Index Catalog // ScholarsArchive@OSU

UV-assisted lipoic acid ligand exchange of copper indium disulfide-zinc sulfide core-shell quantum dots

Creator:: Porth, Lane D.
Abstract:: Water-soluble quantum dots obtained through ligand exchange are widely applicable for biological imaging and marking, LEDs, and photovoltaics. Lipoic acid (LA) was reduced to dihydrolipoic acid (DHLA) using 365-nm soft UV light in a process known as photoligation, and ligand exchange with dodecanethiol-capped CuInS₂-ZnS core-shell quantum dots occurred. The reaction...
Resource Type:: Honors College Thesis

Ultraviolet photolysis of acetaminophen in a 3D printed continuous flow reactor

Creator:: Goetze, John M.
Abstract:: Finding renewable sources of agricultural fertilizer will be necessary to ensure a stable food supply for future generations. Phosphorus is of particular concern, since mining phosphate rock is the main source and reserves are forecasted to deplete in the next 50 – 200 years. Human urine contains substantial amounts of...
Resource Type:: Honors College Thesis

Toward Professional Practice: Student Learning through Participation in Engineering Clubs

Creator:: Hinkle, Christopher M.
Abstract:: This study investigated learning in three engineering student clubs at a large public university. This included a small-sized chemical reaction car competition, a large-sized formula racing team, and an international humanitarian engineering club. Research methods included observations of work sessions (N=27) and semi-structured interviews (N=19). Using Cultural Historical Activity Theory...
Resource Type:: Honors College Thesis

The Stability, Toxicity, and Reactivity of Zero Valent Iron Nanoparticles

Creator:: Bulovsky, Hannah G.
Abstract:: Zero valent iron nanoparticles effectively remediate groundwater contaminants due to their catalytic properties and enhanced surface area. However, these properties contribute to particle agglomeration, decreasing their effectiveness. In this study, we examined the effect of two stabilizing agents (gum arabic (GA) and sodium carboxymethyl cellulose (CMC)) on particle stability, toxicity,...
Resource Type:: Honors College Thesis

The Effects of Temperature and Working Electrode Material on the Power Output of a Hydroxymethylfurfural Fuel Cell

Creator:: Breen, Joshua P.
Abstract:: The need for clean energy continues to rise as the earth’s non-renewable resources continue to be depleted to satisfy energy demands. One plausible renewable energy source exists in biomass-powered fuel cells.¹ While there are several ways to convert sugars to energy, one interesting approach is to convert the sugars to...
Resource Type:: Honors College Thesis

The Effect of HSA and Hematocrit on the Cake Collapse Temperature of Lyophilized Red Blood Cells

Creator:: Runyon, Daniel E.
Abstract:: Freeze-drying, or lyophilization, has shown great promise in addressing many of the logistical challenges of storing and preserving red blood cells (RBCs). A crucial part of any future RBC lyophilization protocol is the primary drying temperature, which affects the sample drying rate and the dried cake’s ability to form a...
Resource Type:: Honors College Thesis

The Development and Implementation of Interactive Virtual Laboratories

Creator:: Bowen, Alec S.
Abstract:: The Interactive Virtual Laboratories (IVLs) are a series of two-dimensional simulations designed to help students conceptually learn difficult concepts in thermodynamics. Three studies were performed to help elucidate how the IVLs affect student learning. In the first study, eight students were observed while completing one of the IVLs. The students...
Resource Type:: Honors College Thesis

The Design of SWEsters Mentorship Program for First-Year Engineering Student Success

Creator:: Thompson, Tatiana A.
Abstract:: In order to support first-year women in engineering, a program was designed to help their transition to college and promote connection with other women. The program focused on three main areas based in research: mentor matching with mentee input, regular formal meetings in small mentoring groups, and the formation of...
Resource Type:: Honors College Thesis

The art of medicine in practice: A look at how exceptional physician-patient relationships are formed in healthcare today

