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Now showing items 21-40 of 42
A comparison of some methods of estimating radium
(University of Missouri--Columbia, 1914)
types of alpha ray electroscopes extensively used for the determination of small quantities of radium by the emanation method. The known quantities of the radium emanation required in these experiments were obtained, (1) from uraninite (Pitchblende...
The investigation of the self-assemblies of pyrogallol [4] arenes with large metal ions
(University of Missouri--Columbia, 2022)
Supramolecular chemistry involves the study of the non-covalent interactions between molecules. Host molecules such as C-pyrogallol[4]arenes form complexes via these supramolecular interactions. Pyrogallol[4]arenes are ...
Investigating the bifunctional chelate approach for radiopharmaceutical development
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Radiopharmaceuticals are drugs that contain a radioactive atom for the purpose of imaging or therapy of disease. The type of emission determines the ...
Synthesis and reactivity of low-valent uranium and neptunium complexes
(University of Missouri--Columbia, 2019)
Chapter 1 reports the synthesis and characterization of U(IV) and Np(IV) selenium bis(phenolate) complexes. The reaction of the U(IV) complex with half an equivalent of p-benzoquinone results in the formation of a U(V)--U(V) ...
Synthesis of rhenium complexes as models for new sigma receptor imaging agents
(University of Missouri--Columbia, 2009)
The sigma receptor has been biologically found to play roles in the central nervous system (CNS) disorders and cancer cell proliferation. With the identification of lead sigma receptor binding ligands by previous structure ...
Studies of natural products that reveal novel strategies for efficient modification of DNA
(University of Missouri--Columbia, 2006)
DNA is the central molecule in cells. The correct function of cells depends on the structure of DNA. DNA damaging natural products often show cytotoxic or mutagenic properties, which many times land them medicinal value ...
Evaluation for ammonium bifluoride dissolution for application to post-detonation nuclear forensics and rare Earth element extraction
(University of Missouri--Columbia, 2019)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] If a nuclear device were to be used in an act of terrorism, prompt nuclear forensic analysis of the post-detonation debris is crucial in order to ...
LC-MS/MS method development for quantitative analysis of cyanogenic glycosides in elderberry and lipid peroxidation products in mice
(University of Missouri--Columbia, 2021)
Cyanogenic glycosides (CNGs) are naturally occurring plant molecules (nitrogenous plant secondary metabolites) which consist of an aglycone and a sugar moiety. Hydrogen cyanide (HCN) is released from these compounds following ...
Coulomb explosions dynamics
(University of Missouri--Columbia, 2022)
Chemical reaction dynamics studies emerged with the advent of quantum mechanical theories in 1920s which have the capability of predicting the atomic motions by calculating potential energy surfaces. Experimental studies ...
Novel chemical mechanisms of DNA damage by natural products
(University of Missouri--Columbia, 2007)
that the molecule is very toxic to human pancreatic carcinoma cell line (MiaPaCa) and fragments DNA extensively with an IC[subscript 50] of 50 nM. The elucidation of molecular mechanism behind the rapid depurination event might help to understand more about...
Synthesis and photochemistry of PT (IV) hydroxo complexes
(University of Missouri--Columbia, 2015)
Global energy consumption and the production of clean renewable energy have become greater challenges. Sunlight-induced splitting of water into H2 and O2 is one of the leading strategies to achieve clean and renewable ...
Synthesis and evaluation of 105Rhodium(III) complexes derived from diaminodithioether (DADTE) ligands
(University of Missouri--Columbia, 2006)
Seven analogoues of tetradentate acyclic diaminodithioether (DADTE)ligands were synthesized and characterized. R₂SC(R₁)₂)CHnN(CH₂)mNCHn((R₁)₂C)SR₂ 222-gdm (L3): m = 1, n = 1, R₁ = -CH₃ and R₂ = -H; 222-gdm-pmBz (L4): m = ...
Technetium and rhenium schiff base complexes for nuclear medicine
(University of Missouri--Columbia, 2019)
This dissertation investigates the synthesis of rhenium and technetium Schiff base complexes for potential applications in nuclear medicine. In Chapter 2, a series of mixed ligand Re(III) complexes of the form trans-[Re( ...
Broadband rotational spectroscopy in Laval flows: applications in astrochemistry and dynamics
(University of Missouri--Columbia, 2022)
This dissertation presents the successful implementation of a Chirped pulse Uniform Flow (CPUF) apparatus capable of conducting experiments at low temperatures to examine photodissociation/reaction dynamics and kinetics ...
Synthesis and reactivity of actinide phosphorano-stabilized carbene and phosphido complexes
(University of Missouri--Columbia, 2018)
Nuclear power plants have been operated in the United States for over 60 years, generating over 800 terawatt-hours of energy per year. However, there is still no reliable process to recycle the spent nuclear fuel. This ...
Atomic-scale studies of chemical and transport processes relevant to propellant combustion
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Density functional theory (DFT) and correlated molecular orbital electronic structure calculations were used to study the Al + CO2 [subscript arrow] ...
Investigations into the chemistry of protein tyrosine phosphatase redox regulation
(University of Missouri--Columbia, 2009)
Transmission of complex intracellular signals, such as those for glucose uptake or proliferation, is often accomplished through the reversible phosphorylation of specific protein tyrosine residues. This reversible ...
Biologically relevant chemistry of sulfur heterocycles : from redox regulation of PTP1B to the biological activity of s-deoxy leinamycin
(University of Missouri--Columbia, 2008)
Protein tyrosine phosphatase 1B (PTP1B) is an important member of protein tyrosine phosphatase (PTPs) family that shares a conserved catalytic cysteine thiol residue. PTP1B acts as a negative regulator of insulin mediated ...
Anisotropic shock response of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)
(University of Missouri--Columbia, 2020)
The thermo-mechanical response of shock-induced pore collapse has been studied using non-reactive all-atom molecular dynamics (MD) and Eulerian continuum simulations for the molecular crystal 1,3,5-triamino-2,4,6-trinitrobenzene ...
Oxidative molecular layer deposition of redox-active thin-film polymers
(University of Missouri--Columbia, 2022)
Thin film materials research for a more sustainable future is growing rapidly and new techniques for depositing these films are beginning to surface. One such technique is highlight in this body of work using gaseous ...