Index Catalog // ScholarsArchive@OSU

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

Novel Approaches to Evaluate the Environmental Impacts of Nanomaterials

Creator:: Wu, Fan
Abstract:: Numerous studies have shown that some nanomaterials are highly toxic to aquatic organisms and can potentially disrupt overall community health; however, current methods to evaluate the nanomaterials environmental impacts rarely consider the environmental realism or provide sufficient detail on the impact at the community level. Here we demonstrate three approaches...
Resource Type:: Dissertation
Full Text:: Abstract approved: ____________________________________________ Stacey L. Harper Numerous

An in silico Approach to Determine the Influence of Surface Chemical Properties on the Toxicity of Engineered Zinc Oxide Nanoparticles

Creator:: Zhou, Zitao
Abstract:: Nanotechnology products have long since made their way to markets around the world increasing the concerns about whether nanomaterials pose a risk to our environment or health. It has been suggested that engineered nanomaterial (ENM) with broad applications and rapid commercialization need better risk assessment and regulation. However, the refinement...
Resource Type:: Masters Thesis
Full Text:: Toxicity of Engineered Zinc Oxide Nanoparticles. Abstract approved: Stacey L. Harper Nanotechnology

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

Addressing Persistent Challenges in Nanotoxicology Exposures : Techniques for in situ Characterization

Creator:: Crandon, Lauren E.
Abstract:: Nanoparticles (NPs), defined by their size (1-100 nm), are increasingly incorporated into commercial and industrial products due to their high surface area and unique properties. They can be designed for specific applications by manipulating composition, size, shape, and surface functionalization. As NP production and complexity increases, there is a need...
Resource Type:: Dissertation
Full Text:: Abstract approved: Stacey L. Harper Nanoparticles (NPs), defined by their size (1-100 nm), are

Method development for characterizing the hydrophobicity of engineered nanoparticles

Creator:: Lee, Fang Yu
Abstract:: Characterizing the hydrophobicity of nanoparticles can help us understand their fate and transport in the environment, as well as how nanoparticles may interact with biological systems. However, contact angle and partition coefficient have limitations in measuring the hydrophobicity of nanoparticles, thus promising methods to measuring the hydrophobicity of nanoparticles are...
Resource Type:: Masters Thesis
Full Text:: Stacey L. Harper Characterizing the hydrophobicity of nanoparticles can help us understand their

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

Development of traceable metal oxide nanoparticles for examining environmental fate and transport

Creator:: Rowbotham, Brian
Abstract:: The fate and transport of engineered nanoparticles (ENPs) such as titanium dioxide (TiO₂) are of concern due to their increasing use in consumer products. Although analytical methods for detection and quantification of ENPs in environmental matrices are being developed, these methods are difficult, time consuming, and not easily validated for...
Resource Type:: Masters Thesis
Full Text:: treatment, an d the ability of labeled particles to be detected against background titanium concentrations

The effects of engineered coatings and natural organic matter on nanoparticle aggregation

Creator:: McDowell, Shannon A.
Abstract:: In order to better predict the aggregation state of nanomaterials, the factors that influence aggregation must be understood. The combined effects of natural and engineered coatings have been shown to factor into nanoparticle aggregation behavior in preliminary research. In this study, aggregation behaviors of gold nanoparticles with two different engineered...
Resource Type:: Masters Thesis
Full Text:: . Aggregation of cit-AuNPs in the presence of NOM isolates and KCl. (a-d) TR-DLS profiles of cit-AuNPs in 1

Development and applications of a high-throughput activity assay, using the ammonia-oxidizing bacteria Nitrosomonas europaea

Creator:: Bartow, Shannon M.
Abstract:: The rising demand on freshwater resources emphasizes the benefit of biogeochemical processes that maintain clean water by removing pollutants such as excess nitrogen. The most sensitive step in the removal of nitrogen from waterways is the oxidation of ammonia, a part of nitrification, which is carried out by ammonia oxidizing...
Resource Type:: Masters Thesis
Full Text:: nitrogen under section 303(d) of the Clean Water Act (EPA 1993). Jurisdictions with waters that exceed

ScholarsArchive@OSU

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

Novel Approaches to Evaluate the Environmental Impacts of Nanomaterials

An in silico Approach to Determine the Influence of Surface Chemical Properties on the Toxicity of Engineered Zinc Oxide Nanoparticles

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

Addressing Persistent Challenges in Nanotoxicology Exposures : Techniques for in situ Characterization

Method development for characterizing the hydrophobicity of engineered nanoparticles

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

Development of traceable metal oxide nanoparticles for examining environmental fate and transport

The effects of engineered coatings and natural organic matter on nanoparticle aggregation

Development and applications of a high-throughput activity assay, using the ammonia-oxidizing bacteria Nitrosomonas europaea

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