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Dissertations / Theses on the topic 'Agent fluorescent'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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1

Chen, Ye. "Measurement of white colour containing fluorescent whitening agent." Thesis, University of Leeds, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713487.

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Various experiments have been conducted to investigate the influence of fluorescent whitening agent (FWA) on aspects of colour evaluation. Large amount of samples were prepared by direct dyeing with various concentration of colorant dyes as well as FWA. These dyed samples, together with high-FWA-content samples provided by third party, were used as stimuli in instrumental measurement by spectrophotometer and tele-spectroradiometer as well as in psychophysical experiment. The influence of FWA on instrumental illumination variation, calibration methods' performance, calibration standards' perfor
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2

Diop, Bocar Noël. "Élaboration de nanoparticules hybrides multifonctionnelles à base de silice par microémulsion inverse : application à la conception d’un agent antibactérien." Thesis, Lyon 1, 2010. http://www.theses.fr/2010LYO10281/document.

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Cette thèse a pour objectif l’élaboration de nanoparticules hybrides à base de silice par microémulsion inverse. Les nanoparticules de silice constituent une matrice de base permettant de confiner et de protéger des molécules organiques et/ou des nanoparticules métalliques. L’incorporation combinée de différentes entités dans la silice ouvre ainsi de larges perspectives de par l'introduction de nouvelles propriétés liées à la structure hybride. Afin d’élaborer de tels objets, nous avons utilisé des micelles inverses à base d'eau, de Triton X-100, d'hexanol et de cyclohexane comme milieu réacti
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3

Beaulieu, Ann-Marie. "Inhibition du photojaunissement des pâtes à haute teneur en lignine par ajout d'agents fluorescents : étude spectroscopique et modélisation moléculaire." Mémoire, Université du Québec à Trois-Rivières, 2013. http://www.archipel.uqam.ca/5976/1/M12868.pdf.

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Dans le but de déterminer le phénomène physique ou chimique caché derrière l'efficacité des agents fluorescents à inhiber le photojaunissement de la lignine, plusieurs études ont été menées. Tout d'abord, une étude d'efficacité de nouvelles molécules d'agents fluorescents a été faite avec la technique des feuilles minces, faites de pâtes à haute teneur en lignine. Lors de cette étude, une molécule s'est démarquée du lot de par son efficacité à court et à long terme. Il s'agit d'UQTR-010. Par la suite, une étude de stabilité des agents fluorescents face aux conditions expérimentales en laborato
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4

Bernhard, Claire. "Synthèse d'agents chélatants bifonctionnels macrocycliques pour le marquage de molécules biologiques par des métaux : application en imagerie médicale." Thesis, Dijon, 2011. http://www.theses.fr/2011DIJOS024/document.

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L’imagerie moléculaire est devenue incontournable pour le diagnostic et le traitement de cancers. Cette discipline regroupe un ensemble de techniques telles que la tomodensitométrie (CT), l’Imagerie par Résonance Magnétique (IRM), l’imagerie optique ou encore l’imagerie nucléaire (tomographie par émission de positons TEP, tomographie d’émission monophotonique TEMP). Chacune de ces techniques possède ses propres avantages et inconvénients et ne peut apporter à elle seule des informations anatomiques et fonctionnelles suffisantes. Les travaux actuels sont portés sur la conception de systèmes dit
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5

Diop, Bocar Noël. "Élaboration de nanoparticules hybrides multifonctionnelles à base de silice par microémulsion inverse : application à la conception d'un agent antibactérien." Phd thesis, Université Claude Bernard - Lyon I, 2010. http://tel.archives-ouvertes.fr/tel-00838729.

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Cette thèse a pour objectif l'élaboration de nanoparticules hybrides à base de silice par microémulsion inverse. Les nanoparticules de silice constituent une matrice de base permettant de confiner et de protéger des molécules organiques et/ou des nanoparticules métalliques. L'incorporation combinée de différentes entités dans la silice ouvre ainsi de larges perspectives de par l'introduction de nouvelles propriétés liées à la structure hybride. Afin d'élaborer de tels objets, nous avons utilisé des micelles inverses à base d'eau, de Triton X-100, d'hexanol et de cyclohexane comme milieu réacti
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6

Alimi, Mickaël. "Nouvelle stratégie de véctorisation d'antibactériens via des métallodrogues : Principe, Synthèse et Activité biologique." Thesis, Paris 5, 2012. http://www.theses.fr/2012PA05P637.

