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Relevant bibliographies by topics / Manufactured Nanomaterials / Dissertations / Theses

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Dissertations / Theses on the topic 'Manufactured Nanomaterials'

Author: Grafiati

Published: 10 September 2021

Last updated: 29 July 2025

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1

Judy, Jonathan D. "Bioavailability of Manufactured Nanomaterials in Terrestrial Ecosystems." UKnowledge, 2013. http://uknowledge.uky.edu/pss_etds/18.

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Manufactured nanomaterials (MNMs) from the rapidly increasing number of consumer products that contain MNMs are being discharged into waste streams. Increasing evidence suggests that several classes of MNMs may accumulate in sludge derived from wastewater treatment and ultimately in soil following land application as biosolids. Little research has been conducted to evaluate the impact of MNMs on terrestrial ecosystems, despite the fact that land application of biosolids from wastewater treatment will be a major pathway for the introduction of MNMs to the environment. To begin addressing this k

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2

Briffa, Sophie Marie. "Synthesis and ageing transformations of manufactured metal oxide nanomaterials." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7438/.

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With the increased use of manufactured nanomaterials (MNMs) and increased environmental and human exposure, "nanosafety" has become a major research objective. This field has yet to advance due to challenges in systematically linking physicochemical properties to toxicity. The aim of this work was to develop a library of comparable NMs and study their behaviour and ageing in different scenarios. A library of metal oxide NMs based on a PVP capped ceria synthesis protocol was developed and extensively characterised. The protocol was successfully modified to produce PVP capped zinc oxide and copp

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3

Starnes, Daniel L. "THE EFFECTS OF MANUFACTURED NANOMATERIAL TRANSFORMATIONS ON BIOAVAILABILITY, TOXICITY AND TRANSCRIPTOMIC RESPONSES OF CAENORHABDITIS ELEGANS." UKnowledge, 2016. http://uknowledge.uky.edu/pss_etds/74.

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In recent decades, there has been a rapid expansion in the use of manufactured nanoparticles (MNPs). Experimental evidence and material flow models predict that MNPs enter wastewater treatment plants and partition to sewage sludge and majority of that sludge is land applied as biosolids. During wastewater treatment and after land application, MNPs undergo biogeochemical transformations (aging). The primary transformation process for silver MNPs (Ag-MNPs) is sulfidation, while zinc oxide MNPs (ZnO-MNPs) most likely undergo phosphatation and sulfidation. Our overall goal was to assess bioavailab

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4

Rathnayake, Sewwandi. "TRANSFORMATIONS, BIOAVAILABILITY AND TOXICITY OF MANUFACTURED ZnO NANOMATERIALS IN WASTEWTER." UKnowledge, 2013. http://uknowledge.uky.edu/pss_etds/25.

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In order to properly evaluate the ecological and human health risks of ZnO Manufactured nanomaterials (MNMs) released to the environment, it is critical to understand the likely transformation products in the wastewater treatment process and in soils receiving biosolids. To address this critical knowledge gap, we examined the transformation reactions of 30 nm ZnO MNMs in single component and multi-component systems, with phosphate and natural organic matter (NOM). We also assessed the influence of nano ZnO transformation on the bioavailability, and toxicity of ZnO transformation products to Tr

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5

Li, Jieran. "IMPACT OF PHYSICO-CHEMICAL PROPERTIES OF MANUFACTURED NANOMATERIALS ON PLANT UPTAKE AND TROPHIC TRANSFER." UKnowledge, 2018. https://uknowledge.uky.edu/toxicology_etds/24.

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Large quantities of manufactured nanomaterials (MNM) are released into the environment by human activity each year. The entry of MNM into the terrestrial food webs, which has the potential for far-reaching impacts, begins with the uptake by plant species from the soil. These processes can be affected by MNM physico-chemical properties such as size, chemical composition, surface charge, etc., of which our knowledge is still incomplete. To bridge some of the gaps in our understanding of these processes and, specifically, to determine whether the physico-chemical properties of the MNM are predict

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6

Wamucho, Anye. "MULTIGENERATIONAL GENOMIC AND EPIGENETIC EFFECTS OF MANUFACTURED SILVER NANOMATERIALS IN CAENORHABDITIS ELEGANS." UKnowledge, 2019. https://uknowledge.uky.edu/toxicology_etds/26.

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There has been an increase in the incorporation of silver nanomaterials into consumer products due to their antimicrobial properties. Therefore there is potential for silver nanoparticles (Ag-NPs) to leach out into the environment during different life-cycle stages of these nanomaterial-containing products. Concern about the toxicity of Ag-NPs has led to investigations into their toxic effects on a variety of organisms mainly using acute and sub-chronic, single-generation exposures. The focus of this project was to understand the effects of long-term continuous multigenerational exposure to Ag

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7

Gao, Jie. "Potential environmental implications of manufactured nanomaterials toxicity, mobility, and nanowastes in aquatic and soil systems /." [Gainesville, Fla.] : University of Florida, 2008. http://purl.fcla.edu/fcla/etd/UFE0022129.

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8

Oostveen, Emily Kay. "THE ROLE OF SURFACE CHEMISTRY IN THE TOXICITY OF MANUFACTURED CERIUM DIOXIDE NANOMATERIALS TO CAENORHABDITIS ELEGANS." UKnowledge, 2014. http://uknowledge.uky.edu/pss_etds/46.

