Browsing Chemistry by Title
Now showing items 81-100 of 463
-
Correlated Electronic and Vibrational Motion: A Direct Perspective Through Multidimensional Electronic-Vibrational Spectroscopy
Developing a thorough mechanistic understanding of photoexcited charge transfer and proton transfer reactions at the molecular-level requires a deep knowledge of coupled electronic and nuclear motion. Two-Dimensional ... -
Correlating Electronic and Nuclear Motions in Ultrafast Photoinduced Charge Transfer Reactions with Femtosecond Multidimensional Spectroscopies
(2013-07-23)Photochemical reactions in solution are probed using femtosecond multidimensional infrared spectroscopies to elucidate the role high-frequency vibrations play in condensed phase charge transfer processes. In all cases ... -
Correlating nanoscale optoelectronic and mechanical properties of solution processable thin film photovoltaic materials using scanning probe microscopy
Solution processable materials present a competitive alternative to traditional silicon solar cells based on inexpensive processing and flexible form factors. Several competing technologies have entered the market in the ... -
CRISPR-Cas Tools for Engineering Genome Structure and Gene Expression
This thesis focuses on the development of two distinct sets of CRISPR-Cas tools: one for gene tethering and the other for logic-based transcriptional regulation. The first tool is a CRISPR-based gene tethering tool. The ... -
Cross Coupling of Alkenyl Gold Complexes with Alkyl Electrophiles and Nickel Catalyzed Hydroarylation of Alkenes
Transition metal catalysis is a powerful strategy for the construction of organic molecules. The development of novel methods in this field can help improve the speed and efficiency with which we synthesize complex organic ... -
Cross-Conjugated Moieties as Design Motifs for a Class of Novel Electro-Optic Chromophores
(2014-04-30)Organic electro-optic materials are at the forefront of current photonics applications that enable high speed data transmission, micro-scale sensors, and terahertz applications. Typically linearly conjugated push-pull type ... -
Cross-linking Methods for 3D Printable Hydrogel Materials
Stimuli-responsive hydrogels have gained increased attention for a broad range of biomedical and biotechnological applications. Synthetic polymeric systems are an attractive platform as they afford tunability through the ... -
Cross-Nucleophile coupling: synthesis of a new C-C bond between alkylboranes and boronates
Many general methods are now available for the cross-coupling of carbon nucleophiles with carbon electrophiles, and even the couplings between two electrophiles have been gradually developed in the last decade. There remain ... -
Dancing at the Interface: Surface-Mediated Active Site Dynamics within Molecular Nanoclusters
The key to accessing next-generation heterogeneous catalysts, which lie at the heart of many industrial manufacturing and energy conversion processes, is the identification and detailed surveillance of the catalytic active ... -
Deciphering the biochemical crosstalk of histone sumoylation in human chromatin
The histone code hypothesis states that posttranslational modifications (PTMs) of amino acids at the histone protein termini can combinatorially regulate key DNA processes such as replication, repair, and transcription. ... -
Defect-Related Luminescence in Nanocrystals: Spectroscopy and Computation
Dopants and defects play an important role in the luminescence of semiconductors, from classic bulk phosphors to more recently developed colloidal nanocrystals. This thesis describes several studies on the photophysics of ... -
Design and Characterization of Novel Tandem Ion Mobility Mass Spectrometry Instrumentation
Native ion mobility (IM) mass spectrometry (MS) is a gas-phase structural biology technique that couples low-pressure, electrophoretic separation of ions with mass detection to provide low-resolution information on the ... -
Design and Synthesis of New Organic Semiconductors for Organic Solar Cells
Molecular design and synthesis play critical roles in the development of organic semiconductors for organic photovoltaics (OPVs). This dissertation describes the design, synthesis, and characterization of three classes of ... -
Design and Synthesis of Organic Functional Materials for Energy Conversion and Storage Applications
Carbon emission from consumption of fossil fuels has led to global warming accompanying with a large number of environmental issues. In order to lessen the strong dependence on fossil fuels in modern society, it is crucial ... -
Design principles for cadmium chalcogenide nanoparticle assembly via peptoids
Self-assembled organic nanomaterials can be generated by bottom-up assembly pathways where the structure is controlled by the organic sequence and altered using pH, temperature, and solvation. These nanomaterials have been ... -
Design, synthesis, and evaluation of cholera toxin inhibitors and [alpha]-helix mimetics of dormancy survival regulator
(2006)Infectious diseases cause millions of deaths each year. The top single disease killers include tuberculosis (TB) and diarrheal diseases. The diarrheal diseases caused by cholera toxin (CT) and Escherichia coli heat-labile ... -
Designing nickel- and palladium-based precatalysts to improve catalyst-transfer polymerization towards conjugated polymer synthesis
Catalyst transfer polymerization (CTP) is a versatile synthetic tool to obtain access to sequence specific π-conjugated polymers, which are attractive materials for organic electronics. CTP proceeds through a chain-growth ... -
Designing Polymer Hydrogels for Extrusion-Based Additive Manufacturing
Additive manufacturing (AM) technologies are expanding the boundaries of materials science and providing an exciting forum for interdisciplinary research. The ability to fabricate arbitrarily complex objects has made AM ... -
Designing Quantum Dot Interfaces for Photoredox Catalysis
Chemical manufacturing accounts for 10% of total global energy consumption and 7% of greenhouse emissions. Thermodynamically uphill reactions may be driven by photoredox catalysts under ambient conditions, converting solar ...