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L'enveloppe cellulaire des bactéries à Gram négatif constitue la première ligne de défense contre les antibiotiques. Sous l’effet, d’une part, de la faible perméabilité de la membrane externe qui s'oppose à la pénétration des agents antibactériens, d’autre part des pompes d'efflux qui favorisent leur expulsion, elle empêche nombre de composés potentiellement actifs in vitro d'atteindre leur cible, limitant l’effet antibactérien. Un enjeu important pour restaurer l’activité de ces molécules est de trouver une stratégie pour en augmenter la concentration intracellulaire. L'objectif de cette thès
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7

Adjili, Salim. "Synthèse et caractérisation de sondes lipidiques macromoléculaires fluorescentes émettant dans le rouge lointain pour l'imagerie membranaire." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00876655.

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Ce projet de thèse consistait à synthétiser de nouveaux bio-conjugués Lipide-Polymère fluorescents émettant dans le rouge lointain, composés d'une chaîne polymère portant à la fois de nombreux chromophores en position latérale et un lipide en extrémité de chaîne. La structure de ces bio-conjugués est basée sur des copolymères poly(N-acryloylmorpholine-co-N-acryloxysuccinimide), hydrophiles, réactifs, modulables et d'architecture contrôlée obtenus par le procédé RAFT. Les copolymères réactifs ont ensuite été utilisés pour le couplage, en position latérale, de chromophores émettant dans le rouge
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8

Talbot, Collin. "Effects of relative humidity on the fluorescence of uranine (disodium fluorescein)." Oklahoma City : [s.n.], 2009.

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9

Boturyn, Didier. "Synthèse et étude de sondes fluorescentes pour le dosage des sites abasiques de l'ADN." Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10152.

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Notre projet etait de mettre au point a des fins epidemiologiques une methode globale d'evaluation des dommages subis par l'adn par des genotoxiques provenant de l'environnement ou de traitements therapeutiques antitumoraux (risque de cancer secondaire). L'approche repose sur la possibilite de transformer bon nombre de dommages subis par l'adn (bases alkylees) en une entite chimique unique et reactive : le site abasique. Pour determiner quantitativement le taux de sites abasiques formes au sein de l'adn, nous avons synthetise des molecules sondes fluorescentes capables de se fixer de maniere c
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10

Kumar, Lalit. "DEVELOPMENT OF NOVEL CHEMICAL TOOLS FOR PROTEASOME BIOLOGY & A NEW APPROACH TO 1-AZASPIROCYCLIC RING SYSTEM." UKnowledge, 2012. http://uknowledge.uky.edu/chemistry_etds/14.

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The proteasome, a multiprotease complex, is clinically validated as an anticancer target by the FDA approval of bortezomib and carfilzomib for the treatment of multiple myeloma. The emergence of resistance to proteasome inhibitors however remains a major clinical challenge. Recently, distinct types of proteasomes termed ‘intermediate proteasomes’, which contain unconventional mixtures of catalytic subunits, have been implicated with drug resistance of tumor cells. In elucidating the role of intermediate proteasomes in drug resistance, a crucial step is to unequivocally determine the subunit co
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11

Dixon, Laura Kellie. "Tracing Anthropogenic Wastes: Detection of Fluorescent Optical Brighteners in a Gradient of Natural Organic Matter Fluorescence." Scholar Commons, 2009. http://scholarcommons.usf.edu/etd/3815.