Creator:: Castaneda, Jason
Abstract:: The art of medicine refers to physicians’ abilities to skillfully navigate interpersonal interactions with patients. These interactions are vital to the formation of exceptional physician-patient relationships. Certain elements of healthcare today such as the advancement of diagnostic tests, the emergence of the electronic medical record, and the presence of market...
Resource Type:: Honors College Thesis

The 2010 Deepwater Horizon Gulf Region Oil Spill: Educational Modules and Methods for Long-Term Remediation

Creator:: Oldenkamp, Audrey G.
Abstract:: On April 20th, 2010 the Deepwater Horizon drilling rig in the Gulf of Mexico malfunctioned leading to a 4.9 million barrel oil spill. The released oil affected marine life, coastal ecosystems, and the economic framework of the Gulf of Mexico. The Gulf spill spurred research on absorbent materials and engineering...
Resource Type:: Honors College Thesis

Synthesis of gold nanoparticle surfactants and their self-assembly at oil-water interfaces

Creator:: Truong, Mitchell
Abstract:: Amphiphilic gold nanoparticle surfactants can self-assemble at oil-water interfaces to form stable Pickering emulsions. These nanoparticle surfactants have previously been synthesized by functionalizing gold nanoparticles with thiol terminated polyethylene glycol (PEG-thiol), and subsequently with an alkane-thiol. It is necessary to improve the bio-compatibility of the nanoparticles if they are to...
Resource Type:: Honors College Thesis

Synthesis and Characterization of Biodegradable, Photocuring Elastomers for Soft Robotics Applications

Creator:: Rueben, Jacob K.
Abstract:: Abstract has been suppressed at the request of the author.
Resource Type:: Honors College Thesis

Sustainable US Federal Water Policy Recommendations

Creator:: Kusanto, Nicholas Christopher
Abstract:: Climate change, population growth, aging infrastructure, poor water management, and aquifer depletion are reducing US water supply. Increasing water scarcity will lead to an inability to support agriculture, industry, energy, and municipal demand that will negatively affect US economic growth and national security. Traditional water policy measures of expanding supply...
Resource Type:: Honors College Thesis

Surface Structure Sensitivity to Fuel Adsorption on Pt(111) and Pt(100) and Carbon-Oxygen Bond Breakage at the Anode of a Direct Dimethyl Ether Fuel Cell

Creator:: Schneider-Coppolino, Merissa
Abstract:: As conventional energy sources begin to deplete, the need for alternative, renewable energy becomes more necessary. Dimethyl ether (DME) fuel cells are a promising energy source that could fulfill these demands. Compared to well-known fuel cell fuels, such as methanol, DME has a low toxicity and high energy density. Experimental...
Resource Type:: Honors College Thesis

Surface composition age analysis of photo-oxidized polystyrene thin films by X-ray photoelectron spectroscopy

Creator:: Silva, Nicholas A.
Abstract:: Polystyrene thin film surfaces are commonly used to study the interactions of macromolecules, such as proteins, with surfaces. Polystyrene films oxidized in UV light become more hydrophilic, however these surfaces have a limited shelf life because they are reduced over time. Experiments were performed to determine the effect of radiation...
Resource Type:: Honors College Thesis

Solvent and Dispersion Effects on the Hydrodeoxygenation of Acetic Acid on a Pd(111) Model Surface

Creator:: Rebarchik, Michael A.
Abstract:: Increased dependence on fossil fuels and concerns of anthropogenic climate change have led to increased interest in alternative energy sources. Liquid fuels derived from renewable raw materials have gained attention in recent years due to their similarity to petroleum-based fuels. Biofuels derived through hydrodeoxygenation have been found to be one...
Resource Type:: Honors College Thesis

Solvation Effects of Water on Dimethyl Ether Interactions with a Platinum Catalyst

Creator:: Chang, Alvin
Abstract:: Our society today is heavily dependent on fossil fuels such as coal and oil. However, growing environmental concerns and future fossil fuel supplies have led to interests in alternative fuels. Dimethyl Ether (DME) is an inexpensive, clean-burning, non-toxic, and potentially renewable fuel, making it a suitable choice as an alternative...
Resource Type:: Honors College Thesis

