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Relevant bibliographies by topics / Colloid content / Dissertations / Theses

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Dissertations / Theses on the topic 'Colloid content'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Lundin, Maria. "Adsorption of biopolymers and their layer-by-layer assemblies on hydrophilic surfaces." Doctoral thesis, KTH, Yt- och korrosionsvetenskap, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11058.

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It is widely known that surfaces play an important role in numerous biological processes and technological applications. Thus, being able to modify surface properties provides an opportunity to control many phenomena occurring at interfaces. One way of controlling surface properties is to adsorb a polymer film onto the surface, for example through layer-by-layer (LbL) deposition of polyelectrolytes. This simple but versatile technique enables various polymers, proteins, colloidal particles etc. to be incorporated into the film, resulting in a multifunctional coating. Due to recent legislations

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2

Bonacci, Francesco. "Contact and macroscopic aging in dense suspensions at the colloidal edge." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC2047.

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Les suspensions (ou pâtes) colloïdales denses constituent une vaste catégorie de matériaux utilisés dans des domaines allant des systèmes environnementaux (tels que les limons, les argiles) à l'industrie (céramique, boues de forage, boues), à la construction (plâtre, ciments), aux produits alimentaires, aux cosmétiques, aux produits pharmaceutiques. Leur caractéristique la plus remarquable est la thixotropie: une lente évolution des propriétés mécaniques lors du passage du repos à l'écoulement (à densité fixe et sains drainage). Ainsi, leur viscosité sous écoulement, ou leur module de cisaille

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3

Floge, Sheri Ann. "Seasonal Variations in Colloidal Chromophoric Dissolved Organic Matter (CDOM) in the Damariscotta River Estuary, Maine." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/FlogeSA2005.pdf.

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4

Silva, Eid Cavalcante da. "Síntese e propriedades ópticas de sistemas coloidais contendo nanopartículas de ouro dispersas em óleo de mamona." Universidade Federal de Alagoas, 2008. http://repositorio.ufal.br/handle/riufal/1096.

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This dissertation of master s degree presents the results and discussions related to the synthesis, characterization, and stability of a new colloidal system containing gold nanoparticles (AuNP) dispersed in castor oil. In parallel, the stability of the system against agglomeration, after addition of other organic solvents in the medium was evaluated. In collaboration with the Laboratory of Optics and Materials of the Institute of Physics of the Federal University of Alagoas, the non linear optical properties of the new colloidal system were evaluated. The colloids were synthesized via wet che

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5

Bhandari, Khagendra P. "Characterization and Application of Colloidal Nanocrystalline Materials for Advanced Photovoltaics." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1430327894.

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6

Rio, Emmanuelle. "Gouttes, Flaques et Arches sèches : des lignes de contact en présence d'un écoulement." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2005. http://tel.archives-ouvertes.fr/tel-00010466.

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L'interaction entre des lignes de contact et un écoulement hydrodynamique intervient dans de nombreuses situations industrielles ou fondamentales. Nous etudions la dynamique de gouttes ruisselantes, tout d'abord le long de leur axe de symétrie (Partie I) puis a trois dimensions (Partie II) en mesurant la distribution d'angle de contact autour de cette goutte par réfraction d'une nappe laser et le champ de vitesse a la surface. Nous montrons que la situation est localement à deux dimensions, dans la direction perpendiculaire à la ligne de contact. L'angle de contact ne dépend que de la vitesse

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7

Setu, Siti Aminah. "Interfacial instabilities and wetting behaviour in confinement." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:7848f713-437b-4be8-b5f8-8232fcd59667.

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Interfacial instabilities and wetting phenomena of phase separated colloid-polymer mixtures are addressed in this study. Colloidal particles offer certain advantages over molecular systems, due to their larger lengthscales and slower timescales. Moreover, the phenomena can be directly visualised using laser scanning confocal microscopy, and a perfect match with soft-lithography fabrication techniques can be exploited. In particular, we study the viscous fingering instability in three dimensions, focusing on the role of wetting conditions and of thermal fluctuations. Combined with results obtai

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8

Hammond, Christian B. "Real Time Investigations of Aggregation of Sulfur-Rich Asphaltene." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1587405713284981.