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A dual wavelength method was developed for the field detection of optical brighteners (OBs), fluorescent laundry additives used as indicators of anthropogenic wastes. The method was quantitative for OBs under variable levels of fluorescent colored dissolved organic matter (CDOM). Based on excitation at 300-400 nm and 440 and 550 nm emission, the method assumed a constant ratio of fluorescence due to CDOM alone, even if absolute amplitude varied. Concentrations of OBs were computed as the difference between the observed 440 nm emission and the expected CDOM fluorescence at 440 nm, as extrapolat
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12

Aman, Zaeem. "Efficiency of Fluorescent Whitening Agents in Pigment Coatings." Thesis, Karlstads universitet, Fakulteten för teknik- och naturvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-14976.

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The objective of this work was to study the addition of fluorescent whitening agents (FWAs) for efficient use on pigment coating of paper substrates with low grammage and the goal was to achieve high optical response by using low amount of FWAs. A commercial light-weight coated (LWC) paper grade was provided by Stora Enso Corbehem Mill and isotropic laboratory sheets were produced at Stora Enso Research Centre using PFI sheet former. Optical properties such as brightness, whiteness and L, a* and b* colour space values were evaluated using Minolta spectrophotometer with D65 illuminant for both
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13

Pauff, Steven M. "Advancements in the Synthesis and Application of Near-Infrared Imaging Reagents: A Dissertation." eScholarship@UMMS, 2001. http://escholarship.umassmed.edu/gsbs_diss/751.

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Fluorescence-based imaging techniques provide a simple, highly sensitive method of studying live cells and whole organisms in real time. Without question, fluorophores such as GFP, fluorescein, and rhodamines have contributed vastly to our understanding of both cell biology and biochemistry. However, most of the fluorescent molecules currently utilized suffer from one major drawback, the use of visible light. Due to cellular autofluorescence and the absorbance of incident light by cellular components, fluorescence imaging with visible wavelength fluorophores often results in high background no
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14

Pauff, Steven M. "Advancements in the Synthesis and Application of Near-Infrared Imaging Reagents: A Dissertation." eScholarship@UMMS, 2015. https://escholarship.umassmed.edu/gsbs_diss/751.

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Fluorescence-based imaging techniques provide a simple, highly sensitive method of studying live cells and whole organisms in real time. Without question, fluorophores such as GFP, fluorescein, and rhodamines have contributed vastly to our understanding of both cell biology and biochemistry. However, most of the fluorescent molecules currently utilized suffer from one major drawback, the use of visible light. Due to cellular autofluorescence and the absorbance of incident light by cellular components, fluorescence imaging with visible wavelength fluorophores often results in high background no
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15

Brunet, Aurelie Claude Laure. "Synthesis and in vitro applications of fluorescent imaging agents." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9659.

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Fluorescent imaging technologies that offer new ways to visualise and quantify fluorescently labelled molecules are increasing, necessitating the development of fluorescent molecules that can efficiently and specifically label targets in vitro and in vivo. The first aim of this thesis was the study of human neutrophil elastase. Human neutrophil elastase is an important enzyme in the regulation of inflammation but if over expressed can become part of the cause of inflammation itself. To elucidate this dual function and have a greater understanding of this enzyme, an imaging probe for neutrophil
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16

Liu, Jian. "Encapsulation of fluorescent whitening agents by cyclodextrins and their application." Thesis, University of Kent, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358719.

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17

Campbell, J. "The fate of fluorescent whitening agents in the aquatic environment." Thesis, University of South Wales, 1990. https://pure.southwales.ac.uk/en/studentthesis/the-fate-of-fluorescent-whitening-agents-in-the-aquatic-environment(4566785a-529e-4e59-873c-757b7aa19a23).html.

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The commercial use of fluorescent whitening agents (FWA' s) in products such as soaps and detergents has resulted in the presence of these compounds in domestic waste waters. A model compound (A) (a possible initial degradation product of a stilbene-s-triazine type FWA) was synthesised and biodegradation studies carried out on this compound in filtered activated sludge solution. During the test period (approximately 6 months) no degradation products were observed. Prior to undertaking biodegradation studies on a purified commercial stilbene-s-triazine FWA, Blankophor REU-P, a method was sought
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18

Paranjpe, Shirish. "Synthesis of Novel Fluorescent Benzothiazole Cyanine Dyes as Potential Imaging Agents." Digital Archive @ GSU, 2012. http://digitalarchive.gsu.edu/chemistry_theses/55.

