Index Catalog // ScholarsArchive@OSU

Studies toward the synthesis of halichlorine and pinnaic acid

Creator:: Korf, Eric A.
Abstract:: Three approaches toward the core of halichlorine and pinnaic acid are described. The first approach entails a racemic transannular nitrone-olefin [3+2] cycloaddition from nitrone 238. Construction of the nitrone 238 began with aldehyde 241. Another key feature in this route involved a ring-closing metathesis for the formation of a 14-membered...
Resource Type:: Dissertation
Full Text:: a second paper verifying the absolute configuration of 1 via a degradation study (Scheme 2).2

Polarization spectroscopy and photodissociation studies of nitroaromatic compounds in the gas phase

Creator:: Abbott, James E.
Abstract:: The central purpose of this dissertation was to explore and expand the use of an uniform electric field for orientation and for subsequent spectroscopic investigation of asymmetric polar molecules in the gas phase. The systems of study were nitrobenzene (NB) and the nitrotoluene (NT) isomers. We were able to quantitatively...
Resource Type:: Dissertation
Full Text:: from the pulsed valve. The work done in the expansion led to rapid cooling of the thermal

Analysis of semi-volatile organic contaminants and their accumulation in remote aquatic ecosystems of the western US

Creator:: Ackerman, Luke K.
Abstract:: Many pesticides, polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and polycyclic aromatic hydrocarbons are persistent, bio-accumulative, and toxic. These semi-volatile organic compounds (SOCs) can undergo atmospheric transport and deposition in cold, remote ecosystems. A better understanding of their accumulation in the fish of these ecosystems is important to better predict...
Resource Type:: Dissertation
Full Text:: large range of persistence, with environmental half- lives ranging from hours to years(26). Degradation

Development, validation and the application of a congener specific photodegradation model for PBDEs

Creator:: Zeng, Xia
Abstract:: The thermodynamic properties of 39 PBDEs have been calculated using Gaussian 03 on the B3LYP/6-31G(d)//B3LYP/6-31G(d) level. The PBDE congeners' enthalpies of formation increase with increasing number of bromines and show a strong dependence on the bromine substitution pattern. The effects of bromine substitution pattern have been quantitatively studied by GAM...
Resource Type:: Dissertation
Full Text:: (Continued) Page CHAPTER 4. APPLICATION OF A CONGENER SPECIFIC DEGRADATION MODEL TO STUDY

From electrophoresis to dielectrophoresis: designing, fabricating, and evaluating an electroformed ratchet type microfluidic dielectrophoresis device

Creator:: Gonzalez, Carlos F.
Abstract:: Dielectrophoresis (DEP) is a separation method in which a non-uniform electric field is used to induce a dipole moment in a suspended particle. If the polarization of the particle is greater than that of the suspending medium, the particle will move towards the region of higher field strength (positive DEP);...
Resource Type:: Dissertation
Full Text:: employed, which reduces the effects of thermal motion and thus allows DEP to be applied to particles

Graphite intercalation compounds containing fluoroanions

Creator:: Katinonkul, Watcharee
Abstract:: New chemical synthesis strategies have been investigated for the preparation of acceptor-type graphite intercalation compounds (GIC's) with fluoroanions in order to obtain new materials and to develop a better understanding of the synthetic approaches and properties of the products. New GIC's containing borate chelate anion such as bis(oxalato)borate, CxB[OC(O)C(O)O]₂•δF, are...
Resource Type:: Dissertation
Full Text:: incomplete degradation of intercalates. Most likely, anions and their degradation products are trapped in

Studying fusion reactions for effect of PCN on heavy nucleus formation and for nuclear structure effects

Creator:: Naik, Radhika
Abstract:: The fusion reaction ²⁰⁸Pb (⁵⁰Ti, xn) ²⁵⁸⁻x Rf (x = 1-3) was studied to determine PCN (probability that the mononucleus system evolves to form a compound nucleus inside the fission saddle point) and to establish the value of Wsur (survival probability) for the given reaction experimentally. The fission excitation function...
Resource Type:: Dissertation
Full Text:: thousands of miles away from home. You have been the most indispensable source of strength for me! Thank

