Chemistry
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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 ... -
Low-cost analytical tools for compositional analysis of particulate matter
Particulate matter (PM) represents a major health problem to people worldwide, contributing to 4 million deaths annually as reported by the Global Burden of Disease (GBD) study (http://www.healthdata.org). PM toxicity is ... -
Dual nickel- and photoredox-catalyzed enantioselective desymmetrization of meso anhydrides and C-O bond activation via phosphines and photoredox catalysis
Described herein is the application of photoredox catalysis in the development of new synthetic methods. A dual nickel- and photoredox catalyzed desymmetrization of meso succinic anhydrides was developed to generate ... -
Advancing point-of-need bacteria detection using microfluidic paper-based analytical devices
Bacteria are responsible for more hospitalizations and deaths than any other foodborne contaminant, making the detection of these pathogens of utmost importance. To further complicate bacteria detection, the overuse of ... -
Hot injection synthesis and characterization of copper antimony selenide non-canonical nanomaterials toward earth-abundant renewable energy conversion
Renewable and carbon-free energy generation has become a critically important field as the global population continues to increase. Further, the ample supply afforded by natural resources such as sunlight and geothermal ... -
Probing bacteria life stages and quantitative assays using material platforms
The growing concern associated with nosocomial infections has been attributed to both the increasing prevalence of superbugs that are resistant to one or more antibiotic and the decreased susceptibility of bacteria to ... -
Single-nanoflake photoelectrochemistry of MoSe2 thin films
Transition metal dichalcogenide (TMD) thin films represent promising materials for large-area, low-cost, and high-efficiency photoelectrochemical solar energy conversion applications. The outstanding efficiency of bulk TMD ... -
Exploring excited states of transition metal photocatalysts with time dependent density functional theory
Advances in photocatalysis have led to a rise in interests in more sustainable chemistry. It has been shown that visible light can be harnessed through a photocatalyst to promote conventionally unfavorable chemical ... -
Synthetic and biosynthetic studies of okaramine and hapalindole natural products
This dissertation is a report on the first total syntheses of hapalindoles C and D, natural products of a few cyanobacteria. Additionally, we report on our collaborative investigations on the biosynthesis of the hapalindole ... -
Towards understanding the atomistic disorder of synthetic bone mineral
Biominerals are an interesting class of materials due to their complex structures and superior properties as compared to similar materials produced under laboratory settings. These complex structures often demonstrate a ...
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