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Near-infrared (NIR) fluorescence imaging has emerged as an attractive non-invasive approach for direct visualization of diseases which depends on the development of stable, highly specific and sensitive optical probes. The NIR region of the electronic spectrum offers a reduction in the background autofluorescence and an increase in the tissue penetration depth. Cyanine dyes have often been considered promising contrast optic agents owing to their photophysical properties. Herein the synthesis of various penta- and heptamethine benzothiazole cyanine dyes has been described and their in vivo ima
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19

Kilic, Nüzhet Inci. "Graphene Quantum Dots as Fluorescent and Passivation Agents for Multimodal Bioimaging." Thesis, KTH, Tillämpad fysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298302.

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Zero-dimensional graphene (carbon) quantum dots have been drawing attention in bio-related applications since their discovery, especially for their optical properties, chemical stability, and easily modifiable surface.  This thesis focuses on the green synthesis of nitrogen-doped graphene quantum dots (GQDs) for dual-mode bioimaging with X-ray fluorescence (XRF) and optical fluorescence. Both conventional and microwave- (MW-)assisted solvothermal methods were followed to investigate the precursors’ effect on the synthesized GQDs. The MW-assisted method permitted the synthesis of uniform GQDs w
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20

Auger, Christopher. "Biochemical Adaptations in Pseudomonas fluorescens Exposed to Nitric Oxide, an Endogenous Antibacterial Agent." Thesis, Laurentian University of Sudbury, 2014. https://zone.biblio.laurentian.ca/dspace/handle/10219/2203.

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Nitric oxide (NO), a free radical released by macrophages (a subset of white blood cells) as a response to infection, is noxious to organisms due to its ability to disable crucial biomolecules such as lipids, proteins and DNA. Although normally effective at eradicating invading bacteria, several pathogens have developed mechanisms to detoxify NO and its toxic by-products, reactive nitrogen species (RNS). While some of these detoxification processes have been characterized, very little is known about the metabolic changes that enable microbes to survive this deleterious environment. Investigati
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21

Gurfinkel, Mikhail. "Cancer diagnostics using dynamic near-infrared optical imaging and fluorescent contrast agents." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3162.

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A new optical imaging modality has been developed for small animal in vivo imaging of near-infrared fluorescence resulting from fluorescent contrast agents specifically targeted to molecular markers of cancer. The imaging system is comprised of an intensified charge-coupled device (ICCD) for the detection of ultra-low levels of re-emitted fluorescence following the delivery of an expanded beam of excitation light. The design of the ICCD detection system allows for both continuous wave (CW) and frequency-domain modes of operation. Since the accurate acquisition of frequency-domain photon migrat
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22

Poiger, Thomas. "Behavior and fate of detergent-derived fluorescent whitening agents in sewage treatment /." [S.l.] : [s.n.], 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10832.

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23

Anumala, Upendra Rao. "Development of selective fluorescent imaging agents for neurofibrillary tangles in Alzheimer’s diagnosis." Phd thesis, TU Darmstadt, 2013. https://tuprints.ulb.tu-darmstadt.de/3718/1/Thesis_Upendra_Rao_Anumala.pdf.

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Alzheimer’s disease (AD) is a neurodegenerative disorder, a form of dementia that worsens over time. With the number of AD patients rising year by year, the total number of patients has already surpassed more than 25 million and this number will grow closer to 63 million by 2030. Symptoms of this disease include memory loss, challenges in problem solving, trouble in understanding visual images or spatial relationships and problems in speaking and writing. Current methods of detection rely on the minimal mental state examination. This is often inaccurate and cannot differentiate between AD and
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24

Kwon, Sun Kuk. "Dynamic fluorescence imaging with molecular agents for cancer detection." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1064.

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25

Koutnik, Petr. "First Supramolecular Fluorescence-Based Assay for Carbonic Anhydrase Inhibitors." Bowling Green State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1471261858.

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26

Pinho, Sonia Luzia Claro. "Nanoparticules multifonctionelles pour la résonance magnétique et l'imagerie fluorescente." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2011. http://tel.archives-ouvertes.fr/tel-00661206.

