Index Catalog // ScholarsArchive@OSU

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:: DISSERTATION OF Carlos F. Gonzalez for the degree of Doctor of Philosophy in Chemistry presented on

Hydrogen abstraction from substituted t-butylbenzenes

Creator:: Harvey, Robert Louis
Abstract:: A study of the relative rates of the alkyl hydrogen abstraction from a series of meta and para substituted t-butylbenzenes by the chlorine atom at 70°C has been carried out. Application of the Hammett equation yielded a ρ value of -0.44 for the para compounds. Possible explanations for the non-linearity...
Resource Type:: Masters Thesis
Full Text:: the para compound. Sulfuryl chloride and 2- iodo -t- butylbenzene reacted to give a purple -brown

Elucidating the Origins of Trends and Selectivities of Organic Reactions through Computations and Data Analysis Techniques

Creator:: Richardson, H. Camille
Abstract:: In this dissertation, a novel method for analyzing computed transition states (TS) for organic reactions is disclosed. It introduces the use of localization-delocalization matrices as parameters in a linear free energy relationship to determine the transition state interactions responsible for differences in energy between the major and minor TS in...
Resource Type:: Dissertation
Full Text:: endeavor, Dr. Kevin Brown and Dr. Ron Cook. Without their knowledge and expertise to guide me this would

The identification and quantitation of complex polycyclic aromatic hydrocarbon mixtures in environmental samples using comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry

Creator:: Manzano, Carlos A.
Abstract:: Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous contaminants and are mostly products of the incomplete combustion of organic material. PAHs are often found in environmental samples as a complex mixture of isomers. In addition, the same sources that produce complex PAH mixtures also produce other poorly characterized mixtures of organic compounds,...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Carlos A. Manzano for the degree of Doctor of Philosophy in Chemistry

The photodecomposition of t-butyl bicyclo [7.1.0] decane-2-percarboxylate

Creator:: McRitchie, Donna Louise
Abstract:: This paper describes the synthesis of t-butyl bicyclo[7.1.0] decane-2-percarboxylate and its photolytic decomposition. The title compound was found to undergo simple homolytic cleavage when exposed to light of 2537 A; producing the cyclodecyl radical, carbon dioxide, and t-butoxy radical. The largest percentage of products arose from an intimate radical pair...
Resource Type:: Masters Thesis
Full Text:: department) (Date) Title: The Photodecomposition of t-butyl Bicyclo[7.1.0]decane-2- percarboxylate

New Inorganic Pigments from Mineral Structures

Creator:: Schettini Mejia, Carlo A.
Abstract:: The discovery of new blue pigments is a field of great interest, as commercially available pigments present properties that make them undesirable such as poor sustainability, cost, and stability. By researching solid solutions with the melilite structure, we discovered a new solid solution Sr2Zn1-xNixGe2O7, with 0.1 ≤ x ≤ 0.6,...
Resource Type:: Honors College Thesis
Full Text:: Carlo A. Schettini Mejia A THESIS submitted to Oregon State

Rhenium-catalyzed oxygen-atom transfer reactions : mechanism and applications

Creator:: Brown, Eric C.
Abstract:: In situ reduction of hydrido-tris-(3,5-dimethylpyrazolyl)borato(trioxo) rhenium(V) with triphenylphosphine or triethylphosphite leads to a reactive rhenium(V) species that catalytically deoxygenates epoxides at 75-105°C. The reaction is stereospecific, except for trans- and cis-butene oxide which formed minor amounts of the opposite isomer. A variety of different functional groups were tolerated and even...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Eric C. Brown for the degree

Organic-solvent resistant ultrafiltration and nanofiltration membrane modules for separation and purification of nanoparticles

Creator:: Kim, Taehyeong
Abstract:: The intriguing size- and shape dependent properties of nanoparticles have garnered recent attention in many science and engineering areas. When the particle size is in the nanometer size range, the material exhibits very different properties such as surface plasmon resonance (of gold nanoparticles) and superparamagnetism (of iron oxide nanoparticles). The...
Resource Type:: Dissertation
Full Text:: Vincent T. Remcho The intriguing size- and shape dependent properties of nanoparticles have garnered

Monolithic sorbents for microscale separations

Creator:: Doneanu, Angela
Abstract:: Over the last decade, the miniaturization of analytical systems has become an increasingly important and interesting research area. Miniaturized systems offer many advantages, including reduced reagent and sample consumption, shorter analysis times, portability and disposability. This dissertation describes novel approaches in this direction, focusing on two areas: the miniaturization of...
Resource Type:: Dissertation
Full Text:: of this research: Gabriela Chirica, Patrick Vallano, Stacey Clark, Carlos Gonzalez, Jack Rundel

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:: : __________________________________________________________________ Vincent T. Remcho The development of microfluidic devices for heavy metal extraction is

ScholarsArchive@OSU

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

Hydrogen abstraction from substituted t-butylbenzenes

Elucidating the Origins of Trends and Selectivities of Organic Reactions through Computations and Data Analysis Techniques

The identification and quantitation of complex polycyclic aromatic hydrocarbon mixtures in environmental samples using comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry

The photodecomposition of t-butyl bicyclo [7.1.0] decane-2-percarboxylate

New Inorganic Pigments from Mineral Structures

Rhenium-catalyzed oxygen-atom transfer reactions : mechanism and applications

Organic-solvent resistant ultrafiltration and nanofiltration membrane modules for separation and purification of nanoparticles

Monolithic sorbents for microscale separations

A photoactivable microfluidic device for heavy metal ion extraction

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