Index Catalog // ScholarsArchive@OSU

Chronic Toxicological Effects in Daphnia magna from Exposure to PMMA Nanoplastics

Creator:: Brown, Hans
Abstract:: Plastic pollution is an ever-increasing environmental threat. As large-scale plastics break down to form nanoscale plastics, it is essential to investigate their effects on freshwater ecosystems. With many plastic nanoparticle (NP) studies favoring the effects of common polystyrene (PS) plastics, a gap is formed for other common plastic types like...
Resource Type:: Honors College Thesis
Full Text:: approved: _____________________________________________________ Stacey Harper Plastic pollution is an

Environmental Transformations in Hydrophobicity of TiO2 P-25 Nanoparticles in Alsea River Waters

Creator:: Boenisch, Kylie
Abstract:: Hydrophobic titanium dioxide (TiO2) nanoparticles (NPs) are prevalent in industry and manufacturing. They are known for their white pigmentation, are found in sunscreens, paints, cosmetics, and are frequently used in wastewater treatment. Understanding the physicochemical properties of TiO2 P-25 NPs, such as hydrophobicity, are essential when determining their fate, transport,...
Resource Type:: Honors College Thesis
Full Text:: :_____________________________________________________ Stacey Harper Hydrophobic titanium dioxide (TiO2) nanoparticles (NPs) are prevalent in

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
Full Text:: : _____________________________________________________ Stacey Harper As nanoparticle (NP) research and development expands, the significance

Developmental effects of micro- and nanoscale tire particles and recycled rubber on zebrafish

Creator:: Mottern, Taylor H.
Abstract:: Plastics have become an essential part of everyone lives, found in almost every product made today. Tires only make up a fraction of these products but as their use increasing so does the microplastics that flake off. Many studies have evaluated the toxic effects of tire particles on aquatic environments...
Resource Type:: Honors College Thesis
Full Text:: rubber on zebrafish. Abstract approved: Stacey Harper Plastics have become an essential

Making Science Accessible

Creator:: Renda, Ashley R.
Abstract:: My work in the Harper Nanotoxicology Lab focuses on science communication. The Harper Lab conducts research to address data gaps regarding the toxicity of micro and nanoplastic in the environment, specifically in aquatic habitats. It is important for the public to understand what the lab does, and how they can...
Resource Type:: Video

Comparative toxicological assessment of PAMAM and thiophosphoryl dendrimers using embryonic zebrafish.

Creator:: Pryor, Joseph Brian
Abstract:: Dendrimers are well-defined, polymeric nanomaterials currently being investigated for their biomedical applications. Initially, higher generation (size) dendrimers were of interest because of their drug carrying capacity. However, increased generation was associated with increased toxicity. The objective of the present study was to investigate the role of surface charge and generation...
Resource Type:: Honors College Thesis
Full Text:: : ______________________________________________ Stacey Harper Dendrimers are well-defined, polymeric nanomaterials

Reduced toxicity of benzethonium chloride to Escherichia coli through adsorption onto titanium dioxide nanoparticles

Creator:: Waldron, Kerri Raven
Abstract:: Antimicrobial agents are being increasingly used in consumer soaps and detergents, despite a lack of data demonstrating their efficacy in such products. This study investigated the nature of the interaction between different crystalline structures of titanium dioxide nanoparticles and BTC, and explore which structure, if any, could be best used...
Resource Type:: Honors College Thesis
Full Text:: Approved: _____________________________________________________ Stacey Harper Antimicrobial agents

Assessing Changes in Biological Interactions of Lipid-Coated Gold and Silver Nanoparticles Based on Physicochemical Properties

Creator:: Engstrom, Arek Mackenzie
Abstract:: Nanoparticles (NPs), particles defined by their size in a single dimension (1-100 nm), are being increasingly incorporated into commercial and industrial products due to their high surface area to volume ratio that gives them unique properties, such as optical tunability and higher reactivity than their bulk counterparts. NPs can be...
Resource Type:: Masters Thesis
Full Text:: Stacey L. Harper Nanoparticles (NPs), particles defined by their size in a single dimension (1

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
Full Text:: . Abstract approved:_____________________________________________________ Stacey L. Harper

Assessing the toxicity of nanoplastics using the primary human bronchial epithelial model

Creator:: Germano, Francesca
Abstract:: Emerging data showing the presence of atmospheric microplastics (MPs) has recently raised awareness surrounding the potential of human nanoplastics (NPs) exposure. Due to factors such as weathering, UV exposure, and other biodegradation processes, plastic pollution in the environment breaks down over time into micro (<5 micrometers) and nanoscale (<1000nm) particles....
Resource Type:: Masters Thesis
Full Text:: and Stacey Harper Emerging data showing the presence of atmospheric microplastics (MPs) has

ScholarsArchive@OSU

Chronic Toxicological Effects in Daphnia magna from Exposure to PMMA Nanoplastics

Environmental Transformations in Hydrophobicity of TiO2 P-25 Nanoparticles in Alsea River Waters

Optimizing Methods to Assess Nanoparticle Biodistribution in Embryonic Zebrafish

Developmental effects of micro- and nanoscale tire particles and recycled rubber on zebrafish

Making Science Accessible

Comparative toxicological assessment of PAMAM and thiophosphoryl dendrimers using embryonic zebrafish.

Reduced toxicity of benzethonium chloride to Escherichia coli through adsorption onto titanium dioxide nanoparticles

Assessing Changes in Biological Interactions of Lipid-Coated Gold and Silver Nanoparticles Based on Physicochemical Properties

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

Assessing the toxicity of nanoplastics using the primary human bronchial epithelial model

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