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Tesis sobre el tema "Light angular scattering spectroscopy"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 2 de febrero de 2022

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1

Hillman, Timothy R. "Microstructural information beyond the resolution limit : studies in two coherent, wide-field biomedical imaging systems." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0085.

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2

Šćepanović, Obrad R. 1980. "Light scattering spectroscopy clinical imaging device implementation." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/87887.

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3

Järvinen, Emma [Verfasser]. "Investigations of Angular Light Scattering by Complex Atmospheric Particles / Emma Järvinen." Karlsruhe : KIT Scientific Publishing, 2016. http://www.ksp.kit.edu.

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4

Backman, Vadim 1973. "Early diagnosis of cancer using light scattering spectroscopy." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/29892.

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Thesis (Ph. D.)--Harvard--Massachusetts Institute of Technology Division of Health Sciences and Technology, 2001.<br>Includes bibliographical references.<br>This thesis presents a novel optical technique, light scattering spectroscopy (LSS), developed for quantitative characterization of tissue morphology as well as in vivo detection and diagnosis of the diseases associated with alteration of normal tissue structure such as precancerous and early cancerous transformations in various epithelia. LSS employs a wavelength dependent component of light scattered by epithelial cells to obtain informa

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5

Monem, A. S. M. A. "Angular light scattering from phospholipid vesicles and the effect of magnetic fields." Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373565.

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6

Barnett, David M. "On multiple optical scattering in a scanning nephelometer." Thesis, Boston Spa, U.K. : British Library Document Supply Centre, 2000. http://ethos.bl.uk/OrderDetails.do?did=1&uin=uk.bl.ethos.323870.

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7

Thapa, Nabin K. "Characterizing Liquid-Fluid Interfaces Using Surface Light Scattering Spectroscopy." Kent State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent1564059703319064.

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8

Kolevzon, Vladimir. "Surface Light Scattering Spectroscopy of the Gallium Liquid-Vapor Interface." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-31647.

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Surface Light Scattering Spectroscopy of the Gallium Liquid-Vapor Interface Vladimir Kolevzon Abstract High frequency capillary waves at liquid Ga surface have been studied by means of quasielastic light scattering spectroscopy. The observed frequencies and damping constants of waves differed greatly from classical theoretical treatment of liquid Ga surface as that of a simple liquid. This effect was explained due to the presence of the surface layer, possessing visco-elastic properties extracted, for the first time, from the fit of experimental spectra with an appropriate theoretical form. Ne

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9

Macfadyen, Allan John. "Photon correlation spectroscopy and electrophoretic light scattering using optical fibres." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277140.

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10

Lau, Condon. "Differential light scattering spectroscopy measurements for detecting and imaging cancer." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35666.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.<br>Includes bibliographical references.<br>Optical spectroscopy show great promise for diagnosing the earliest stages of cancer. Light scattering spectroscopy (LSS), the study of single elastic backscattering as a function of wavelength and angle, can detect subcellular structural changes in early cancer. We have developed two novel differential light scattering spectroscopy techniques, space differential LSS (SD/LSS) and b-angle differential LSS (/LSS), for detecting the single backscattering signal f

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11

Kolevzon, Vladimir. "Surface Light Scattering Spectroscopy of the Gallium Liquid-Vapor Interface." Forschungszentrum Rossendorf, 1996. https://hzdr.qucosa.de/id/qucosa%3A21991.

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Surface Light Scattering Spectroscopy of the Gallium Liquid-Vapor Interface Vladimir Kolevzon Abstract High frequency capillary waves at liquid Ga surface have been studied by means of quasielastic light scattering spectroscopy. The observed frequencies and damping constants of waves differed greatly from classical theoretical treatment of liquid Ga surface as that of a simple liquid. This effect was explained due to the presence of the surface layer, possessing visco-elastic properties extracted, for the first time, from the fit of experimental spectra with an appropriate theoretical form. Ne

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12

Courtney, Peter R. "Correlation techniques for application in photon correlation spectroscopy." Thesis, University of Manchester, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237235.