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Cette thèse décrit une stratégie de synthèse de nouvelles générations des nanoparticules (NPs) pour applications biomédicales, visant à une amélioration de leurs performances pour l'imagerie, le diagnostic thérapeutique. Ces NPs présentent plusieurs fonctionnalités leur permettant de réaliser des tâches multiples. Deux types de sondes bimodales ont été développés et étudiés afin d'évaluer leur potentiel comme agents (1) de contraste en IRM et (2) luminescents. Ces objetscombinent les propriétés des complexes de lanthanide (Ln3+) et celles des NPs de silice ou de type coeur-écorce Fe2O3SiO2 pou
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27

Udovich, Joshua Anthony. "CONFOCAL MICROENDOSCOPY: CHARACTERIZATION OF IMAGING BUNDLES, FLUORESCENT CONTRAST AGENTS, AND EARLY CLINICAL RESULTS." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/195003.

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Ovarian cancer is the fifth leading cause of cancer related deaths among women. Early detection improves the chances of survival following diagnosis, and new imaging modalities have the potential to reduce deaths due to this disease. The confocal microendoscope (CME) is a non-destructive in-vivo imaging device for visualization of the ovaries that operates in real-time. Two components of the CME system are evaluated in this paper, and initial results from an ongoing clinical trial are presented.Fiber-optic imaging bundles are used in the CME imaging catheter to relay images over distances of u
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28

GAY, JENNIFER KATHRIN. "METROLOGICAL AND INSTRUMENTAL EVALUATION CONTROL OF WHITE SAMPLES TREATED WITH FLUORESCENT WHITENING AGENTS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2004. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=5074@1.

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FINANCIADORA DE ESTUDOS E PROJETOS<br>MINISTÉRIO DA CIÊNCIA E TECNOLOGIA<br>A avaliação de artigos brancos tratados com alvejantes ópticos, como eles são comuns em substratos têxteis, plásticos e de papel, é uma tarefa que tradicionalmente resulta em muitas divergências entre avaliações visuais realizadas em uma cabine padronizada e avaliações instrumentais realizadas com espectrofotômetros de refletância. Mesmo entre as avaliações visuais ou entre as avaliações instrumentais são encontradas diferenças muito além do aceitável. Uma das principais causas é a fluorescência dos alvejantes
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29

Afolabi, Fatai. "Synthesis of novel fluorescence cationic gold(I) complexes as potent anti-cancer agent." Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/80482/.

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30

Machado, Camila Moreira. "Análise do efeito de adição do marcador Rodamina B em propriedades mecânicas de sistemas adesivos não simplificados." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/25/25148/tde-14042015-101804/.

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Este estudo in vitro avaliou o efeito da adição de rodamina B dissolvida em etanol nas concentrações de 0,02mg/mL e 0,10mg/mL, nas propriedades mecânicas dos sistemas adesivos não simplificados considerados padrão-ouro. 96 coroas de terceiros molares humanos hígidos foram seccionadas transversalmente no terço oclusal para remoção do esmalte e exposição da dentina. Os espécimes foram divididos de acordo com os sistemas adesivos Adper Scotchbond Multi-Purpose (MP) - convencional de três passos ou Clearfil SE Bond (SE) - autocondicionante de dois passos: MP-C e SE-C (MP e SE controles); MP-C1 e S
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31

Durand, Marie-José Vasseur Paule. "7-ALKYLGUANINES ET LEURS DERIVES FLUORESCENTS COMME BIOMARQUEURS D'EXPOSITION AUX AGENTS ALKYLANTS /." [S.l.] : [s.n.], 1993. ftp://ftp.scd.univ-metz.fr/pub/Theses/1993/Durand.Marie_Jose.SMZ938.pdf.

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32

Durand-Thouand, Marie-José. "7-alkylguanines et leurs dérivés fluorescents comme biomarqueurs d'exposition aux agents alkylants." Metz, 1993. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1993/Durand.Marie_Jose.SMZ938.pdf.

