Chemistry
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Investigation of chiral porphyrin aggregates with heterodyne-detected vibrational sum frequency generation spectroscopy
In nature, photosynthetic organisms harvest and transport solar energy through the finely-tuned interplay between vibrational, electronic, and excitonic characteristics within photosynthetic reaction centers. These ... -
Affinity maturation and characterization of novel binders to the HIV-1 TAR element based on the U1A RNA recognition motif
The increased understanding of the importance of RNA, both as a carrier of information and as a functional molecule, has led to a greater demand for the ability to target specific RNAs, but the limited chemical diversity ... -
Physical and chemical characteristics behind membrane interactions of small molecules and electron transporters
There are many types of molecules that interact with and within membranes whereas many factors can dictate how they interact with membranes. Often, the interactions with the membrane interface can affect the mechanism of ... -
Polymeric films, emulsions, and nanofibers for medical applications
Natural polymers such as cellulose and proteinaceous materials including hair or animal tissue have been used since prehistory. Their use was appropriate until they no longer met the criteria for the intended applications. ... -
Synthesis, postsynthetic modification, and investigation of metal-organic frameworks for environmental and biological applications
Metal-organic frameworks (MOFs) are unique porous coordination polymers having record-high surface areas, and tunability at both the organic linkers and metal ions. As such, MOFs are advantageous for various applications ... -
Defect tolerance, anharmonicity, and organic-inorganic coupling in hybrid organic-inorganic semiconductors
Implementing and improving sustainable energy technologies is predicated upon the discovery and design of new semiconducting materials. Perovskite halides represent a paradigm shift in solar photovoltaic technologies, as ... -
Selective functionalization of pyridines and diazines via nucleophilic addition to heterocyclic phosphonium salts
Nitrogen heterocycles, specifically pyridines and pyrimidines, are common motifs found in pharmaceuticals, agrochemicals and materials. Site-selective functionalization of these azines are highly sought after for medicinal ... -
Organopolymerization of multifunctional γ-butyrolactones
The complexity of polymerizations increases drastically as the functionality of monomers increases, which brings about challenges for elucidation of polymerization mechanisms, establishing control of the polymerization, ... -
Investigations into photocatalysis and electronic structure for transition metal and actinide complexes
Presented herein are investigations into the electronic structure of various metal complexes and how they effect reactivity. The first chapters are centered on how [Cr(Ph2phen)3]3+ reacts as a photooxidant. The latter part ... -
Supporting data for the manuscript "Modeling the formation and composition of secondary organic aerosol from diesel exhaust using parameterized and semi-explicit chemistry and thermodynamic models"
Laboratory-based studies have shown that combustion sources emit volatile organic compounds that can be photo-oxidized in the atmosphere to form secondary organic aerosol (SOA). In some cases, this SOA can exceed direct ... -
Plasma processing and quantitative characterization of 3D polymeric materials to enhance antibacterial properties for biomedical applications
To view the abstract, please see the full text of the document. -
Biogenic nanoparticles and their application in biological electron microscopy
Interest in nanomaterials has seen a dramatic increase over the past twenty years. In recent years many have turned toward proteins to aid in developing novel materials due to the mild reaction conditions, functionalization, ... -
Engineering phthalocyanines and carbon composites for use in sensing, microfluidics and dye sensitized solar cells
The focus of this thesis is on fundamental and applied electrochemistry in the areas of photovoltaics, sensors, and microfluidics. Photovoltaics are important as they are needed to reduce the amount of greenhouse gases, ... -
Developing high-performance microfluidic paper-based analytical devices
Small-scale systems to manipulate fluids, also referred to as microfluidics, have proven effective at reducing analytical costs by increasing the portability of diagnostic devices. Microfluidic paper-based analytical devices ... -
Microfluidics for environmental analysis
During my graduate dissertation work I designed and utilized microfluidic devices to study, model, and assess environmental systems. Investigation of environmental systems is important for areas of industry, agriculture, ... -
Visualizing dynamics using 100 kHz 2D IR spectroscopy and microscopy
2D IR spectroscopy is a nonlinear optical method with the ability to characterize condensed phase chemical systems. It offers information regarding structure and dynamics of chemical systems. Recent efforts have been made ... -
Water oxidation catalysis beginning with cobalt polyoxometalates : determining the dominant catalyst under electrocatalytic conditions and investigation of the surface properties of Co3O4 nanoparticles
Generation of hydrogen as a fuel is one of the most promising technologies for a renewable energy future. Electrocatalytic water splitting can take energy from virtually any power source and split water into oxygen and ... -
Role of organic matter chemistry in iron redox transformations, sorption to iron oxides, and wetland carbon storage, The
Organic carbon comprises a versatile and complex class of compounds that influence water quality, soil health, fate and transport of environmental contaminants, biogeochemical cycles, and climate change. Key to predicting ... -
Radiofrequency heating of nanoclusters and nanoparticles for enzyme activation
Radiofrequency (RF) fields heat magnetic nanoparticles. Applications include remote drug delivery and noninvasive cancer therapy. The underlying objective is to increase temperatures precisely where desired without heating ... -
Design and synthesis of biologically active Largazole derivatives, including development of improved syntheses of Largazole analogs
Natural product histone deacetylase inhibitor, Largazole, has been developed into a streamlined synthetic pathway for the development of a complex library of analogs. The library developed within the Williams laboratory ...
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