Second Derivative Excitation Emission Resolution (SEC DEER) Spectroscopy

Creator:: Rosene, Benjamin L.
Abstract:: Fluorescence spectroscopy is a powerful analytical technique due to bright signals that provide excellent measurement sensitivity. Many colors of fluorescent dyes are available to match the detection ranges of different equipments. Dyes can be chemically modified to bind to many different target analytes with high specificity1. Alternatively, sensors can be...
Resource Type:: Honors College Thesis

Restoring and Updating the Micralyne μTK

Creator:: Wong, Derek H.
Abstract:: The Micralyne microfluidic toolkit (μTK) was an instrument built by Micralyne in the early 2000’s. It was built for electrophoresis and has a sensitive laser-induced fluorescence detection system. The updates to the system were upgrading the control GUI from running in LabVIEW 5 (Windows XP, 2000) to LabVIEW 2012 (Windows...
Resource Type:: Honors College Thesis

Removing Chemical Oxygen Demand (COD) Assay Interference from Landfill Leachate Samples Treated with Fenton's Reagents

Creator:: Palmer, Matthew
Abstract:: Incompatibility between Fenton’s Reagents and a potassium dichromate COD test provides interference that prevent accurate measurements of the concentration of organics from oxidized samples. Several treatment options were tested to remove this interference. Oxidation of reagents was eliminated as a potential method for removal of interference due to sample contamination....
Resource Type:: Honors College Thesis

Reactive Phase Change Materials for Enhanced Thermal Energy Storage

Creator:: Drake, Griffin S.
Abstract:: Effective storage and release of low-to-moderate temperature thermal energy (e.g. solar thermal or geothermal) could be transformational for applications such as space heating/cooling, domestic hot water, or off-grid cooking. Good candidates for thermal energy storage in this temperature range include latent heat storage (LHS) systems and thermochemical energy storage (TCES)...
Resource Type:: Honors College Thesis

Protection of Nitrosomonas europaea from Silver Nanoparticle-Induced Inhibition through a Two-Step, Magnesium-Facilitated Mechanism

Creator:: Anderson, Joseph W.
Abstract:: The inhibitory effects of (Ag⁺) and silver nanoparticles (Ag NP) 3-5 nm in diameter (stabilized with polyvinylpyrrolidone (PVP)) and 20 nm (stabilized with citrate) on nitrification rates of the model ammonia-oxidizing bacteria (AOB) Nitrosomonas europaea were investigated. Experimental solutions contained HEPES buffer and ammonia (NH₃) in the presence and absence...
Resource Type:: Honors College Thesis

Photoluminescence Detection of 2,4,6-Trinitrotoulene (TNT) Binding on Single Cell Diatom Biosilica

Creator:: Harms, Nathan D.
Abstract:: T. pseudonana biosilica and live cells was explored as a biosensor for detection of the explosive compound 2,4,6-trinitrotoluene (TNT) in aqueous solution. The diatom frustule is an intricately nanostructured, highly porous biogenic silica material derived from the shells of microscopic algae called diatoms. This material emits strong visible blue photoluminescence...
Resource Type:: Honors College Thesis

Photocatalytic Treatment of Stormwater Runoff using Puralytics LilyPad

Creator:: Laurance, Jon
Abstract:: Stormwater picks up pollutants as it flows over impervious surfaces before ending up in water resources. Best management practices are implemented to remove pollutants from stormwater. Puralytics manufactures a stormwater treatment product called the LilyPad. The LilyPad consists of a titanium dioxide nanoparticle photocatalyst immobilized on polypropylene substrate. Treatment of...
Resource Type:: Honors College Thesis

Photoactuated Droplet Microfluidics

Creator:: Frederick, Ryan T.
Abstract:: A system of Photoactuated Droplet Microfluidics (PDM), in which a droplet of fluid is moved by way of the manipulation of the wettability of a spiropyran functionalized surface via irradiation with ultraviolet and visible light, was proposed. The photochromic behaviors of several species of spiropyran were studied and a procedure...
Resource Type:: Honors College Thesis