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Les fluides biologiques comme les sucs gastriques peuvent contenir des substances génotoxiques ou leurs précurseurs qui joueraient un rôle dans le développement des cancers. Parmi ces composés se trouvent de nombreux agents alkylants. Les adduits majeurs produits par ces agents sont sur la position n7 de la désoxyguanosine de l'ADN. Ces adduits sont instables, l'ADN peut être facilement dépuriné pour donner les n7-alkylguanines correspondantes. De l'ADN de thymus de veau est incubé avec des sucs gastriques nitrosés chimiquement. Les 7-alkylguanines contenues dans le surnageant de dépurination
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33

Leung, Ho-hon Arthur, and 梁浩瀚. "Lanthanide complexes for magnetic resonance imaging (MRI) contrast agents and fluorescence probes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47752774.

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In this work, novel Gd(III) complexes endowed with non-steroidal anti-inflammatory drugs (NSAIDs) were synthesised and their targeting properties towards sites of inflammation were studied in U87 xenograft and rheumatoid arthritis animal models. The Tb(III) analogues were also synthesised and their photophysical properties were studied. Six new Gd(III) DO3A-amide complexes bearing different linkers, ethylenediamine (GdL1), hexamethylenediamine (GdL2), 2,2’-oxydiethylamine (GdL3), 4,7,10-trioxa-1,13-tridecanediamine (GdL4), trans-1,4-cyclohexanediamine (GdL5), and 1,4-phenylenediamine (GdL6)
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34

Bates, Ashley H. "Fluorescence studies of the interactions between anthracycline anticancer agents and biopolymers." Thesis, Heriot-Watt University, 1989. http://hdl.handle.net/10399/931.

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35

Davies, Laura Helen. "Air-stable fluorescent primary phosphines and their potential applications as precursors for disease imaging agents." Thesis, University of Newcastle upon Tyne, 2013. http://hdl.handle.net/10443/2287.

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The low air stability of many primary phosphines has made them an under-utilised class of ligand, however they are versatile starting materials due to the possibility of functionalising the weak phosphorus hydrogen bonds, which can lead to a library of new phosphorus compounds. The work presented herein details the synthesis of the first air-stable fluorescent primary phosphines based on the fluorophore Bodipy (Chapter 2). The primary phosphines are shown to be air-stable in solution and in the solid state by 31P NMR spectroscopy and by DFT computational analysis, which is in accord with our g
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36

Norouzi, Neil. "Synthesis and application of novel near infrared cyanine dyes and optical imaging agents." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/10002.

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The use of fluorescent imaging probes for the real time detection of cellular malfunctions, such as enzyme over expression has shown promise. Fluorescent dyes with absorption and emission values below 600 nm are limited in their in vivo applications due to high background auto-fluorescence and low resolution images. Employing near infrared (NIR) fluorophores such as cyanine dyes can overcome this disadvantage. Cyanine dyes can be synthesised using solution or solid-phase techniques with the use of solution phase chemistry allowing for larger scale and higher yielding reactions. Utilising a sel
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37

Brimecombe, Melissa Jane. "The effect of introduced Pseudomonas fluorescens strains on nitrogen dynamics in the rhizosphere of crop plants." Thesis, University of Surrey, 1999. http://epubs.surrey.ac.uk/842952/.

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The primary aim of this study was to investigate the effects of seed inoculation with the biocontrol agent Pseudomonas fluorescens strain F113 (producing the antibiotic DAPG) and its modified derivative strain F113G22 (with DAPG production disrupted) on the uptake of nitrogen by pea and wheat plants. Uptake of N by the two plant species was investigated in soil microcosms amended with 15N-labelled fertilisers (urea or ammonium nitrate) or 15N-labelled plant residues. Uptake of fertiliser-N was unaffected by inoculation. However, uptake of N derived from organic residues was enhanced in pea ino
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38

Ramiah, Vernon. "Tagged polymers as recognition agents." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16414.