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13

Dahlgren, Eric D. "Small angle light scattering analysis of tissue." Link to electronic thesis, 2002. http://www.wpi.edu/Pubs/ETD/Available/etd-0111102-171921.

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14

Jefferies, J. P. F. "Multipassed Fabry-Perot spectroscopy and its Fourier analysis." Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375074.

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15

Campbell, Dawn M. "Light scattering study of attractive interactions in a model microemulsion system /." Online version of thesis, 1992. http://hdl.handle.net/1850/10697.

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16

Paladugula, Jithendar. "Parallelization of light scattering spectroscopy and its integration with computational grid environments." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0005280.

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17

Bassan, Paul. "Light scattering during infrared spectroscopic measurements of biomedical samples." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/light-scattering-during-infrared-spectroscopic-measurements-of-biomedical-samples(a2a41f54-0e61-443a-bd32-faf8f65806a7).html.

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Infrared (IR) spectroscopy has shown potential to quickly and non-destructively measure the chemical signatures of biomedical samples such as single biological cells, and tissue from biopsy. The size of a single cell (diameter ~10-50 µm) are of a similar magnitude to the mid-IR wavelengths of light (~1-10 µm) giving rise to Mie-type scattering. The result of this scattering is that chemical information is significantly distorted in the IR spectrum.Distortions in biomedical IR spectra are often observed as a broad oscillating baseline on which the absorbance spectrum is superimposed. A spectral

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18

Bassi, Andrea Li. "X-ray and light scattering from nanostructured thin films." Thesis, Durham University, 2000. http://etheses.dur.ac.uk/4631/.

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The object of this thesis is the study of nanostructured thin films using inelastic fight scattering and elastic x-ray scattering techniques. Their use in combination with other techniques is a powerful tool for the investigation of nanostructured materials. X-ray, Raman and Brillouin characterisation of cluster-assembled carbon films, promising for applications in the field of catalysis, hydrogen storage and field emission, is here presented. X-ray reflectivity (XRR) provided a measure of the density. Raman spectroscopy showed that the local bonding in these amorphous films depends on the siz

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19

Dorrington, Glen. "Examining biological systems at a molecular level via polarised light spectroscopy and scattering turbidity." Thesis, University of Warwick, 2016. http://wrap.warwick.ac.uk/106536/.

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During the course of this work the development and optimisation of the dichroism field of spectroscopic techniques regarding their application towards living biological systems has been examined. To this end we have studied the theory of light scattering, as one of the principle flaws that can prevent accurate analysis of spectral data. The fields of Rayleigh-Gans-Debye and Mie theory were investigated and implemented into a program for the calculation of scattering for various different systems. The developed program was then optimised using previously collected data regarding the scattering

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20

Peetermans, Joyce Anne. "Brownian motion of macromolecules inside single intact biological cells : microscope laser light scattering spectroscopy." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/15178.

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21

Higgs, D. M. J. "An investigation into the measurement of particle size in concentrated dispersions by means of angular dependent light scattering." Thesis, University of Leeds, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234795.

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22

Zhang, Fan. "Theoretical examinations of optical tomography through scattering medium." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/28681/.

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Optical tomography is considered to be a non-invasive and non-ionising technique that can create a digital volumetric model of an object by reconstructing 3D images made from light transmitted and scattered through the object. It is becoming of increasing importance in the area of tissue engineering and biomedical diagnostics. The main limit of pure optical techniques is the heavy scattering of tissue, which causes a poor imaging resolution. Ultrasound modulated optical tomography (USMOT) combines optical and ultrasonic techniques to produce optical contrast at ultrasound resolution. The modul

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23

Carlsson, Sofia. "Surface Characterization ofGram-Negative Bacteria andtheir Vesicles : Using Fourier Transform Infrared Spectroscopy andDynamic Light Scattering." Thesis, Umeå universitet, Kemiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-64292.