Optimizing Methods to Assess Nanoparticle Biodistribution in Embryonic Zebrafish

Creator:: Pfarr, Shaylin H.
Abstract:: As nanoparticle (NP) research and development expands, the significance of NP biodistribution effects on toxicity increases. A reliable method for measuring NP biodistribution is critical. Hyperspectral Imaging (HSI) is capable of accurately quantitating NP biodistribution within embryonic zebrafish with incredibly high precision. Before HSI processing, the embryo must be sectioned...
Resource Type:: Honors College Thesis

Optimization of Schizochytrium limacinum SR21 Growth using Different Carbon Sources and Copper Concentrations

Creator:: Soo, Steven W.
Abstract:: The purpose of this project was to optimize the biomass growth of Schizochytrium limacinum SR21. This was achieved by studying the effect of various concentrations of glucose, use of pure glycerol and purified crude glycerol as alternative carbon sources, and inhibition of cell growth with the presence of copper. The...
Resource Type:: Honors College Thesis

Optimization of Schizochytrium limacinum SR21 Growth using Different Carbon Sources and Copper Concentrations

Creator:: Soo, Steven W.
Abstract:: The purpose of this project was to optimize the biomass growth of Schizochytrium limacinum SR21. This was achieved by studying the effect of various concentrations of glucose, use of pure glycerol and purified crude glycerol as alternative carbon sources, and inhibition of cell growth with the presence of copper. The...
Resource Type:: Honors College Thesis

Nanomechanical Characterization of Atomic Layer Deposition Coatings for Biomedical Applications

Creator:: Bauer, Nicole Lea
Abstract:: Atomic Layer Deposition (ALD) is a promising technique for the production of biologically safe, wear resistant and corrosion protective coatings for orthopedic applications. In this work, the impact of coating thickness and surface preparation on the hardness (H), elastic modulus (E), wear resistance, and delamination of ALD Al2O3 films is...
Resource Type:: Honors College Thesis

Molecular Origins of Recombinant Factor VIII (rFVIII)

Creator:: Tadehara, Katherine M.
Abstract:: The capability of Pluronic® F68 to stabilize human recombinant Factor VIII in solution was assessed using zeta potential measurements. Hemophilia A is a genetic disorder in which the body is missing Factor VIII (FVIII) from the blood coagulation cascade. The pharmaceutical industry developed recombinant Factor VIII (rFVIII), the largest cloned...
Resource Type:: Honors College Thesis

Microwave-Assisted Synthesis and Chemical Modulation of MOF-74(Ni)

Creator:: Aldossary, Abdulrahman N.
Abstract:: Metal-organic frameworks (MOFs) are crystalline porous material distinguished for high free empty volume and pore tunability. MOF-74(Ni) was previously shown to be effective in adsorbing carbon dioxide, methane, and hydrogen. Microwave-assisted synthesis of MOF-74(Ni) was shown to lower reaction time from days to hours. In this thesis, experimental conditions of...
Resource Type:: Honors College Thesis

Lead(II) Extraction with Electrospun Spiropyran Functionalized PMMA Nanofibers

Creator:: Fuchs, Brian K.
Abstract:: A system to reversibly extract Pb²⁺ ions from aqueous solutions using spiropyran functionalized nanofibers was proposed. Spiropyrans are photochromic compounds which undergo a conformational change that alters their physical properties and makes Pb²⁺ binding possible upon irradiation with UV light (365 nm). Irradiation with green light (525 nm) reverses this...
Resource Type:: Honors College Thesis

Langmuir-Pockels Trough with Double Wall Couette for Measuring Interfacial Rheology of Insoluble Surfactants

Creator:: Turner, Christine
Abstract:: Insoluble surfactants are unique molecules that have the ability to manipulate interfacial properties, becoming useful in numerous applications such as detergents, wetting agents, emulsifiers, foaming agents, dispersants, and more. Interfacial rheology is a field that attempts to characterize the flow properties of insoluble surfactants by exerting a stress on the...
Resource Type:: Honors College Thesis

Investigation of Magnesium Dioxybenzenedicarboxylate (Mg-DOBDC) Thin-film Deposition onto Modified Glass Substrates

