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  • 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:
    _____________________________________________________________________ Bryan Harper, Committee Member, representing the Department of Environmental and Molecular

  • 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:
    Harper, Mentor, representing Chemical, Biological, and Environmental Engineering Bryan Harper

  • 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:
    _____________________________________________________________________ Bryan Harper, Committee Member, representing Environmental and Molecular Toxicology

  • 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:
    Engineering _____________________________________________________________________ Bryan Harper

  • 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:
    _____________________________________________________________________ Bryan Harper, Committee Member, representing Department of Environmental and Molecular