Wide band gap semiconductors and insulators : synthesis, processing and characterization

Creator:: Hersh, Peter A.
Abstract:: The work presented here is focused on applying basic principles of solid-state chemistry to the study and development of new wide band-gap semiconductors and insulators for photovoltaic and electronic-device applications. Analysis of crystal structure, band structure, optical band gap, morphology and transport properties provides fundamental insight into materials performance as...
Resource Type:: Dissertation
Full Text:: Synthesis and Study of Materials for Application in

Quantitative determination of emerging contaminants, solvent stabilizers and fullerene nanomaterials, in biological and environmental systems

Creator:: Isaacson, Carl W.
Abstract:: To determine the impact of emerging environmental contaminants on human and environmental health, quantitative analytical methods are required. Analysis of emerging contaminants is hampered by their widely varying physical-chemical properties. Therefore quantitative analytical methods must be developed to determine the behavior of emerging contaminants in environmental systems. A quantitative analytical...
Resource Type:: Dissertation
Full Text:: . Additionally, transport and degradation of contaminants will differ depending on the physical-chemical

High quantum-yield phosphors via quantum splitting and upconversion

Creator:: Jeong, Joayoung
Abstract:: The Gd3+ ion has been used to induce quantum splitting in luminescent materials by using cross-relaxation energy transfer (CRET). In Nd:LiGdF4, quantum splitting results from a two-step CRET between Gd3+ and Nd3+, first involving a transition 6G→6I on Gd3+ and an excitation within the 4f3 configuration of Nd3+ followed by...
Resource Type:: Dissertation
Full Text:: small gap, excessive thermal population of the 5d level results. As seen from Fig. 1.3, a small

Design, fabrication and application of a microfluidic nanofiltration module for separation and purification of macromolecules and nanoparticles

Creator:: Rundel, Jack T.
Abstract:: A microfluidic nanofiltration module has been designed, fabricated and applied to the continuous-flow, pressure-driven, post-synthetic purification of macromolecules and nanoparticles via diafiltration using a commercially available organic solvent resistant nanofiltration membrane, STARMEM 122. This module will readily interface with other microscale components within a "nanofactory" for the rapid synthesis, purification...
Resource Type:: Dissertation
Full Text:: -time manufacturing, thus reducing the possibility of degradation during transport and storage

Luminescent sulfides and solution-deposited oxide thin films

Creator:: Anderson, Jeremy T.
Abstract:: Solid state luminescent sulfides are prepared as powders in order to elucidate the relationship between structure and light emission. While the sulfides studied in this dissertation are known phosphors, materials are investigated in a variety of new ways. Elementary properties and structures of MgS are reviewed, and preparation of MgS...
Resource Type:: Dissertation
Full Text:: .............................................................................................. 48 3-3 Proposed thermal reaction between MgS and KF by the process of source-layer-diffusion

Synthesis and characterization of novel stationary phases for small scale liquid chromatographic separations of proteins and nanoparticles

Creator:: Hutanu, Daniela
Abstract:: The emerging field of nanotechnology strictly requires the micro-scaling of the available separation technology and the design of novel devices for separations of molecules of interest. The separation of proteins and nanoparticles is challenging due to their relatively large size, non-specific adherence to surfaces and instability in many solvents. This...
Resource Type:: Dissertation
Full Text:: anisotropic thermal parameters. In the crystal structure of Au 11 crystals, the Cl- anion and solvent

A Diels-Alder approach to biaryl synthesis

Creator:: Ashburn, Bradley O.
Abstract:: An expedient approach to the synthesis of a wide range of highly programmable biaryl templates has been accomplished. Utilizing the Diels-Alder [4+2] cycloaddition, a wide range of tri- and tetra-ortho-substituted biaryls have been synthesized in only three to four steps from commercially available materials. We have successfully synthesized entire classes...
Resource Type:: Dissertation
Full Text:: consisting of four stacked rings with a seven-fold symmetry axis. Proteins destined for degradation are