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9

McConville, Patrick James. "A study of water binding, mobility and dehydration in contact lens hydrogels using NMR." Thesis, Queensland University of Technology, 2000. https://eprints.qut.edu.au/37049/6/37049_Digitised%20Thesis.pdf.

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Hydrogel polymers are used for the manufacture of soft (or disposable) contact lenses worldwide today, but have a tendency to dehydrate on the eye. In vitro methods that can probe the potential for a given hydrogel polymer to dehydrate in vivo are much sought after. Nuclear magnetic resonance (NMR) has been shown to be effective in characterising water mobility and binding in similar systems (Barbieri, Quaglia et al., 1998, Larsen, Huff et al., 1990, Peschier, Bouwstra et al., 1993), predominantly through measurement of the spin-lattice relaxation time (T1), the spinspin relaxation time

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10

Kolacz, Jakub. "Energy Minimization in Nematic Liquid Crystal Systems Driven by Geometric Confinement and Temperature Gradients with Applications in Colloidal Systems." Kent State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=kent1448898699.

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11

Pesesse, Antoine. "Synthèse de nanoparticules contenant des métaux pour la catalyse assistée par des bases de Lewis en suspension colloïdale." Electronic Thesis or Diss., Sorbonne université, 2021. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2021SORUS530.pdf.

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Dans ces travaux, nous avons synthétisé des nanoparticules contenant du cuivre et de l’or dans le but de créer une synergie avec une base de Lewis moléculaire lors de réactions catalytiques en suspension colloïdale. Une étude de la bibliographie, a mis en lumière l’intérêt d’utiliser une base de Lewis forte supplémentaire et encombrée pour réaliser une interaction de type « Paire de Lewis Frustrée » avec la surface de la nanoparticule (Chapitre 1). Des travaux antérieurs ont montré que la formation d’une couche d’oxyde pourrait expliquer l’instabilité des nanoparticules de cuivre vis-à-vis de

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12

Destribats, Mathieu. "Emulsions stabilisées par des particules colloïdales stimulables : propriétés fondamentales et matériaux." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2010. http://tel.archives-ouvertes.fr/tel-00593686.

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Des émulsions particulièrement stables peuvent être formulées à l'aide de particules colloïdales (émulsions dites de Pickering). L'objectif de cette étude est d'accéder à la compréhension des mécanismes de stabilisation des interfaces, ainsi que du lien entre propriétés interfaciales et propriétés macroscopiques des émulsions. Dans ce cadre, la stratégie adoptée repose sur l'utilisation de particules colloïdales dont les caractéristiques peuvent être variées continûment à la fois en amont par la chimie de synthèse (variation de la mouillabilité, de la déformabilité) et in situ par un stimulus

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13

Teulon, Lauryanne. "Nouvelles approches pour l'assemblage électrostatique de particules colloïdales par nanoxérographie : du procédé aux applications." Thesis, Toulouse, INSA, 2018. http://www.theses.fr/2018ISAT0044.

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Grâce à leurs propriétés physiques/chimiques uniques, les nanoparticules colloïdales sont au cœur de nombreuses applications innovantes. Afin de faciliter leur caractérisation ou de les intégrer dans des dispositifs fonctionnels, il est nécessaire de les assembler de manière dirigée sur des surfaces solides. Dans ce contexte, l’objectif de cette thèse est de mieux comprendre et d’optimiser la technique de nanoxérographie, méthode d’assemblage dirigé où des nanoparticules sont piégées sur des motifs de charges électrostatiques. Après un premier travail consistant à améliorer le procédé de nanox

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14

Midander, Klara. "Metal Particles – Hazard or Risk? Elaboration and Implementation of a Research Strategy from a Surface and Corrosion Perspective." Doctoral thesis, Stockholm : Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11695.

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15

蕭孟軒. "A Novel Injectable Colloidal Nanogel with Extremely High Water Content for Drug Delivery." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/24694637520203574097.

