Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Engineered nanoparticles"”.
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Aerosolization and Atmospheric Transformation of Engineered Nanoparticles
While research on the environmental impacts of engineered nanoparticles (ENPs) is growing, the potential for them to be chemically transformed in the atmosphere has been largely ignored. The overall objective of this work was to assess the atmospheric transformation of carbonaceous nanoparticles …
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Fate and Treatability of Engineered Nanoparticles in Urban Stormwater
Despite the tremendous benefits of engineered nanoparticles (ENPs), their inevitable release into the environment may be detrimental and hence cause for concern of these emerging contaminants. In this thesis research, the fate and transport of nano-silver (n-Ag) and nano-titanium dioxide in source …
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Impact of engineered nanoparticles on the growth of roots
… a slow absorption rate in plants. In comparison engineered nanoparticles can be highly attractive as fertilizers as their small size will allow faster absorption. In particular, iron oxide-based nanoparticles will be highly promising as Fe-deficiency fertilizers because iron is required for …
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Are aquatic food webs vulnerable to copper and gold engineered nanoparticles?
Freshwater ecosystems are exposed to engineered nanoparticles through municipal and industrial wastewater-effluent discharges and agricultural non-point source runoff. These same anthropogenic waste streams which contain high concentrations and diversity of nanoparticles also contain excess …
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An In Vitro Assessment of The Potential for Engineered Nanoparticles to Modulate Innate Immunity
<p>The same properties that make engineered nanoparticles (ENPs) appealing for use in novel pharmaceuticals, biomedical and product enhancement applications (small size, large surface area and increased solubility) may also influence their ability to modulate immune defense and inflammatory …
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Development of a PBPK-based health risk assessment framework for exposure to cerium, gold, silver and titanium engineered nanoparticles
… and implement a novel integrated approach for engineered nanoparticles risk assessment using several health risk assessment frameworks. The study managed to apply a physiologically based pharmacokinetic model for ceria nanoparticles to determine biokinetics of ceria nanoparticles, establish …
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Magnetic seeding aggregation to enhance the removal efficiency of TiO2 nanoparticles from water
Engineered nanoparticles, such as titanium dioxide (TiO_2), are important building blocks for the evolution of nanotechnology in industries and commercial products. Ever so increasing use of the engineered nanoparticles is bound to result in a substantial fraction of these nanoparticles ending up …
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A personal thermophoretic sampler for airborne nanoparticles
Engineered nanoparticles are materials with at least one dimension measuring less than 100 nm that are designed on the molecular scale to produce unique or enhanced properties that differ from the bulk material. However, the same properties that make engineered nanoparticles attractive to industry …
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Effects of Microbial Community Stress Response and Emerging Contaminants on Wastewater Treatment Plants
… concentration and evaluates the impact of engineered nanoparticles on activated sludge microbial communities and other emerging pollutants, such as antibiotic resistance genes and disinfection by-products. In order to assess microbial community dynamics of the response of nitrifying …
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Design and Synthesis of Multimodal Lanthanide‐based Nanoparticles for Bioapplications
… them facilitated a rapid rise in the use of nanoparticles as unique tools for many biological applications. In the clinic, these engineered nanoparticles, capable of diverse functionalities, hold great promise to a more individualized approach to management and therapies of various diseases. …
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PHYSICAL CHEMISTRY OF COLLOIDAL-NANOPARTICLE INTERACTIONS
… advances in the design and characterization of engineered nanoparticles, biomaterials came into contact with the nano-world. Among many implementations of bio-nanotechnology, there is an increasing scientific and industrial interest in designing complex/hybrid structures (micro/macro) by merging …
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Airborne Nanoparticles: Generation, Characterization, and Occupational Exposure
… methods are needed to generate aerosolized engineered nanoparticles. We conducted a set of field studies to measure the fine particle mass concentrations (PM2.5) as well as nanoparticle number concentrations and size distributions in two nanomaterial manufacturing facilities. Measurements …
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High throughput analysis to study emerging pollutants and nanoparticle fate in biological systems
… of emerging and fugitive contaminants (EFCs) and engineered nanoparticles (ENPs) attract significant research interest for their potential risks to human health and the environment. In order to assess the health risks of these emerging contaminants, rapid and reliable analytical methods to measure …
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The impact of silver nanoparticles on plant physiology
Engineered nanoparticles (ENPs) are increasingly being exploited in a whole range of applications and products due to their novel physicochemistry. Hence it is inevitable that ENPs will enter the environment at an increasing rate over the coming years. The consequential impact following interaction …
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Investigation of Advanced Cavitation Agents for Nanoparticle-Mediated Histotripsy (NMH) Applications
… is an emergent non-invasive therapy that uses nanoparticles in combination with focused ultrasound with engineered nanoparticles to mechanically ablate targeted tissue with cavitation. Unlike conventional histotripsy, which requires high negative pressures (>25 MPa) for treatment, NMH utilizes …
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Analysis of engineered nanomaterials in the environment
With increasing incorporation of engineered nanoparticles (NPs) into consumer products, there is concern that these materials will be released to the environment with unknown ecological effects. Methods for detection and characterization of these materials at environmentally relevant concentrations …
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Analysis of engineered nanomaterials in the environment
With increasing incorporation of engineered nanoparticles (NPs) into consumer products, there is concern that these materials will be released to the environment with unknown ecological effects. Methods for detection and characterization of these materials at environmentally relevant concentrations …
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Release of Silver from Nanotechnology Consumer Products and Potential for Human Exposure
Silver nanoparticles (nanosilver) are gaining significant attention from the academic and regulatory communities, not only because of their antimicrobial effects and subsequent product applications, but also because of their potential health and environmental impacts. Although some human health …
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Nanoparticle systems that exploit host biology for diagnosis and treatment of disease
… This thesis aims to explore the potential of nanoparticles to interface with the host biology to perform systems-level applications that benefit disease sensing and treatment. First, we engineered nanoparticles to sense dysregulated protease activity associated with thrombosis and generate …
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Fate of metals in presence of minerals and mineral-organic assemblages
… controlling metals mobility in natural and engineered systems: (i) to optimize the reaction conditions for removing uranium from water systems by using synthesized biosurfactant-coated iron oxide nanoparticles, (ii) to elucidate the factors governing the fate of trace metals added in …
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