Creator:: Haning, Evan J.
Abstract:: Metal-Organic Frameworks (MOFs) are crystalline compounds formed from reacting a metal ion with an organic ligand. They represent a promising new avenue in materials science for gas separations and storage. Certain MOFs, in particular Mg-MOF-74, have shown a strong affinity for the capture of CO2. This project investigated a known...
Resource Type:: Honors College Thesis

Investigate Novel Inkjet Printing of High Performance Silica-based Nanostructured Anti-Reflection Coatings

Creator:: Holzgang, Harrison Robert
Abstract:: Anti-reflective coatings are applied to substrates to increase the transmittance of light in the visible range of wavelength 400 – 800 nm through the substrate by changing the refractive index at the surface and directing more light through the substrate rather than being reflected away. This project investigated the possibility...
Resource Type:: Honors College Thesis

Interface Analysis of Titanium Dioxide and Graphene

Creator:: Frazier, Devon Paige
Abstract:: Titanium dioxide, in the anatase form, is a photocatalyst and has applications in water pollution reduction. Efficiency can be improved with a graphene substrate, which delays electron-hole recombination and may reduce the band gap. In this work, we determine if graphene can also act as a morphactant, changing the shape...
Resource Type:: Honors College Thesis

Influence of Corexit 9500A and Alaska North Slope Crude oil toxicity to the ammonia-oxidizing bacteria, Nitrosomonas europaea, and the ammonia-oxidizing archaea, Nitrosopumilus maritimus

Creator:: Schneider, Margaret C.
Abstract:: The inhibitory effects of Corexit 9500A, Alaska North Slope Crude oil (ANSC), and mixtures of the two on the ammonia-oxidizing bacteria, Nitrosomonas europaea, and the ammonia-oxidizing archaea, Nitrosopumilus maritimus, were investigated. Corexit 9500A was found to be minimally toxic to both microorganisms with concentrations of 2000 and 3000 ppm yielding...
Resource Type:: Honors College Thesis

Incorporation of polymorphic spacers to inhibit sintering of SrO/SrCO3 for thermochemical energy storage

Creator:: Tran, Justin T
Abstract:: Global energy needs are continuously increasing while fossil fuels remain an uncertain resource. With a growing population and demand for energy, alternative energy sources are being pursued to power the future. Fossil fuels are an unsustainable resource that brings along problems of climate change and atmospheric pollution. Concentrated solar power...
Resource Type:: Honors College Thesis

Improving the sensitivity in a paper-based Test for the home monitoring of phenylalanine levels in phenylketonuria patients

Creator:: Wong, Liam
Abstract:: Monitoring phenylalanine (Phe) levels in the blood of individuals with phenylketonuria (PKU) is a critical component of therapy. Existing tests for PKU require high-resource laboratories, which are not available to many populations and cannot provide the real-time feedback required for effective therapy monitoring. It would be ideal to develop an...
Resource Type:: Honors College Thesis

I-V Characteristics of Al/HfO2/TaN RRAM Devices

Creator:: Valdivia, Arturo H.
Abstract:: The memristor is a resistive switching random access memory (RRAM) with a basic metal/insulator/metal (MIM) structure. These nano devices are nonvolatile, have a conceptually simple crossbar device structure, are power efficient and have the capability of switching between high and low resistance states in nanoseconds making them promising to replace...
Resource Type:: Honors College Thesis

Hydrogen Interaction with Platinum and Palladium Surfaces

Creator:: Boechler, Amanda N.
Abstract:: Platinum and palladium surfaces are utilized as catalytic surfaces in the chemical industry. Understanding how hydrogen atoms interact with the metal surfaces will allow for further advancement in this area. Specifically, the interaction of hydrogen on the surface and subsurface of these metals was investigated using density functional theory calculations...
Resource Type:: Honors College Thesis

History of Social Dancing at Oregon State University

Creator:: Weymann, Davis
Abstract:: This paper presents a brief history of social dance at Oregon State University (OSU) and discusses its key elements and context. Social dance has been part of campus life at OSU since the university was founded. Initially, dance was a social activity and means to interact with others, but as...
Resource Type:: Honors College Thesis