Synthesis of novel ambifunctional atropisomeric 2,2',6,6'-tetrasubstituted biphenyls and investigation of their properties and organocatalytic activity

Creator:: Sephton, Mark Alan
Abstract:: Ambifunctional axially chiral 2,2',6,6'-tetrasubstituted biphenyls containing nucleophilic (or basic) functional groups juxtaposed with hydrogen-bond donors were synthesized and their properties studied. Applications for the prepared biaryls as potential organocatalysts for enantioselective carbon-carbon bond forming reactions were examined. Processes investigated included: aldol, Michael, nitroaldol (Henry), and Baylis-Hillman reactions. The novel amidoamine...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Mark Alan Sephton for the degree of Doctor of Philosophy

Atropisomeric 8,8'-biquinolyl derivatives : synthesis, properties and applications

Creator:: Milicevic, Selena D.
Abstract:: 7,7'-Dihydroxy-8,8'-biquinolyl (azaBINOL) was prepared from 7-hydroxyquinoline via N,N-dimethyl O-quinol-7-yl carbamate by directed ortho-metallation followed by FeCl₃-mediated oxidative coupling of the 8-lithioquinoline intermediate. Saponification of the resulting dicarbamate provided crystalline (±)-azaBINOL in 56% overall yield. 6,6'-Bis(dimethylaminocarbonyl)-7,7'-dihydroxy-8,8´-biquinolyl was prepared from the same dicarbamate by a double anionic-Fries rearrangement in 43% yield. 7,7'-Bis(diethylamino-carbonyloxy)-6,6'-diiodo-8,8´-biquinolyl...
Resource Type:: Dissertation
Full Text:: Microsoft Word - FSContents.doc AN ABSTRACT OF THE

Large volume (1,800 µL) injection HPLC/MS/MS for the quantitative determination of illicit drugs and human urinary biomarkers in municipal wastewater

Creator:: Chiaia Hernandez, Aurea C.
Abstract:: A sensitive, selective, rapid analytical method based on large-volume injection (LVI) liquid chromatography/ tandem mass spectrometry was developed using commercially-available hardware that eliminates the need for either off-line or on-line solid phase extraction. Centrifugation followed by the direct injection of 1,800 µL was used for the quantification of illicit drugs,...
Resource Type:: Masters Thesis
Full Text:: , which is the end product of phosphocreatinine degradation (16), can be quantified in wastewater due to

Aqueous chemistries for oxide electronics

Creator:: Meyers, Stephen T.
Abstract:: The variegated aqueous chemistries of metal cations are applied to the design and synthesis of non-toxic solution precursors suitable for additive printing of large-area oxide electronics. Polycondensation behaviors of aqueous Al+3 and PO4 +3 are manipulated in the deposition of atomically smooth amorphous aluminum oxide phosphate (AlPO) dielectric films. AlPO...
Resource Type:: Dissertation
Full Text:: of a thermal inkjet print head ................ 26 2.1 Schematic representation of a staggered

Direct patterning of solution deposited metal oxides

Creator:: Stowers, Jason K.
Abstract:: Patterning of metal oxides typically involves a multi step process, involving depositing a resist, patterning that resist with some form of lithography, etching the oxide through the resist, and finally removing. This process can be simplified if the resist is removed and replaced with a metal oxide that can be...
Resource Type:: Dissertation
Full Text:: ............................................................................................. 61 3-5 SEM of EUV exposed sample degradation....................................... 62 3-6 Contrast

Catalytic desymmetrization of D₂d̳-symmertic proprochiral tetrasubstituted biphenyl compounds: a novel approach to the synthesis of axially chiral C₂-symmetric molecules

Creator:: Gunderson, Jeremey Tyson
Abstract:: Many D2d-symmetric 2,2',6,6'-tetrasubstituted biphenyls are readily prepared via net oxidative dimerization of appropriate 1,3-disubstituted benzenes. Conversion of such proprochiral compounds to useful C2-symmetric chiral biphenyls requires formal replacement of two substituents on opposing aryl ring units with alternate groups. This under exploited desymmetrization tactic has been demonstrated for the generation...
Resource Type:: Masters Thesis
Full Text:: / degradation of 2,2’-tetrahalobinaphthyls…………………. 23

