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Chemistry: Recent submissions
Now showing items 221-240 of 964
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Optimization of Whispering Gallery Mode Microsphere Resonators and Their Application in Biomolecule Sensing
(University of Kansas, 2017-05-31)Optical Whispering gallery mode (WGM) resonators have attracted attention due to their label-free and sensitive detection capabilities for sensing. Light is confined and continuously recirculated within the cavity via total ... -
Electroanalytical measurements of neurotransmitter release and uptake in zebrafish
(University of Kansas, 2016-12-31)Fast-scan cyclic voltammetry at carbon-fiber microelectrodes (FSCV) is a commonly used electrochemical technique to measure sub-second concentration changes in electroactive neurotransmitters, including dopamine, and ... -
The Development of Pot-Economical Strategies for the Synthesis of Natural Products and Analogs
(University of Kansas, 2016-12-31)The development of atom-, redox-, step-, and pot-economical methods for the efficient synthesis of medicinal drugs, bioactive natural products and their synthetic analogs stands at the forefront of modern day organic ... -
ROMP-Derived Alkylating Reagents and Scavengers: Application in Library Development and Sequestration
(University of Kansas, 2016-12-31)The overarching goal of this dissertation is the development and utilization of (ring-opening metathesis polymerization) ROMP-derived high load phosphorus- and sulfur-based soluble, silica and magnetic alkylating reagents ... -
Development and Application of Quinone-Catalyzed C-C Bond Cleavage
(University of Kansas, 2016-08-31)Organocatalysis is a synthetic field of ever increasing development and utility. Of the reactions and small molecule catalysts developed over the last 20 years, a considerable portion have been inspired by cofactors that ... -
P-Stereogenic, Bicyclic Phosphorus Heterocycles and Temporary Tether Strategies for the Synthesis of Complex Polyols
(University of Kansas, 2016-08-31)The development of atom-, redox-, and step-, and pot-economonical strategies for the streamlined synthesis of biologically active small molecules stands at the forefront of modern-day organic synthesis and early-stage drug ... -
Analytical method developments of antibody drug conjugates and disease biomarkers in microdialysis samples
(University of Kansas, 2016-05-31)This dissertation focuses on developing analytical methods to study biomarkers in different pharmaceutical samples. Three different analytical methods were developed for microdialysis samples and antibody drug conjugates ... -
Characterization and Activation of Bioinspired Peroxomanganese(III) Complexes
(University of Kansas, 2016-05-31)Many biochemical reactions critical for life require catalysis by manganese-containing enzymes that react with dioxygen or its reduced forms to generate manganese-oxo, peroxo, or hydroxo intermediates. These reactions are ... -
Polyoxyethylene tallow amine: Environmental fate of an "inert" ingredient
(University of Kansas, 2016-05-31)The surfactant polyoxyethylene tallow amine (POEA) is a common inert ingredient in formulations of glyphosate—the most widely applied agricultural herbicide in the world, which is also commonly used in urban settings. ... -
Orientation dependence of heterogeneous nucleation at the Cu–Pb solid-liquid interface
(AIP Publishing, 2016-09-23)In this work, we examine the effect of surface structure on the heterogeneous nucleation of Pb crystals from the melt at a Cu substrate using molecular-dynamics (MD) simulation. In a previous work [Palafox-Hernandez et ... -
Permeation of the three aromatic dipeptides through lipid bilayers: Experimental and computational study
(AIP Publishing, 2016-06)The time-resolved parallel artificial membrane permeability assay with fluorescence detection and comprehensive computer simulations are used to study the passive permeation of three aromatic dipeptides—N-acetyl-phenylalanineamide ... -
Managing Coordination in Multiteam Systems: Integrating Micro and Macro Perspectives
(Academy of Management, 2016)Multiteam systems (i.e., teams of teams) are frequently used to deal with complex and demanding challenges that require several teams’ joint efforts. However, achieving effective horizontal coordination across component ... -
Hard spheres at a planar hard wall: Simulations and density functional theory
(Institute for Condensed Matter Physics, 2016)Hard spheres are a central and important model reference system for both homogeneous and inhomogeneous fluid systems. In this paper we present new high-precision molecular-dynamics computer simulations for a hard sphere ... -
Removing the barrier to the calculation of activation energies
(AIP Publishing, 2016-10-06)Approaches for directly calculating the activation energy for a chemical reaction from a simulation at a single temperature are explored with applications to both classical and quantum systems. The activation energy is ... -
Simulations of the infrared, Raman, and 2D-IR photon echo spectra of water in nanoscale silica pores
(AIP Publishing, 2016-05-20)Vibrational spectroscopy is frequently used to characterize nanoconfined liquids and probe the effect of the confining framework on the liquid structure and dynamics relative to the corresponding bulk fluid. However, it ... -
Direct reductive coupling of indoles to nitrostyrenes en route to (indol-3-yl)acetamides
(Royal Society of Chemistry, 2016-09-27)A highly efficient one-pot method for the reductive coupling of indoles to nitrostyrenes in polyphosphoric acid doped with PCl3 was developed. This method allows direct and expeditious access to primary (indol-3-yl)acetamides, ... -
New method for in situ generation of enolate-iminium 1,4-dipoles for [4 + 2] and [4 + 1] dipolar heterocycloaddition reactions
(Royal Society of Chemistry, 2016-09-14)Generation of hydrazoylketenes by thermal decomposition of N-(diphenylenamino)pyrrolediones is accompanied by 5-exo-trig ring closure to furnish a zwitterionic dihydropyrazolone species. In contrast to Lisowskaya's earlier ... -
Spiro-condensation of 5-methoxycarbonyl-1Hpyrrole-2,3-diones with cyclic enoles to form spiro substituted furo[3,2-c]-coumarins and quinolines
(Royal Society of Chemistry, 2016-09-02)Highly efficient spiro-condensation enabling cyclic enoles to act as 1,3-bis-nucleophiles in reaction with pyrrole-2,3-diones acting as 1,2-bis-electrophiles was developed. The corresponding furo[3,2-c]coumarins and ... -
Rational design of an efficient one-pot synthesis of 6H-pyrrolo[2,3,4-gh]perimidines in polyphosphoric acid
(Royal Society of Chemistry, 2016-08-25)Several highly efficient one-pot synthetic protocols were developed, enabling polyphosphoric acid-activated nitroalkanes to act as electrophiles in reactions with aminonapthalenes. The featured methods allow for the single ... -
Permeation of the three aromatic dipeptides through lipid bilayers: Experimental and computational study
(AIP Publishing, 2016-06-27)The time-resolved parallel artificial membrane permeability assay with fluorescence detection and comprehensive computer simulations are used to study the passive permeation of three aromatic dipeptides—N-acetyl-phenylalanineamide ...