Genotyping and Admixture Mapping of North American Fragaria chiloensis Populations

Creator:: Devin, Jennifer N.
Abstract:: Assembly and genotyping of polyploid genomes poses many problems due to the complex nature of polyploid data, including the inability to determine allelic dosage and mixed inheritance patterns. This study was the first application of POLiMAPS genotyping on whole genome sequences without using cross information. In this study, whole genome...
Resource Type:: Honors College Thesis

Functionalization of Poly(3-hexylthiophene-2,5-diyl) for Nanoelectromechanical Devices

Creator:: McConnell, Chelsea A.
Abstract:: Innovative nanoelectromechanical switches (NEMS) have the prospects to reduce device actuation voltages as compared to traditional semiconductor devices. Current research on NEMS seeks to avoid irreversible adhesion at the nanoscopic level, which results in device failure. Minimizing leakage currents and increasing device longevity are additional goals of this approach. The...
Resource Type:: Honors College Thesis

Environmental Transformations of Nanoparticles in Natural Water Systems using a Hydrophobic and Hydrophilic Dye Assay

Creator:: Turnquist, Macklin C.
Abstract:: Nanoparticles (NPs) are generally defined as particles <100 nanometers (nm) in size in one dimension. Despite increasing industrial usage of TiO2 NPs in sunscreens, cosmetics, and water remediation little is known of their environmental behavior. The primary goal of this research was to develop a rapid method for determining the...
Resource Type:: Honors College Thesis

Effects of rMnP on Yeast Growth Inhibitors Generated During the Pretreatment of Lignocellulosic Biomass

Creator:: Varin, Sara M.
Abstract:: The purpose of this study is to investigate the use of recombinant lignin degrading enzyme, maganese peroxidise (rMnP), to detoxify inhibitors for theoptimization of ethanol production from lignocellulosic biomass. The negative effects of inhibitors: vanillin, furfural, hydroxymethylfurfural, and syringaldehyde on Saccharomyces cerevisiae and Pichia pastoris yeast cell growth in revealed...
Resource Type:: Honors College Thesis

Effectiveness of Safety Culture Survey in Evaluating the Overall Safety Performance of an Organization : A Case Study

Creator:: Miller, Natalie H.
Abstract:: Safety culture is a vital part of any organization. It describes how employees, on all levels, perceive safety at the particular organization. Measuring safety culture is fundamental to determining the environment of the organization. Using different measurement methods, including surveys, changes can be made to increase safety and improve safety...
Resource Type:: Honors College Thesis

Dynamic Surface Tension on the Microsecond Timescale : Thermal Inkjet Printing Applications

Creator:: Wilson, Madeline
Abstract:: This project explores the relationship between microsecond-timescale dynamic surface tension (DST) and measurable thermal inkjet printing parameters. Dynamic surface tension affects many aspects of printing, including printing speed and ink drop shape. In addition to this, DST is a physical input parameter for HP’s in-house computational fluid dynamics program. HP...
Resource Type:: Honors College Thesis

Development of a Smartphone App to Easily Measure Extensional Viscosity

Creator:: Swift, Aleesha M.
Abstract:: The measurement of extensional viscosity is important in many chemical, biomedical, agricultural, and engineering applications. The determination of extensional viscosity is generally difficult, expensive, and inaccessible outside of research labs. The development of a smartphone application (app) that could use a phone’s high-speed camera to measure this parameter could open...
Resource Type:: Honors College Thesis

Design of a Green Microbial Fuel Cell for Soft Robotics

Creator:: Van Volkenburg, Tessa
Abstract:: This work introduces the design and fabrication of a green-sourced and mostly biodegradable microbial fuel cell for use in soft robotic applications from environmental sensing to wastewater remediation. Theorized from other biodegradable fuel cells, this prototype achieved maximum power densities of 4.0 x 10−4 W/m2 in the single-chambered design and...
Resource Type:: Honors College Thesis

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