A critical comparison of methods for the determination of phytoplankton chlorophyll

Creator:: Salinas, John T.
Abstract:: The concentration of chlorophyll in natural bodies of water is commonly determined as a means to rapidly estimate the phytoplankton biomass. The literature gives numerous warnings, however, as to the problems involved with accurately determining chlorophyll concentrations. The author's work at Crater Lake, Oregon enticed him to explore critically the...
Resource Type:: Masters Thesis
Full Text:: spectrum of chlorophyll-c and absorption spectrum of phaeophytin-c 7 Degradation of the chlorophylls 9

Fabrication and application of polymer based microfluidic devices

Creator:: Koesdjojo, Myra T.
Abstract:: The concept of reducing laboratory operations in scale such that they fit on a microfluidic chip has been met with great enthusiasm. Lab-on-a-chip devices promise to be cost effective to operate due to reduced reagent consumption, have the potential to offer shorter analysis times due to their short path lengths,...
Resource Type:: Dissertation
Full Text:: to either photodegradation or thermal degradation, or combination of the two. In this process, the

Determination of ethyl glucuronide and ethyl sulfate as human biomarkers of alcohol exposure in urine by liquid chromatography/electrospray tandem mass spectrometry with large volume injection

Creator:: Hu, Yan
Abstract:: This research was undertaken to develop a sensitive, selective, and rapid analytical method to measure ethyl glucuronide (EtG) and ethyl sulfate (EtS) in urine as urinary biomarkers of alcohol exposure. Large-volume injection (LVI) coupled with liquid chromatography / electrospray tandem mass spectrometry was used to eliminate the need for either...
Resource Type:: Masters Thesis
Full Text:: volume of solvent of low elutropic strength containing the sample effectively acts as the initial

Micro total analysis system for in-situ and autonomous spectrophotometric monitoring of iron in groundwater

Creator:: Koch, Corey R.
Abstract:: We have developed a compact micro total analysis system (μTAS) to serve as a platform for in-situ spectrophotometric water quality monitoring. Individual fluidic, optical, and electrical components were designed, developed, and characterized. These components were combined in both an integrated (single lithographic “chip-based” platform) and a modular manner. The microfluidic...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF

Part I: Synthetic studies toward the southern portion of Azaspiracid-1; Part II: Total synthesis of amphidinolide B₁ and the proposed structure of amphidinolide B₂

Creator:: Lu, Liang
Abstract:: The structural architecture present in marine toxin azaspiracid - 20 stereocenters, 9 rings, 3 separated spirocenters - has attracted considerable synthetic attention. Our efforts toward the synthesis of azaspiracid have led to the completion of both C₁-C₂₆ northern and C₂₇-C₄₀ southern halves. Herein, the synthesis of southern FGHI ring system...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Liang Lu for the degree of

Studies towards the total syntheses of (+)-phomactins A, D and G

Creator:: Schwartz, Keith D.
Abstract:: Studies towards the total synthesis of (+)-Phomactin A (1), D (6), and G (9), fungal metabolites with unique molecular architecture and pronounced biological activity, are described. These studies resulted in the synthesis of advanced intermediates 354 and 356, which contain all of the carbon atoms of 1, 6 and 9....
Resource Type:: Dissertation
Full Text:: -hydroxy group of 78 was eliminated via a thermal retro Diels-Alder reaction that extruded sulfur

Mass spectrometry-based identification and characterization of protein and peptide adducts of lipoxidation-derived aldehydes

Creator:: Chavez, Juan D.
Abstract:: Oxidative stress is recognized as an important underlying factor in the pathogenesis of many degenerative diseases as well as normal senescence. The free radicals, reactive oxygen species (ROS) and electrophiles produced during oxidative stress are capable of modifying nucleic acids, lipids and proteins. There are a variety of oxidative modifications...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Juan D. Chavez for the degree of Doctor of Philosophy in

