08/2018

Date Modified:

10/08/2018

Date Created:

2008-12-09

Resource Type:

Dissertation
Computational Investigations into Plasmonic Excitations, Catalytic Reactions and Surface Doping

Description:

The tools of computational chemistry allow researchers to gain insight into chemical systems that would be difficult or impossible to gain experimentally. This dissertation discusses the application of several of these computational tools to chemical systems of interest. First, we present several studies of plasmon resonance in Ag nanoclusters using...

Keyword:

Nanoclusters, Subsurface hydrogen, Plasmons, Black phosphorus, and Surface doping

Subject:

Chemistry

Creator:

Adam Patrick Ashwell

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/21/2018

Date Modified:

04/25/2019

Date Created:

2017-01-01

Resource Type:

Dissertation
Fundamentals and Applications of Surface-Enhanced Coherent Raman Scattering

Description:

Plasmonic chemistry is an emerging field of research that contains great promise for new chemical reactivity, but thus far has been improperly observed. The goals of using plasmonic chemistry typically revolve around the use of nonequilibrium charge carriers that migrate to the surface of a plasmonic substrate to perform redox...

Keyword:

Physical Chemistry

Subject:

Chemistry

Creator:

Michael O. McAnally

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/21/2018

Date Modified:

10/21/2018

Date Created:

2017-01-01

Resource Type:

Dissertation
Synthetic Elucidation of Design Principles for Molecular Qubits

Description:

Quantum information processing (QIP) is an emerging computational paradigm with the potential to enable a vast increase in computational power, fundamentally transforming fields from structural biology to finance. QIP employs qubits, or quantum bits, as its fundamental units of information, which can exist in not just the classical states of...

Keyword:

Spin physics, Spin diffusion barrier, Electron paramagnetic resonance, Qubits, T2, and Quantum computation

Subject:

Chemistry

Creator:

Michael James Graham

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/22/2018

Date Modified:

10/22/2018

Date Created:

2017-01-01

Resource Type:

Dissertation
Understanding Morphology and Photovoltaic Response in Organic Solar Cells Through Aggregation and Crystallinity

Description:

Bulk heterojunction (BHJ) organic photovoltaic (OPV) devices have been extensively studied to achieve power conversion efficiencies well above 10%. New research into alternative materials that allow for cheaper and more industrially viable fabrication of flexible solar cells has been at the forefront of the energy field for the past few...

Keyword:

crystallinity, molecular weight, aggregation, organic solar cells, and nonfullerenes

Subject:

Chemistry

Creator:

Nicholas Dalton Eastham

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/26/2018

Date Modified:

01/29/2019

Date Created:

2017-01-01

Resource Type:

Dissertation
Emerging Three-dimensional and Two-dimensional Hybrid Halide Perovskites: From Synthesis to Thin Film Properties and Solar Cell Performance

Description:

Three-dimensional (3D) and two-dimensional (2D) hybrid halide perovskites have emerged as front-runners in solar energy conversion applications with the potential to provide low-cost renewable energy. Being at the interface of chemistry, physics, materials science, and electrical engineering, the field of perovskite solar cells has become a top area of interest...

Keyword:

solar cells and perovskite

Subject:

Chemistry

Creator:

Chan Myae Myae

Owner:

Scholarly Digital Publishing

Date Uploaded:

10/28/2018

Date Modified:

01/29/2019

Date Created:

2017-01-01

Resource Type:

Dissertation
Photoinduced Charge Carrier Dynamics in Colloidal Quantum Dots with Application in Photocatalysis

Description:

This dissertation describes the fundamental studies of photoinduced charge-carrier transfer from colloidal metal chalcogenide quantum dots (QDs) to surface-adsorbed molecular redox partners. In addition, we also present the use of visible-light absorbing QDs in photocatalytic applications. CdS QDs are used as photocatalysts in a C-C coupling reaction, in which no...

Keyword:

Carrier Dynamics, Electron Transfer, Quantum Dots, and Photocatalysis

Subject:

Chemistry

Creator:

Kedy Edme

Owner:

Scholarly Digital Publishing

Date Uploaded:

01/09/2019

Date Modified:

01/09/2019

Date Created:

2017-01-01

Resource Type:

Dissertation
Effects of Intermolecular Coupling on Excimer Formation and Singlet Fission

Description:

The development of organic photovoltaic devices benefits from understanding the fundamental processes underlying charge generation in thin films of organic semiconductors. This dissertation exploits model systems of π-stacked chromophores such as perylene-3,4:9,10-bis(dicarboximide) (PDI) and 3,6-bis(aryl)diketopyrrolopyrrole (DPP) to study these processes using ultrafast electronic and vibrational spectroscopy. In particular, the characterization...

Keyword:

singlet fission, transient absorption spectroscopy, vibrational spectroscopy, excimers, and diketopyrrolopyrrole

Subject:

Chemistry

Creator:

Catherine McKay Mauck

Owner:

Scholarly Digital Publishing

Date Uploaded:

01/09/2019

Date Modified:

01/09/2019

Date Created:

2017-01-01

Resource Type:

Dissertation
Connecting Spin Dynamics and Electron Transfer Reactions in Organic Molecules with Multiple Unpaired Electrons

Description:

The work presented in this dissertation examines the interplay between electron transfer reactions and electron spin in photoactive organic molecules. Organic compounds that undergo electron transfer reactions after absorbing light are important in natural photosynthesis, photobiology, and synthetic photovoltaics. These electron transfer reactions depend on the spin states of the...

Keyword:

radical pair, spectroscopy, spin chemistry, EPR, photochemistry, and electron transfer

Subject:

Chemistry

Creator:

Noah Elliott Horwitz

Owner:

Scholarly Digital Publishing

Date Uploaded:

01/10/2019

Date Modified:

01/10/2019

Date Created:

2017-01-01

Resource Type:

Dissertation
Development of Chemical Probes for Selective Investigation of Biological Pathways

Description:

Chemical probes are versatile and unique tools for biomedical research. A chemical probe is simply a selective small-molecule modulator of protein function that allows the user to ask mechanistic and phenotypic questions about its molecular target in biochemical, cell-based or animal studies. Experiments involving selective inhibitors can help delineate key...

Keyword:

small molecules, natural product, chemical biology, isoforms, and kinases

Subject:

Chemistry

Creator:

Kristine Deibler

Owner:

Scholarly Digital Publishing

Date Uploaded:

01/10/2019

Date Modified:

01/29/2019

Date Created:

2017-01-01

Resource Type:

Dissertation

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