Index Catalog // ScholarsArchive@OSU

Addressing the Risks of Nanoscale Polymers: Exposure, Behavior, and Toxicity

Creator:: Stine, Jared
Abstract:: Nanoscale polymers (including nanoplastics) are widely present through commerce and make their way into the environment. As the improper disposal of plastic waste leads to continued accumulation and degradation of plastic pollution, the presence of plastic particles less than 1 micron (μm) in size (nanoplastics) will increase. Heightened concern over...
Resource Type:: Dissertation
Full Text:: approved: ______________________________________________________ Stacey L. Harper Nanoscale

Biomolecule detection by amplified photoluminescence of germanium doped diatom biosilica

Creator:: Gale, Debra K.
Abstract:: There is significant interest in the fabrication of nano- and micro-structured silica with spatially ordered features, which exhibit enhanced optoelectronic properties with application to the next generation of display devices, semiconductors, and sensors. Currents methods of fabrication employ top down processes which use extremes of temperature, pressure, and power. There...
Resource Type:: Dissertation
Full Text:: Gregory L. Rorrer There is significant interest in the fabrication of nano- and micro-structured

Studies on effect of stabilizers, chelators and inherent periodicity on nanoparticle antioxidant activity

Creator:: Zhou, Zheng
Abstract:: The level of reactive oxygen species (ROS) is tightly regulated in biological systems as overproduction can lead to oxidative stress and result in a number of diseases. Due to its negative effects, antioxidants are studied and used against ROS in medicine, pharmaceuticals and therapeutics. Because of issues with the uptake...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Stacey L. Harper The

Molecular origins of peptide entrapment in polyethylene oxide layers

Creator:: Wu, Xiangming
Abstract:: A more quantitative understanding of peptide entrapment and elution from otherwise protein-repellent polyethylene oxide (PEO) brush layers will provide direction for development of new strategies for drug storage and delivery. Here we describe criteria for peptide integration and structural change within the PEO brush, and discuss the reversibility of peptide...
Resource Type:: Dissertation
Full Text:: peptide S-WLBU2, and the non-amphiphilic homopolymer poly-L-arginine (PLR). Circular dichroism (CD) was

Saturation, morphology, and topology of nonwetting phase fluid in bentheimer sandstone; application to geologic sequestration of supercritical CO2

Creator:: Herring, Anna L.
Abstract:: This work examines the impact of a viscosity force parameter, fluid velocity, and a capillary force parameter, interfacial tension, on the saturation, morphology, and topology of NW fluid in Bentheimer sandstone after primary imbibition, drainage, and secondary imbibition. Brine and air (used as a proxy for supercritical CO₂) flow experiments...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Anna L. Herring for the degree of Master of Science in Chemical

An investigation into the pore-scale mechanisms of capillary trapping : application to geologic CO₂ sequestration

Creator:: Herring, Anna L.
Abstract:: Geologic CO₂ sequestration is a climate change mitigation strategy that prevents CO₂ emissions to the atmosphere by capturing CO₂ gasses from large point source emissions streams and then pressurizing and pumping the supercritical-state CO₂ into underground geologic storage reservoirs. Once underground, CO₂ is prevented from buoyant migration to the surface...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Anna L. Herring for the degree of Doctor of Philosophy in Environmental Engineering

Synthesis, surface treatment, and characterization of copper indium sulfide quantum dots

Creator:: Alemu, Yagenetfere A.
Abstract:: The need for less toxic quantum dots (QDs) has led to a significant number of investigations related to copper indium sulfide (CIS) QDs. Lower toxicity and broad band absorbance width makes CIS QDs appealing for light emitting diodes (LEDs), lasers, sensors, bio-imaging, solar cells, and computing. The optical and electronic...
Resource Type:: Masters Thesis

Eco-corona formation and impact on environmentally relevant micro- and nanoplastics

Creator:: McColley, Campbell J.
Abstract:: Microplastics (MPs) are plastic particles less than 5 mm in diameter. These contaminants are increasingly found in the environment due to increased plastic production, use, and improper disposal. Detecting and measuring these contaminants in the environment has proven difficult, requiring the use of fate and transport models to assess MP...
Resource Type:: Dissertation
Full Text:: 4.2 Mass fraction of 100 μg/L a) copper and b) zinc adsorbed on aged and unaged PS

Spherical Au Nanoparticle Interaction with Lipid Monolayers Probed with Sum Frequency Generation Spectroscopy

Creator:: Faase, Ryan A.
Abstract:: Nanoparticles have become more prevalent from their use in sunscreen to antimicrobial agents in socks. In light of these applications, gaining a fundamental understanding of how NPs interact with humans is crucial for their future. Specifically, how cells interact with NPs and what factors drive the modes of cellular uptake....
Resource Type:: Masters Thesis
Full Text:: concentrations ≥ 20 mg/L in contrast to the 10 and 20nm AuNPs which showed no significant mortality in the

Classifying the toxicity of pesticides to honey bees via support vector machines with random walk graph kernels

Creator:: Yang, Ping
Abstract:: Pesticides benefit agriculture by increasing crop yield, quality, and security. However, pesticides may inadvertently harm bees, which are valuable as pollinators. Thus, candidate pesticides in development pipelines must be assessed for toxicity to bees. Leveraging a data set of 382 molecules with toxicity labels from honey bee exposure experiments, we...
Resource Type:: Masters Thesis
Full Text:: pesticide molecules: (i) a random walk feature vector listing counts of length-L walks on the molecular

ScholarsArchive@OSU

Addressing the Risks of Nanoscale Polymers: Exposure, Behavior, and Toxicity

Biomolecule detection by amplified photoluminescence of germanium doped diatom biosilica

Studies on effect of stabilizers, chelators and inherent periodicity on nanoparticle antioxidant activity

Molecular origins of peptide entrapment in polyethylene oxide layers

Saturation, morphology, and topology of nonwetting phase fluid in bentheimer sandstone; application to geologic sequestration of supercritical CO2

An investigation into the pore-scale mechanisms of capillary trapping : application to geologic CO₂ sequestration

Synthesis, surface treatment, and characterization of copper indium sulfide quantum dots

Eco-corona formation and impact on environmentally relevant micro- and nanoplastics

Spherical Au Nanoparticle Interaction with Lipid Monolayers Probed with Sum Frequency Generation Spectroscopy

Classifying the toxicity of pesticides to honey bees via support vector machines with random walk graph kernels

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Location

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search