Magnetic particles for selective extraction of trace analytes in microfluidic devices

Creator:: Tennico, Yolanda H.
Abstract:: The development of micro total analysis systems (µTAS), also called “lab-on-a-chip”, or microfluidic analysis systems, is presented in this dissertation. Various research areas, covering subjects from magnetic particles synthesis to novel microchip fabrication techniques, are explored to develop a lab-on-a-chip system capable of performing magnetic bead-based bioassays. These devices are...
Resource Type:: Dissertation
Full Text:: ……………………………………………...21 1.2.2. Bonding of microfluidic devices………...……………………23 1.2.2.1. Thermal and pressure

New luminescent materials and high-performance solution-processed oxide thin films

Creator:: Jiang, Kai
Abstract:: Crystals of an incongruent-melting compound, Ba₃MgSi₂O₈, were grown by the flux method and its structure was determined by single crystal X-ray diffraction methods. Ba₃MgSi₂O₈ crystallizes in trigonal space group P-3[bar]m1 with a = 5.6123(3) Å, c = 7.2667(9) Å and Z = 1. Eu²⁺ ions prefer one crystallographic Ba site...
Resource Type:: Dissertation
Full Text:: ...................................................................................... 139 7.7 Dispersion of the refractive index of films following 1-h thermal anneals. The

Functional transition metal oxides : structure-property relationships

Creator:: Smith, Andrew E.
Abstract:: Transition metal oxides are an important class of materials for the wide variety optical, electrical, dielectric, magnetic, and thermal properties observed. Their unique structure-property relationships allow for property tuning and often provide insight into the fundamentals of chemistry. The work in this thesis was focused on the design, synthesis and...
Resource Type:: Dissertation
Full Text:: Thermoanalyzer (a) and mounted sample in the thermal chamber (b).........41 2.9 Illustration of an

The chemistry of acetohydroxamic acid related to nuclear fuel reprocessing

Creator:: Matteson, Brent Searle
Abstract:: Used Nuclear Fuel (UNF) contains transuranic (TRU) elements and numerous fission products as a result of the uranium fission process and neutron activation that occur in commercial light water power reactors. Recent environmental and nuclear proliferation concerns have spawned the development of advanced reprocessing techniques to close the nuclear fuel...
Resource Type:: Dissertation
Full Text:: ) μ Ionic Strength ΔGo Gibbs Energy (Standard Conditions) ν Antineutrino ΔH Enthalpy of Reaction

Beginning the search for the inverse fission of uranium

Creator:: Beckerman, John R.
Abstract:: The nuclear reaction ¹⁰⁰Mo(¹²⁴Sn,xn)[superscript 224-x]U has been carried out at E[subscript cot] of 578 MeV and 634 MeV using the facilities and equipment at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory (ORNL) in order to initiate the search for the inverse fission of uranium. Reference...
Resource Type:: Masters Thesis
Full Text:: constructed of a thin piece of Mylar, which is a strong polymer with excellent tensile strength and gas

A photoactivable microfluidic device for heavy metal ion extraction

Creator:: Nammoonnoy, Jintana
Abstract:: The development of microfluidic devices for heavy metal extraction is presented in this dissertation. Various research areas, covering subjects from photochromic compound syntheses to microchip fabrication techniques are explored to develop microfluidic devices capable of extracting heavy metal ions from drinking water. Through integration of the beneficial characteristics of both...
Resource Type:: Dissertation
Full Text:: SP and MC of these compounds proceeds reversibly by both photochemical and thermal mechanisms, and

Structural distortions, phase transitions, and cation ordering in the perovskite and tungsten trioxide structures

Creator:: Woodward, Patrick M.
Abstract:: See pdf
Resource Type:: Dissertation
Full Text:: Patrick M. Woodward for the degree of Doctor of PhilosoDhv in

Synthesis, structure and properties of some transition metal oxides

Creator:: Li, Jun
Abstract:: See pdf
Resource Type:: Dissertation
Full Text:: thermal expansion of the OCuO linkage was found in CuMO2 (M La, In, Sc, Al) delafossite compounds by

