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Browsing Chemistry by Title
Now showing items 310-329 of 463
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On the Excited States Formed During Interfacial Charge Transfer and Recombination in Organic Bulk Heterojunction Photovoltaic Devices
The optimization and implementation of organic photovoltaic (OPV) devices as low-cost and highly modular power sources are complicated by the intricacies of materials design and processing. Small variations in molecular ... -
Open microfluidic technologies for fundamental and applied studies of human health and the environment
This dissertation discusses the applications for open microfluidics in emerging technologies for studying human health and the environment. Open microfluidics is a sub-field of microfluidics that is quickly gaining traction ... -
Optical Characterization of Bio-Inspired Functional Materials, Metal Nanoparticles, and Their Composites
The ability to characterize optically-active materials by their transmutable optical signatures can both yield noncontact information on the nanoscale behavior of the material and be used to predict its applicable ... -
Optical low coherence reflectometery for morphological characterization of static and dynamic systems
(2000)In this dissertation I describe and evaluate Optical Low Coherence Reflectometery (OLCR) for morphological characterization of static and dynamic scattering systems.OLCR is a white-light interferometric technique, developed ... -
Organoselenium-Catalyzed Oxidative Transformations of Alkenes
The field of homogeneous catalysis is dominated by transition metals. There exists a vast array of methods available for the conversion of a huge variety of starting materials into an equally diverse collection of useful ... -
Oxidative Difunctionalizations of Alkenes
(2013-02-25)A plethora of natural products and valuable pharmaceuticals contain nitrogen heterocycles. Many of those scaffolds can be achieved by difunctionalizations of tethered aminoalkenes. The main focus of this dissertation is ... -
Palladium(II) Catalyzed Intramolecular Hydroamination of 1,3-dienes
(2013-02-25)A highly regioselective palladium catalyzed intramolecular hydroamination of substituted 1,3-dienes was achieved to create diverse nitrogen containing heterocycles. Hydroamination of 1,3-dienes goes in high yields, is ... -
Palladium-Catalyzed Cross-Coupling of N-Sulfonylaziridines with Boronic Acids and Synthetic Approaches to Organic Polymer-Supported One-Dimensional Metal Wires
The development of new reaction methodologies has been the gateway through which chemists have come to understand the world. In pursuit of making something better, faster, or completely novel, the synthetic community has ... -
Palladium-Catalyzed Cross-Couplings of 2-Alkylaziridines and Alkenylboronic Acids
A new method to synthesize substituted homoallylic amines is reported. Homoallylic amines are important structural moieties in natural products and pharmaceutical agents. The reaction couples N-nosyl-2-alkylaziridines with ... -
Partial Modulation Injection for Gas Chromatography
Partial modulation is developed and refined for one-dimensional gas chromatography (1D-GC), comprehensive two-dimensional gas chromatography (GCÃ GC), and comprehensive three-dimensional gas chromatography (GC3). Since ... -
Permanganate oxidations of aromatic hydrocarbons in aqueous and organic solution
(1996)The oxidations of a select group of arylalkanes by permanganate have been studied in aqueous solution and in toluene. In water at pH 7, the reactions of toluene, ethylbenzene, and cumene with KMnO$\sb4$ were studied. In ... -
Pharmacological Modulation and Functional Characterization of the Protein Kinase-Endoribonuclease IRE1α
Faithful folding of proteins in the endoplasmic reticulum (ER) is essential for cell survival and proper cellular function. Understandably, unfolded or misfolded proteins contribute to a myriad of human diseases. Numerous ... -
Phase separation in yeast vacuole membranes
Membranes of vacuoles, the lysosomal organelle in yeast, phase separate into two coexisting liquid phases. This phenomenon provides a physical mechanism for lateral organization of biological membranes. Budding yeast is ... -
Photo and Electrochemical Investigations of Solution Processable Molecules and Materials for the Hydrogen Evolution Reaction
Sustainable hydrogen production photoelectrochemically or photocatalytically is a desirable process that has the potential to allow hydrogen to be utilized as a carbon free fuel. In order for this method to become commercially ... -
Photochemical dynamics of laser-irradiated semiconductor nanostructures
Unique and novel applications of nanoscale materials are continuously being found. Applications span across many fields, including medicine, physics, chemistry, and engineering. Properties of nanoparticles are commonly ... -
Photodoping of Colloidal Nanocrystals
(2014-04-30)This dissertation addresses various aspects of photodoping colloidal nanocrystals. Photodoped ZnO nanocrystals were found to be versatile tuneable reducers using both quantum confinement and band-gap engineering with Mg2+ ... -
Photophysical and Redox Properties of Degenerately Doped Nanocrystals
For the past few decades, semiconductor nanocrystals (NCs) have been the subject of intense interdisciplinary research in both fundamental science and device engineering. Their size-tunable electronic and optical properties, ... -
Photophysical Properties of Quantum-Cutting Ytterbium(III)-Doped Perovskite Nanocrystals
Ytterbium(III)-doped all-inorganic lead-halide perovskites (Yb3+:CsPb(Cl1-xBrx)3) have recently been discovered to display highly efficient quantum cutting, in which the energy from each ultraviolet photon absorbed by the ... -
Pin the Protein on the Membrane: Using Numerical Simulations to Explore Membrane-Protein Systems
The structure of the membrane gives rise to important biological phenomena. In this dissertation we focus on the shape of the membrane and its interactions through two different coupling schemes to membrane bound proteins. ...