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碩士<br>國立交通大學<br>材料科學與工程學系<br>98<br>A novel colloidal injectable nanogel was successfully prepared based on an amphiphilically-modified chitosan prepared previously in this lab, which underwent a thermally-induced sol-to-gel transition upon a temperature change from ambient to physiological environment. Amphiphilic nature of the modified chitosan rendered subsequent self-assembly forming nanocapsules in aqueous solutions. Gelation occurred even with less than 1% nanocapsules upon a change in temperature over reasonable time duration, forming a solid-gel entity in situ. A subsequent application

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16

Tsai, Ya-Chao, and 蔡雅兆. "Comparison of Colloidal Chitosan and Chitosan on Body Weight, Nutrient Removal and Cholesterol and Triglyceride Content of Mice." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/99444478809788394724.

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碩士<br>東海大學<br>食品科學系<br>92<br>Chitosans of low (0~10%), middle (40~50%) and high (＞85%) deacetylation degrees were prepared from chitin, then treated wigh 12 N HCl into colloidal chitosans. Chitsons and colloidal chitosans were individually added at different concentrations of 2.5, 5.0, 7.5, 10.0% to basic diet, high fat diet and high cholesterol diet those were feed in mice. Chitosans and colloidal chitosan were compared on some properties such as internal structure（Scanning Electron Microscopy, SEM）, hydrolyzing degree, viscosity, molecular weight and deacetylation degree, also on biological

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17

WOOD, JEFFERY ALAN. "Use of Spatially Non-Uniform Electric Fields for Contact-Free Assembly of Three-Dimensional Structures from Colloidal Particles." Thesis, 2012. http://hdl.handle.net/1974/6987.

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In this thesis, three speciﬁc research contributions to the use of non-uniform electric ﬁeld driven colloidal assembly are described. The ﬁrst relates to experimental work using dielectrophoretic and electrohydrodynamic forces (electroosmosis) to shape three-dimensional colloidal structures. Formation and stabilization of close-packed three-dimensional structures from colloidal silica was demonstrated, using gelation of pluronic F-127 to preserve medium structure against suspension evaporation. Stabilization of ordered structures was shown to be a signiﬁcant challenge, with many of the convent

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18

Rodriguez-Pin, Elena. "Grain-scale mechanisms of particle retention in saturated and unsaturated granular materials." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-12-2537.

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The phenomenon of particle retention in granular materials has a wide range of implications. For agricultural operations, these particles can be contaminants transported through the ground that can eventually reach to aquifers, consequently contaminating the water. In oil reservoirs, these particles can be clays that get detached from the rock and migrate with the flow after a change of pressure, plugging the reservoir with the consequent reduction in permeability. These particles can also be traceable nanoparticles, introduced in the reservoir with the purpose of identifying bypassed oil. For

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19

Boechat, Chequer Larissa. "Particle Detachment in Single-Phase and Two-Phase Flows in Porous Media." Thesis, 2019. http://hdl.handle.net/2440/124362.

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Hereby I present a PhD thesis by publications. This thesis includes seven journal papers, of which six have already been published in peer-reviewed journals and one has been submitted for publication and is presently under review. This thesis shows that the commonly used single particle-single surface Derjaguin-Landau-Verwey-Overbeek (DLVO) calculations do not always effectively predict particle detachment. Therefore, the mobilisation of clustered structures under particle-particle attraction is investigated. The critical detachment velocity of clusters is higher than for single colloids and p

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20

Yapici, Murat K. "Development of Micromachined Probes for Bio-Nano Applications." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-6966.

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The most commonly known macro scale probing devices are simply comprised of metallic leads used for measuring electrical signals. On the other hand, micromachined probing devices are realized using microfabrication techniques and are capable of providing very fine, micro/nano scale interaction with matter; along with a broad range of applications made possible by incorporating MEMS sensing and actuation techniques. Micromachined probes consist of a well-defined tip structure that determines the interaction space, and a transduction mechanism that could be used for sensing a change, imparting e

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