Aryl acetylene substituent effects : the synthesis and application of biaryls

Creator:: Naffziger, Michael R.
Abstract:: The work described herein details the synthesis and application of biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents on the aryl ring of the terminal acetylenic carbon. From this work, we successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps from inexpensive commercially...
Resource Type:: Masters Thesis
Full Text:: Brassard’s diene, the TBS-analog of Danishefsky’s diene demonstrated greater thermal stability resulting in

Preparation and characterization of polymer-SiO₂ hybrids

Creator:: Ferguson, Morgan L.
Abstract:: In a search for designed materials that mimic those found in biological systems, combining polymers with inorganic materials in sol-gel chemistry processes has gained momentum in the research world since the 1990's. This work methodically investigated the properties of several related polymer-SiO₂ hybrids prepared by a simple methodology that could...
Resource Type:: Dissertation
Full Text:: silica on the degradation pathway of the polymer. Fourier transform infrared spectra (FTIR) probed the

Studies on new inorganic solid-state borates and oxoanion flourides

Creator:: Peterson, Gregory A. (Gregory Allen)
Resource Type:: Dissertation
Full Text:: solution grown crystals. Differential thermal analysis (DTA) can provide much of the information

Occurrence and distribution of perfluorinated surfactants in groundwater contaminated by fire-fighting activity

Creator:: Bartel, Cheryl Moody
Resource Type:: Dissertation
Full Text:: . Specials thanks to Joe Bartel who has been an endless source of strength and inspiration. TABLE OF

Structure-property relationships in oxides containing tellurium

Creator:: Siritanon, Theeranun
Abstract:: Oxides of post-transition metals often show unique structures and properties due to the presence of lone pair electrons and the diffused s orbitals. The present work focuses on synthesis and characterizations of oxides containing Te, a heavy post transition metal. New series of pyrochlore oxides of the formula Cs(M,Te)₂O₆ (M...
Resource Type:: Dissertation
Full Text:: anisotropic thermal ellipsoids of Te and O (turquoise). ......................... 126 Figure 5.3

Measuring in situ biotransformation in BTEX-contaminated groundwater

Creator:: Alumbaugh, Robert E.
Abstract:: Benzylsuccinate (BSA), methylbenzylsuccinate (methylBSA), and ethylbenzylsuccinate (ethylBSA) are unambiguous anaerobic biotransformation products from toluene, xylenes, and ethylbenzene decay, respectively, and may be used to indicate intrinsic bioremediation is occurring at hydrocarbon-contaminated sites. In order to improve upon current methods that detect and quantify anaerobic hydrocarbon metabolites in field samples, solid-phase-extraction...
Resource Type:: Masters Thesis
Full Text:: .................................... 4 1.2 Proposed pathways for the anaerobic degradation of toluene, xylene and ..............6 1.3

Synthetic studies on indolic enamide natural products: 1. Total syntheses of coscinamide A, concinamide B and igzamide: 2. Synthetic studies towards the synthesis of halocyamine B

Creator:: Ma, Yuelong
Abstract:: The 3-substituded indolic enamide moiety has been found in many marine compounds over the past 20 years. These indolic enamides exhibit various biological properties such as cytotoxic, anthelmintic, antimicrobial and HW-inhibitory activities. Among these indolic enamides, some are (E)-enamides, like coscinamide A and coscinamide B, others are (Z)-configuration in their...
Resource Type:: Masters Thesis
Full Text:: protocol. Following thermal decomposition of the azide 4b, the resulting isocyanate Sb was trapped with

Analysis of semi-volatile organic compounds in high elevation lake sediments

Creator:: Wang, Yunzhu
Abstract:: The transport and deposition of airborne contaminants, including semivolatile organic compounds (SOCs), to high elevation ecosystems is recognized as a potential threat to these ecosystems. The objectives of this research were to develop an analytical method to measure a wide range of SOCs in high elevation lake sediment and to...
Resource Type:: Masters Thesis
Full Text:: electrical equipment because they are thermal stable and are were good insulators [18]. The manufacture of