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Thesis (MSc)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: Chemical and molecular tagging agents have illustrated their diversity in a number of different applications. One of the most significant applications includes the use of chemical tagging agents for product registration in industry. Industrial enterprises producing good products need to ensure product authenticity to prevent duplication through piracy and unscrupulous industrialists. Fluorescent probes are chemical compounds that satisfy most of the technical and commercial aspects that are required to be excellent taggi
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Badosa, Romañó Esther. "Anàlisi polifàsica de soques de "Pseudomonas fluorescens" potencials agents de biocontrol de malalties de fruiters." Doctoral thesis, Universitat de Girona, 2001. http://hdl.handle.net/10803/7779.

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Molts bacteris del grup fluorescent del gènere Pseudomonas són capaços de controlar malalties de les plantes causades per fongs i bacteris fitopatògens (ACBs) o mostren activitat com a bacteris promotors del creixement de les plantes (BPCPs). S'han descrit diversos metabòlits que intervenen de manera important en la seva activitat com a ACBs i BPCPs entre els quals en destaquen el 2,4-diacetilfloroglucinol (Phl), àcid fenazin-1-carboxílic (PCA), Pirrolnitrina (Prn), àcid cianhídric (HCN), àcid 3-indolacètic (IAA), sideròfors i quitinases.<br/>L'objectiu principal del nostre treball ha estat la
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Romanhole, Rodrigo Collina 1979. "Estudo da fotoestabilidade de filtros solares comerciais quando expostos a radiação ultra-violeta artificial e lâmpadas fluorescentes comerciais." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/312999.

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Orientadores: Priscila Gava Mazzola, Patrícia Moriel<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-26T05:30:45Z (GMT). No. of bitstreams: 1 Romanhole_RodrigoCollina_M.pdf: 2407995 bytes, checksum: a3fd76e8329a74f761c010fad33c4377 (MD5) Previous issue date: 2014<br>Resumo: Filtros solares são moléculas com capacidade de absorver e/ou refletir a radiação UVA e UVB, evitando assim que esta radiação alcance a epiderme ou até mesmo a derme, porém alguns filtros podem apresentar instabilidade quando absorvem a ra
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Strandman, Karolina. "Optiska egenskapers påverkanav möjligheten att trycka eftermålvärden i ISO 12647-2." Thesis, Högskolan Dalarna, Grafisk teknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:du-5098.

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This thesis investigates how the optical properties of paperboard influences printing with targets in ISO 12647-2. The targets for optical properties in ISO 12647-2 are defined for paperboard without optical brightening agents and fluorescent brightening agents wich makes it difficult to reach the targets when printing paperboard containing these agents.Seven different types of paperboard, some with and some without the agents, have been printed and instrumentally andvisually measured to see if there is any deviation from the standard targets and if it shows visually.The result shows that pape
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Tirén, Ström Julia. "Utvärdering av processen vid Hofors vattenverk med avseende på avskiljning av NOM – fällning och membranfilterteknik." Thesis, Institutionen för vatten och miljö, Geokemi och hydrologi, Sveriges lantbruksuniversitet, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-292673.

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De senaste årtiondena har en ökning av naturligt organiskt material (NOM) observerats i ytvatten i norra Europa och Nordamerika. NOM i vattnet innebär utmaningar för vattenverk som använder ytvatten i dricksvattenproduktionen då det kan ge upphov till lukt, smak och färg och svårigheter i driften. För att åtgärda och förebygga problemen behövs mer kunskap om NOM samt hur kvantiteten och sammansättningen förändras i olika reningsprocesser. Vid Hofors vattenverk används råvatten från sjön Hyen i dricksvattenproduktionen. Driftstörningar upplevs i perioder då råvattnets färgtal (mått på halten NO
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Stoja, Obradović. "Termodinamička stabilnost binarnih mešovitih micela odabranih homologa iz grupa Brij surfaktanata i polisorbata." Phd thesis, Univerzitet u Novom Sadu, Medicinski fakultet u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=104920&source=NDLTD&language=en.

