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Dissertations / Theses on the topic 'Surfactant aggregate'

Author: Grafiati

Published: 18 May 2024

Last updated: 31 July 2025

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1

Mrinmay, Jha. "Physico-chemical studies on soft matter: behaviour of surfactant aggregate and biodegradable polymer systems." Thesis, University of North Bengal, 2015. http://ir.nbu.ac.in/handle/123456789/1526.

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2

Mousseau, Fanny. "Le surfactant pulmonaire, une barrière déterminante de la réponse des cellules à l'exposition aux nanoparticules." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC125/document.

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Les particules fines émises par l'activité humaine sont la cause de diverses pathologies pulmonaires et cardiaques. Les particules de taille inférieure à 100 nm, appelées nanoparticules, sont particulièrement nocives car une fois inhalées, elles peuvent atteindre les alvéoles pulmonaires, lieux des échanges gazeux. Dans les alvéoles, les nanoparticules entrent d'abord en contact avec le surfactant pulmonaire. Ce fluide biologique tapisse les cellules épithéliales des alvéoles sur une épaisseur de quelques centaines de nanomètres et est composé de phospholipides et de protéines, les phospholipi

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3

Kjellin, Mikael. "Structure-Property Relationships of Surfactants at Interfaces and Polyelectrolyte-Surfactant Aggregates." Doctoral thesis, KTH, Chemistry, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3299.

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<p>The first part of this thesis is concerned with thestructure-property relationships in nonionic surfactantsystems. The main aim was to investigate how the surfactantstructure influences the adsorption at interfaces andinteractions between surfactant coated interfaces.Particularly, the effect of the structure of the surfactantheadgroups was investigated. These were sugar-based headgroupwith varying size and flexibility and poly(ethylene oxide)based headgroups with or without an additional amide or estergroup. The hydrophobic part of the surfactant consisted mostlyof straight alkyl chains, ex

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4

Renoncourt, Audrey. "Study of supra-aggregates in catanionic surfactant systems." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976351714.

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5

Singh, Pankaj Kumar. "Dispersion of nanoparticulate suspensions using self-assembled surfactant aggregates." [Gainesville, Fla.] : University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE1001182.

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6

Voisin, David. "Polyelectrolyte surfactant aggregates and their deposition on macroscopic surfaces." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251089.

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7

Lam, Viet Duy. "Structure of Rod-like Polyelectrolyte-Surfactant Aggregates in Solution and in Adsorbed Layers." Research Showcase @ CMU, 2011. http://repository.cmu.edu/dissertations/69.

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Polyelectrolyte-surfactant aggregates (PES) have diverse sets of properties, which could be controlled by a wide range of parameters, both within the aggregates themselves and the surrounding environment. The large portfolio of applications amplifies the need to understand them. A particular system of polyelectrolyte-surfactant aggregate, polycetyltrimethyl vinylbenzoate, denoted pC16TVB, which self-assembles in aqueous solution, is the main focus of the thesis. Its structure is the product of the balance between surfactant head groups – polyelectrolyte charge groups electrostatic interactions

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8

Chagas-Silva, Fatima Aparecida das. "Novos materiais funcionais organo-híbridos baseados em óxidos metálicos e diimidas aromáticas." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-10092012-094158/.

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O uso e estudo de materiais híbridos para desenvolver novos materiais com qualidades superiores para aplicações em fotônica, sensores e áreas afins é um desafio para o químico. Neste contexto deve-se especular sobre as propriedades de associação de materiais orgânicos e inorgânicos para alcançar novas e melhores propriedades. Neste estudo, os óxidos metálicos (óxidos de cério em particular), uma classe especial entre nanopartículas inorgânicas, foram selecionados para explorar as suas aplicações com uma classe, também especial de compostos orgânicos, sendo no nosso estudo as Naftaleno Diimidas

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9

Li, Yan. "A study of surfactant aggregates (a) in the presence of neutral polymers, and (b) as potential lubricants." Thesis, University of Salford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244844.

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10

Shen, Licheng. "Investigation of the removal and recovery of metal cations and anions from dilute aqueous solutions using polymer-surfactant aggregates." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:33afa911-3ffb-484e-8db5-b6843928f175.