Fluorinated and deuterated surrogates for quantifying microbial transformation of chlorinated ethenes and ethanes in anaerobic groundwater

Creator:: Ennis, Elliot G.
Abstract:: Chlorinated aliphatic hydrocarbons (CAHs) such as vinyl chloride (VC) and 1,-2 dichioroethane (DCA), are wide-spread groundwater pollutants found at many contaminated field sites around the world. Quantitative tools are needed to determine the in situ rates of VC and DCA transformation to ethene in contaminated groundwater. The objective of this...
Resource Type:: Masters Thesis
Full Text:: incomplete degradation of chlorinated solvents such as trichloroethene (TCE) and perchloroethene (PCE) (1,6

Improvements in synthesis and response techniques of ion-selective sensors

Creator:: Pylypiuk, Nataliia
Abstract:: Two improvements to the established procedures for synthesis and response detection of ion-selective optical sensors (optodes) were introduced. The first improvement addresses the drawback of organic dye (optode-localized chromoionophore) photobleaching. This positively impacts fluorescence response and allows for (1) direct measurement of hydrogen ion activity upon binding with the dye,...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Nataliia Pylypiuk for the degree of

Novel ternary graphite intercalation compounds of alkali metal cations and amines

Creator:: Maluangont, Tosapol
Abstract:: Novel ternary graphite intercalation compounds (GICs) of alkali metal cations and a wide variety of amines have been synthesized by one-pot chemical syntheses. Alkali metals studied includes Li, Na and K. The families of amines employed are nalkylamines, branched alkylamines, and different structural isomers of diamines and polyamines. Intragallery structures...
Resource Type:: Dissertation
Full Text:: observed in the slow degradation of GICs prepared by ternarization of KC8 or KC24 with liquid THF. 41

Deposition and characterization of transition metal oxides from aqueous solution

Creator:: Betterton, Sharon A.
Abstract:: The aqueous chemistries of two transition metal cations, Zr⁴⁺ and Nb⁵⁺, are examined and then used to develop inorganic precursor solutions. The oxides of these cations (ZrO₂ and Nb₂O₅) are deposited and characterized, and their morphological and optical properties discussed. Due to the obstacles created by niobium's aqueous chemistry, an...
Resource Type:: Masters Thesis
Full Text:: foundation and sources of unconditional love; Derek Rycewicz, who helped me find my inner strength; Olivia

Detection techniques for biomolecules using semi-conductor nanocrystals and magnetic beads as labels

Creator:: Chatterjee, Esha
Abstract:: Continued interest in the development of miniaturized and portable analytical platforms necessitates the exploration of sensitive methods for the detection of trace analytes. Nanomaterials, on account of their unique physical and chemical properties, are not only able to overcome many limitations of traditional detection reagents but also enable the exploration...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Esha Chatterjee for the degree of Doctor of Philosophy in Chemistry

The chemistry and device applications of amorphous thin-film interfaces

Creator:: Knutson, Christopher C.
Abstract:: Solid-state amorphous materials show amazing promise in thin-film electronics. The interface-to-bulk ratio of thin films makes interfacial chemistries of these systems of utmost importance. Thin films of amorphous metals, dielectrics and semiconductors have novel chemistries that are not only based upon their elemental constituent makeup, but also based upon the...
Resource Type:: Dissertation
Full Text:: immediately followed by one minute of thermal treatment at 300 ˚C on a hotplate open to air. 15

Polymeric submicron optical ion-selective sensors

Creator:: Bychkova, Valeriya
Abstract:: Ion-selective polymeric optical sensors – ion optodes – are a promising alternative to ion-selective electrodes and fluorescent dyes for analytical and biological applications, e.g. extra- and intracellular measurements. They are non-toxic, highly selective robust probes for ionic fluxes monitoring. A large-scale fabrication of ion optodes using a solvent displacement method...
Resource Type:: Dissertation
Full Text:: high tensile strength, chemical inertness and compatibility with a wide range of plasticizers

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