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Uloga micela u razvoju farmaceutskih oblika zasniva se na njihovom potencijalu da kao transportni sistemi povećaju bioraspoloživost lekovite supstance i unaprede njen farmakokinetski profil. Micele mogu da modifikuju propustljivost biolo&scaron;kuh membrana, omoguće kontrolisano oslobađanje lekovite supstance iz farmaceutskog oblika, stabilizuju lekovitu supstancu, itd. Kombinovanje različitih surfaktanata kao gradivih jedinica omogućava konstruisanje micela sa poželjnim fizičko-hemijskim karakteristikama. Takođe, me&scaron;ovite micele između čijih gradivnih jedinica postoje sinergističke int
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Pujol, Abajo Marta. "Development of molecular monitoring methods and assessment of the environmental fate of the biological control agent of fire blight Pseudomonas fluorescens EPS62e." Doctoral thesis, Universitat de Girona, 2006. http://hdl.handle.net/10803/7928.

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Pseudomonas fluorescens EPS62e es va seleccionar com a agent de biocontrol del foc bacterià per la seva eficàcia en el control de Erwinia amylovora. En aquest treball es van desenvolupar mètodes de traçabilitat que van permetre la seva detecció específica i quantificació. Mitjançant les tècniques RAPD i U-PCR es van obtenir fragments d'amplificació diferencial per EPS62e que es van seqüenciar i caracteritzar com marcadors SCAR per dissenyar una PCR en temps real. La PCR a temps real es va utilitzar simultàniament amb mètodes microbiològics per estudiar l'adaptabilitat epifítica de EPS62e en po
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Anumala, Upendra Rao [Verfasser], Boris [Akademischer Betreuer] Schmidt, and Harald [Akademischer Betreuer] Kolmar. "Development of selective fluorescent imaging agents for neurofibrillary tangles in Alzheimer’s diagnosis / Upendra Rao Anumala. Betreuer: Boris Schmidt ; Harald Kolmar." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2013. http://d-nb.info/1108093981/34.

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Heiler, Carolin [Verfasser], and C. [Akademischer Betreuer] Barner-Kowollik. "Photo-Induced Formation of Fluorescent Single Chain Polymer Nanoparticles as Imaging agents in Biology / Carolin Heiler ; Betreuer: C. Barner-Kowollik." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/1182430600/34.

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Leclerc, Éric. "Photochimie de la lignine et inhibition de la réversion par des agents fluorescents : effets spectraux et simulation moléculaire /." Thèse, Trois-Rivières : Université du Québec à Trois-Rivières, 2002. http://www.uqtr.ca/biblio/notice/resume/03-2238731R.html.

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Leclerc, Éric. "Photochimie de la lignine et inhibition de la réversion par des agents fluorescents : effets spectraux et simulation moléculaire." Thèse, Université du Québec à Trois-Rivières, 2002. http://depot-e.uqtr.ca/2586/1/000693448.pdf.

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Gustafsson, Coppel Ludovic. "Whiteness and Fluorescence in Paper : Perception and Optical Modelling." Licentiate thesis, Mittuniversitetet, Institutionen för naturvetenskap, teknik och matematik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-12143.

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This thesis is about modelling and predicting the perceived whiteness of plain paper from the paper composition, including fluorescent whitening agents. This includes psycho-physical modelling of perceived whiteness from measurable light reflectance properties, and physical modelling of light scattering and fluorescence from the paper composition. Existing models are first tested and improvements are suggested and evaluated. The standardised and widely used CIE whiteness equation is first tested on commercial office papers with visual evaluations by different panels of observers, and improved
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Scelle, Jérémy. "Polyrotaxanes de cyclodextrines pour des applications biomédicales." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066630/document.

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Ce projet de thèse s'inscrit dans une dynamique de développement des polyrotaxanes de cyclodextrines pour des applications biomédicales. L'objectif est d'obtenir, par une approche modulaire et convergente, des polyrotaxanes fonctionnalisés pour l'imagerie par microscopie optique dans le proche infrarouge et l'IRM. Une bibliothèque de cyclodextrines fonctionnalisées a été générée par CuAAC entre des fluorophores (BODIPY, Cyanine) ou un agent de contraste (monoamide-DOTA-Gd) et des ?-cyclodextrines mono- ou bis-azotures. Leurs propriétés d'auto-assemblage ont été étudiées sur un axe court et ont
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