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Manufactured CeO2 nanomaterials (CeO2-MNMs) are used for a wide variety of applications including diesel fuel additives and chemical/mechanical planarization media. To test the effects of CeO2-MNM surface coating charge on to model organism Caenorhabditis elegans, we synthesized 4 nm CeO2 with cationic (DEAE-), anionic (CM-), and neutral (DEX) coatings. In L3 nematodes exposed for 24 hours, DEAE-CeO2 induced lethality at lower concentrations than CM- or DEX-CeO2. Feeding slightly decreased CeO2 toxicity, regardless of coating. In L2 nematodes exposed for 48 hours with feeding, DEAE-CeO2 caused

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9

Boonkhao, Bundit. "On-line characterisation techniques for manufacture of nanomaterials." Thesis, University of Leeds, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540791.

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10

Molina, Saqui Andoni Royer. "Desarrollo de materiales compuestos de matriz termoplástica reforzados con nanopartículas utilizando la técnica de modelado por deposición fundida empleada en manufactura aditiva." Master's thesis, Pontificia Universidad Católica del Perú, 2016. http://tesis.pucp.edu.pe/repositorio/handle/123456789/6828.

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Hoy en día la manufactura aditiva está teniendo una gran acogida tanto en el campo académico como industrial, ya que con ella se pueden fabricar piezas con geometrías complicadas sin la necesidad de usar moldes o los clásicos procesos de manufactura por remoción de material, donde un gran porcentaje del material es desperdiciado sin la opción en muchos casos a poder reciclarlos. En cambio con la manufactura aditiva se pueden obtener piezas de manera directa partiendo de un modelo tridimensional hecho por un programa de diseño asistido por computador (CAD). Sin embargo el limitado uso de materi

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11

Mohamed, Assad. "Les nanomatériaux manufacturés, un enjeu pour la protection de la société. : Le cas de la protection juridique des travailleurs." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM3074/document.

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Dans le cadre d'un projet de recherche proposé par l'Institut National de Recherche et de Sécurité (INRS), cette thèse aborde les nanomatériaux manufacturés (NMM) sous l'angle philosophique à la recherche des conditions de possibilité d'une protection juridique efficace et évolutive, des travailleurs en industrie de production et d'utilisation de ces objets. Les NMM sont des objets fondamentalement nouveaux, polémiques et polymorphes avec des propriétés souvent inédites.La première partie de la thèse rend compte des problèmes spécifiques à la production de normes dans l'expérience humaine, plu

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12

Shandilya, Neeraj. "Study of the (nano) particles emission during mechanical solicitation and environmental weathering of the products." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2170/document.

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Les nanomatériaux manufacturés (comme les nanoparticules d’oxydes métalliques, les nanotubes de carbone, les nanofibres etc.) possèdent des propriétés remarquables qui leur confèrent des applications industrielles innovantes. Néanmoins, ces nouveaux matériaux soulèvent des inquiétudes vis à vis de leurs potentiels risques. Ces nanomatériaux manufacturés connaissent une production et une commercialisation croissantes. Par conséquent, de plus en plus de personnes sont potentiellement exposées à ces nanomatériaux (aussi bien les consommateurs que les opérateurs) à travers les aérosols qui pourrai

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13

Saruga, Andreia Sofia Ferreira. "Cyto- and genotoxicity assessment of manufactured nanomaterials in the A549 cell line." Master's thesis, 2016. http://hdl.handle.net/10362/19347.

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A number of nanomaterials (NMs) have been applied in different fields due to their unique physico-chemical properties. As the use and applications have increased in some industries, serious concerns about their potential impact on the environment and the human health have been raised and have been a challenge for the regulatory authorities. This work aimed at assessing the toxicity of three classes of NMs, namely cerium dioxide, CeO2 (NM-212), titanium dioxide, TiO2 (NM-101 and NM-100) and barium sulphate, BaSO4 (NM-220) since they already have a broad range of applications in industry and co

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14

Louro, Maria Henriqueta Dias Lourenço Garcia. "Nanomateriais manufaturados: avaliação de segurança através da caracterização dos seus efeitos genéticos." Doctoral thesis, 2013. http://hdl.handle.net/10362/17258.

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RESUMO - Os nanomateriais manufaturados (NMs), isto é, fabricados deliberadamente para fins específicos, apresentam propriedades físico-químicas únicas como a dimensão, área superficial ou funcionalização, que lhes conferem caraterísticas mecânicas, óticas, elétricas e magnéticas muito vantajosas para aplicações industriais e biomédicas. Efetivamente, a tecnologia baseada nos NMs, ou nanotecnologia, foi identificada como uma key enabling technology, impulsionadora do crescimento económico dos países industrializados, devido ao seu potencial para melhorar a qualidade e desempenho de muito

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15

Ajaero, Chukwuemeka. "Manufacture, characterisation and analytical application of nanomaterials in sensor devices." Master's thesis, 2010. http://hdl.handle.net/10400.1/10732.

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The main objective of this study consisted of developing a new type of amperometric sensors based on depositing gold nanoparticles obtained from two different synthetic routes (thermal and ultrasonic methods) on the surface of a Sonogel Carbon matrix, in order to build electrochemical devices.

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16

Dimou, Kaotar. "Analyse systématique des données sur le control banding et proposition d’une méthode semi-quantitative selon des critères physico-chimiques et biologiques des nanomatériaux manufacturés." Thèse, 2019. http://hdl.handle.net/1866/23581.

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Parmi les méthodologies d’appréciation du danger ayant connu une forte croissance ces dernières décennies figurent le Control Banding (CB). Selon une estimée du NIOSH (National Institute for Occupational Safety and Health), cette approche qualitative a été développé dans l’industrie pharmaceutique dans un but concret de protéger près de 90% de travailleurs n’ayant pas accès à des services de santé, de sécurité et d’hygiène au travail. Actuellement, cette approche peut être adaptée aux spécificités des nanomatériaux (NMs) pour lesquelles peu de connaissances scientifiques sont disponibles sur l

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