School of Chemistry and Biochemistry Theses and Dissertations
Original work in partial fulfillment of a graduate degree in the School of Chemistry and Biochemistry
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Recent Submissions
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Strained carbocycles as gateways to polycyclic molecular scaffolds and natural products targets
(Georgia Institute of Technology, 2016-08-01)Cyclopropanes and cyclobutanes, when activated with donor and acceptor groups, provide facile access to a plethora of interesting chemical scaffolds. Importantly, D-A cyclopropanes and cyclobutanes undergo efficient ... -
Polyaniline Sorption of Ruthenium
(Georgia Institute of Technology, 2016-07-26)The goal of this project was to determine if polyaniline would be an adequate matrix to sequester ruthenium from aqueous solutions. Ruthenium is a component of radioactive hazardous waste, and therefore developing a sorption ... -
ADDITIVES FOR ACTIVE LAYER DESIGN & TRAP PASSIVATION IN ORGANIC PHOTOVOLTAICS
(Georgia Institute of Technology, 2016-07-22)This dissertation explores the employment of solid additives in organic photovoltaic devices with the goal of customizing the electronic properties of the semiconducting materials, as well as the morphological effects of ... -
Molecular Simulations of the Bulk-Heterojunction Morphology in Organic Solar Cells
(Georgia Institute of Technology, 2016-07-07)In this Thesis, we aim to elucidate clear connections between the chemical functionality and molecular morphologies of a number of high-performing or benchmark π-conjugated materials used in OSCs. We proceed to link these ... -
CONTROLLED DOPING OF ORGANIC SEMICONDUCTORS AND 2D MATERIALS WITH MOLECULAR REDUCTANTS AND OXIDANTS
(Georgia Institute of Technology, 2016-07-12)New air-stable dimeric n-dopants are synthesized and studied in detail with respect to the kinetics of both their redox reaction in solution with and their doping in the solid-state of various organic semiconductor acceptors. ... -
NOVEL PLATINUM-BASED NANOCRYSTALS AND THEIR USE AS ELECTROCATALYSTS FOR THE OXYGEN REDUCTION REACTION
(Georgia Institute of Technology, 2016-07-21)Owing to the low operating temperature and high power density, polymer electrolyte membrane fuel cells (PEMFCs) are promising candidates to replace the conventional combustion engines in the automotive industry. The poor ... -
Improved diret analysis in real time-mass spectrometry sampling for reproducible quantitative analyses
(Georgia Institute of Technology, 2016-05-10)Transmission-mode direct analysis in real time (TM-DART) is presented as an alternative sampling strategy to traditional methods of sample introduction for DART MS analysis. A custom-designed sample holder was fabricated ... -
Self-assembly of nucleobase analogs in water: supramolecular polymers, controllable materials and models for proto-nucleic acid
(Georgia Institute of Technology, 2015-07-06)Reversible self-assembly in water of small molecules into ordered structures is an essential process that underlies many biological functions and developmental strategies for environmentally responsive and biocompatible ... -
Stochastic Model Building of Photophysics using Hidden Markov Model
(Georgia Institute of Technology, 2015-05-14)Exogenous fluorescence probes have been widely employed in studying complex biological dynamics with high temporal and spatial resolution. A photoinduced dark state can be useful if it can be utilized for a particular ... -
Vibrational spectroscopy of sympathetically laser-cooled CaH+
(Georgia Institute of Technology, 2015-05-13)Cold molecules and molecular ions are leading to a renaissance in the field of molecular spectroscopy just as laser-cooled atoms resulted in a renaissance of atomic physics. Cold molecules enable the performance of ... -
Cubic architectures on the nanoscale: The plasmonic properties of silver or gold dimers and the catalytic properties of platinum-silver alloys
(Georgia Institute of Technology, 2016-04-12)This thesis explores both the optical and catalytic properties of cubic shaped nanoparticles. The investigation begins with the sensing capabilities of cubic metal dimers. Of all the plasmonic solid nanoparticles, single ... -
Visualizing zinc dynamics in cell division and developing zebrafish
(Georgia Institute of Technology, 2016-04-12)Despite the importance of zinc in cell proliferation and development, mechanisms of zinc redistribution during these processes remain largely elusive. Given the limited external supply of nutrients during embryogenesis, ... -
Synthesis and catalytic study of shell-shell, core-shell hollow gold nanocatalysts
(Georgia Institute of Technology, 2016-04-04)Metal nanoparticles have a large surface area to volume ratio compared to their bulk counterparts, which makes them attractive to use as catalysts. Atoms on the surface of metal nanoparticles are very active due to their ... -
Organic light-harvesting materials for power generation
(Georgia Institute of Technology, 2016-04-13)This dissertation focuses on the design, synthesis, and characterization of a variety of organic dyes, semiconducting materials, and surface redox-active modifiers of potential interest to organic-based emerging photovoltaics. ... -
Design and development of dimeric sandwich compounds as n-dopants for organic electronics
(Georgia Institute of Technology, 2016-03-08)Electrical doping of organic semiconductors with molecular oxidants (p-type) or reductants (n-type) can greatly improve charge injection and conductivity in devices. Simple one electron reductants that are capable of ... -
Ring-opening benzannulations of cyclopropenes, alkylidene cyclopropanes, and 2,3-dihydrofuran acetals: A complementary approach to benzo-fused (hetero)aromatics
(Georgia Institute of Technology, 2016-05-27)Over the past decades, functional group manipulation of aromatic precursors has been a common strategy to access new aromatic compounds. However, these classical methods, such as Friedel-Crafts alkylations and electrophi ... -
New analytical approaches for mass spectrometry imaging
(Georgia Institute of Technology, 2015-04-03)Chemical imaging by mass spectrometry is a powerful approach by which to map spatial distributions of molecules to better understand their function in the system of interest. Over the last thirty years, MSI has evolved ... -
Effect of lignin content and structural change during treatment on poplar for biofuel and biomaterial production
(Georgia Institute of Technology, 2015-04-03)Understanding the lignin effect and related structural parameters relevant to the recalcitrance of the plant cell wall and the individual and cooperative effects on enzymatic saccharification are vital for improving current ... -
Architecture and core of the small ribosomal subunit
(Georgia Institute of Technology, 2015-04-02)The ribosome is one of the most universal molecular machinery, synthesizing proteins in all living systems. The small ribosomal subunit plays a crucial role in decoding the messenger RNA during translation. We propose and ... -
Controlling electronic properties and morphology of isoindigo-based polymers for photovoltaic applications
(Georgia Institute of Technology, 2015-01-08)Novel organic conjugated materials have led to new technologies in the field of flexible electronics, with applications in the area of sensors, field effect transistors, or photovoltaic devices. Several material parameters ...
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