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Dilute metallic ion treatment (< 10 mg/L) remains a challenge in water purification and resource recovery. A novel and inexpensive treatment process that employs polymer-surfactant aggregates (PSAs) has been developed and applied to remove and recover dilute metallic ions, such as Cr3+, Rh3+, Cd2+, Fe(CN)6 3- and CrO42-, from industrial process and effluent. At the heart of this process is a material that comprises a colloidal structure of polymers and surfactants, named a polymer-surfactant aggregate (PSA), that trap metallic ions. The ion loaded PSAs then coalesce and settle out. The flocs a

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11

Burdíková, Jana. "Biokompatibilní amfifilní látky v interakcích s polymery." Doctoral thesis, Vysoké učení technické v Brně. Fakulta chemická, 2018. http://www.nusl.cz/ntk/nusl-371152.

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This work is focused on the study of interaction between hyaluronan and high-biocompatible amphiphilic molecules. Using fluorescent probe method, screening of the interaction of cationic lipid 1,2-dipalmitoyl-3-trimethylammonium-propane (DPTAP), mixture of this cationic lipid with zwitterionic lipid, 1,2-dipalmitoyl-sn-glycero-3-phosphochloline (DPPC), with hyaluronan, both native and hydrophobically modified was carried out. Results showed the self-aggregation of DPPC and DPTAP independently on lipids ratio in the mixture and the interaction of DPTAP and DPPC/DPTAP aggregates with hyaluronan

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12

Zerkoune, Leïla. "Développement de nanovecteurs multicompartimentaux à base de cyclodextrines amphiphiles et de lipides pour des applications en nanomédecine." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA114837.

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L’idée directrice de ce travail de thèse était d’introduire au sein de mésophases lipidiques des molécules de β-cyclodextrine (βCD) amphiphiles obtenue par bio-estérification afin d’obtenir des nano-assemblages plurimoléculaires et multi-compartimentés combinant trois fonctions essentielles pour le transport ou la vectorisation de molécules thérapeutiques : (i) la capacité d’incorporer une substance d’intérêt par formation de complexe d’inclusion avec la cyclodextrine ; (ii) être biocompatibles et aptes à passer facilement les barrières biologiques ; (iii) pouvoir co-incorporer une seconde sub

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13

Su, Yu-Tse, and 蘇昱澤. "The Synthesis and Aggregate Behaviors of A Novel Surfactant." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/21298368582302428553.

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碩士<br>國立臺灣大學<br>化學研究所<br>96<br>The pH-sensitive anionic surfactant has been synthesized and its aggregate behaviors in the aqueous solution have been studied at different pH value. At higher pH value, the anionic surfactant will be fully de-protonated as a divalent molecule and generate higher curve aggregate, micelle. At lower pH value, the anionic surfactant will gradually be protonated and generate lower curve aggregate, vesicle or acid soap precipitate. The driving force that dominates their packing behaviors is hydrogen bonding generated from adjacent partial protonated surfactants. The c

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14

Su, Yu-Tse. "The Synthesis and Aggregate Behaviors of A Novel Surfactant." 2008. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2407200814110700.

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15

Kriegel, Christina. "Electrospinning of nanofibers in the presence of surfactants and surfactant aggregates." 2008. https://scholarworks.umass.edu/dissertations/AAI3336968.

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Electrospun nanofibers have improved physicochemical properties compared to macroscalar fibers and are therefore increasingly investigated for use in novel food packaging systems. The objectives of this study were to electrospin nanofibers and to evaluate the effect and feasibility of surfactants and surfactant aggregates to modulate properties and functionalities of electrospun nanofibers. Nanofibers were fabricated by electrospinning a mixture of cationic chitosan and noncharged poly(ethylene oxide) (PEO) in aqueous acetic acid. To improve spinnability and nanofiber morphologies, surfactants

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16

Renoncourt, Audrey [Verfasser]. "Study of supra-aggregates in catanionic surfactant systems / by Audrey Renoncourt." 2005. http://d-nb.info/976351714/34.

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17

Wu, Chi Hong, and 吳志宏. "Study of aggregates of surfactants in aqueous solution using laser light scattering." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/22901195286353939666.

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18

Lugo, Quijada Dersy Marileth [Verfasser]. "Adsorption of surfactants on colloidal silica: effects of surface curvature on the structure of surface aggregates / vorgelegt von Dersy Marileth Lugo Quijada." 2010. http://d-nb.info/1004087357/34.

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