Browsing Graduate Theses and Dissertations - Chemistry by Title
Now showing items 112-131 of 147
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Self-assembly into Soft Materials of Molecules Derived from Naturally-occurring Fatty-acids
(Georgetown University, 2016)The self-assembly of molecular gelators has provided an attractive route for the construction of nanostructured materials with desired functionalities. A well-defined paradigm for the design of molecular gels is needed, ... -
Single-molecule Analysis of the Role of Flavin Adenine Dinulcleotide in the Conformational Landscapes of Drosophila Cryptochrome
(Georgetown University, 2020)The circadian clock regulates biological and behavioral adaptations in response to day-night cycles. Cryptochromes (CRYs) are members of a family of photolyases involved in DNA repair that are responsible for the oscillation ... -
Single-Source Precursors for the Synthesis of Layered Metal Chalcogenide Nanomaterials: LnX2, CuCrX2, and Bi2X3
(Georgetown University, 2021)Layered materials belong to a class of compounds in which individual, 2-dimensional units are stacked upon each other and held together by weak intermolecular forces. The layered nature of these materials render them ideal ... -
SMALL MOLECULE BINDING OF INTRINSICALY DISORDERED PROTEINS: MULTIPLE BINDERS ON MULTIPLE SITES
(Georgetown University, 2009)Intrinsically disordered (ID) proteins lack a stable tertiary structure and exist in an ensemble of rapidly inter-converting conformations. They are prevalent in human and other genomes, and are biologically active in ... -
Solid State Synthesis and Study of Porous Materials
(Georgetown University, 2019)The synthesis and study of porous materials is important due to their many potential uses (storage and separation of gases, catalysis, electronic devices, etc.) These materials are typically made by solvothermal methods, ... -
Spectroelectrochemical Investigation of the Electrocatalysis of Platinum-based Nanocatalysts for Fuel Cell Application
(Georgetown University, 2013)Spectroelectrochemical measurements, namely ATR-SEIRAS (attenuated total reflection-surface enhanced IR reflection absorption spectroscopy) and EC-NMR (electrochemical-nuclear magnetic resonance), were performed to determine ... -
STRUCTURAL AND CATALYTIC ROLES OF CYSTEINE RESIDUES IN HUMAN LYSYL-tRNA SYNTHETASE
(Georgetown University, 2014)Aminoacyl-tRNA synthetases (AARS) are essential and ubiquitous enzymes responsible for attaching amino acids to their cognate tRNAs during protein biosynthesis in a process known as aminoacylation. Comparing the amino ... -
Structural Changes and Diffusion of Vacancy Clusters in Diamond and Paracyclophane Cycloaddition: Insights into Unusual Carbon Bonding
(Georgetown University, 2013)High energy irradiation of diamond produces point defects that are observable by spectroscopy. While many defects have been confirmed such as the monovacancy V1, the divacancy V2, and various interstitials, most remain ... -
Structure-Property Relationships in Photoluminescent Lanthanide, Bismuth, and Lanthanide-Doped Bismuth Organic Hybrid Materials
(Georgetown University, 2021)Motivated by demands for novel luminescent materials and design strategies, this work focuses on the synthesis, structural characterization, and photoluminescent properties of solid-state lanthanide (Ln), bismuth (Bi), and ... -
Studies of Malarial Parasite Chloroquine Resistance Transporter and Kinase Proteins: Key Targets for Evolving Drug Therapies
(Georgetown University, 2017)The emergence of drug resistance is a developing problem in treating the global health burden that is Plasmodium (malaria) infections. Mutations in the Plasmodium falciparum chloroquine resistance transporter (PfCRT) have ... -
Synthesis and Characterizations of Gold Chalcogenolate-Protected Nanoclusters and Nonoparticles: Structural Analysis by 77SE and 125TE NMR
(Georgetown University, 2015)The objective of this thesis is to study the synthesis and characterizations of gold nanoparticles (Au NPs) and nanoclusters (Au NCs) with different anchoring elements, S, Se, and Te. 77Se and 125Te both are nuclear magnetic ... -
Synthesis And Functionalization Of Xenon Binding Cryptophanes
(Georgetown University, 2015)To better understand the xenon binding properties of (±)-cryptophane-111 (111), crystals of its xenon and krypton complexes were prepared and analyzed by both single crystal and powder X-ray diffraction. The thermal ... -
Synthesis and Physical Properties of Europium Chalcogenide Solid-Solution Nanomaterials
(Georgetown University, 2017)The europium chalcogenides (oxide, sulfide, selenide, and telluride) are intrinsic condensed magnetic semiconductors. This class of materials exhibits strong coupling of the electronic, optical, and magnetic properties ... -
SYNTHESIS AND SOLID-STATE STUDIES OF CRYPTOPHANE-BASED MATERIALS
(Georgetown University, 2011)Continued political unrest in oil producing countries has led the United States to search for new sources of energy technology, such as fuel cells and gas storage materials. Natural gas, which is comprised primarily of ... -
Synthesis and Study of Magnetic Nanostructures
(Georgetown University, 2012)Nanostructures of magnetic semiconductors have widespread applications in the field of nanoscale device fabrication. Intrinsic magnetic semiconductors of the europium chalcogenide family (EuO, EuS, EuSe, EuTe) are of ... -
Synthesis of Europium-Based Magnetic Semiconductor Nanocrystals and Studies of Their Electronic Properties
(Georgetown University, 2021)The divalent europium monochalcogenides (EuQ, Q = O, S, Se, and Te) are model magnetic semiconductors, exhibiting strong coupled magnetic, optical, and electronic properties. With rising interests in the synthesis of ... -
Synthesis of Organofluorine Compounds and Chirality Sensing with Tropos Ligands
(Georgetown University, 2013)Chiral organofluorine compounds play an important role in medicinal chemistry due to the beneficial effects of the fluorine moiety on the physiochemical and pharmacological profiles of drugs. The asymmetric synthesis of ... -
The synthesis of precursors towards a Pin1-activatable Gd(III) MRI contrast agent
(Georgetown University, 2008) -
Synthetic Approaches to Metal Chalcogenide Nanostructures
(Georgetown University, 2017)Both transition metal chalcogenides and rare earth metal chalcogenides are of interest for their electronic, optical, and/or magnetic properties, which have been largely demonstrated in the bulk. Synthesizing metal ...
![Cover for Synthesis and characterization of substituted dibenzotetraaza[14]annulenes (DBTAAs)
and DBTAA-modified polymer monoliths : implications for chemical separations](/bitstream/handle/10822/552880/fordKathleen.pdf.jpg?sequence=4&isAllowed=y)