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24

Addis, Matthew James. "Transitional metal trilayers and films investigated using Brillouin light scattering and the magneto-optic Kerr effect." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243210.

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25

Kalashnikov, Maxim M. "Validation of angle-resolved polarized light scattering spectroscopy as a diagnostic tool for pre-cancer detection." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/49744.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2009.<br>Vita.<br>Includes bibliographical references.<br>Light scattering spectroscopy has emerged as a valuable diagnostic tool for cancer diagnoses in the past ten years. The interaction of light with cellular structures brings out information about morphological changes accompanying malignancy at early stages. The virtue of this technique is to extract key morphological information such as size distribution of nucleus and submicron-sized particles with minimal data acquisition and model-based data analysis. This en

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26

Milli, J., A. Vigan, D. Mouillet, A. M. Lagrange, J. C. Augereau, C. Pinte, D. Mawet, et al. "Near-infrared scattered light properties of the HR 4796 A dust ring." EDP SCIENCES S A, 2017. http://hdl.handle.net/10150/623201.

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Context. HR4796A is surrounded by a debris disc, observed in scattered light as an inclined ring with a high surface brightness. Past observations have raised several questions. First, a strong brightness asymmetry detected in polarised reflected light has recently challenged our understanding of scattering by the dust particles in this system. Secondly, the morphology of the ring strongly suggests the presence of planets, although no planets have been detected to date. Aims. We aim here at measuring with high accuracy the morphology and photometry of the ring in scattered light, in order to d

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27

Lewis, Kristin A. "Development of a dual-wavelength photoacoustic instrument for measurement of light absorption and scattering by aerosol and gases." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3258842.

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28

Chang, Yuan-Pin. "Novel probes of angular momentum polarization." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:d3880edf-436a-415e-8a74-6b1c0fd26e65.

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New dynamical applications of quantum beat spectroscopy (QBS) to molecular dynamics are employed to probe the angular momentum polarization effects in photodissociation and molecular collisions. The magnitude and the dynamical behaviour of angular momentum alignment and orientation, two types of polarization, can be measured via QBS technique on a shot-by-shot basis. The first part of this thesis describes the experimental studies of collisional angular momentum depolarization for the electronically excited state radicals in the presence of the collider partners. Depolarization accompanies bot

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29

Tarcea, Nicolae [Verfasser], and Jürgen [Akademischer Betreuer] Popp. "Light as a universal tool : Microcapsule sizing by elastic light scattering and mineral investigation by in situ Raman spectroscopy / Nicolae Tarcea. Betreuer: Jürgen Popp." Würzburg : Universität Würzburg, 2004. http://d-nb.info/1099791316/34.

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30

Plaster, Bradley R. (Bradley Robert) 1976. "Dynamic light scattering and diffusing wave spectroscopy studies of the microscopic dynamics of polystyrene latex spheres suspened in glycerol." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/36673.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 1999.<br>Includes bibliographical references (leaf 50).<br>The dynamics of polystyrene latex spheres [650 A radius] suspended in glycerol have been studied using the techniques of dynamic light scattering in the single scattering limit and diffusing wave spectroscopy in the multiple scattering regime using a charge coupled device [CCD] camera as our detector. Our experiments, which investigated suspensions of various concentrations [0.001</=0</=0.075], extended over length scales ranging from q = 0.00015 A to q = 0.00071 A

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31

Flückiger, Leonie [Verfasser], Thomas [Akademischer Betreuer] Möller, and Tim [Akademischer Betreuer] Laarmann. "Dynamics of single clusters in intense light pulses studied with ion spectroscopy and light scattering / Leonie Flückiger. Betreuer: Thomas Möller. Gutachter: Thomas Möller ; Tim Laarmann." Berlin : Technische Universität Berlin, 2015. http://d-nb.info/1077818696/34.

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32

Montgomery, Patrick D. "MAGNETO-OPTICAL PROPERTIES OF THIN PERMALLOY FILMS: A STUDY OF THE MAGNETO-OPTICAL GENERATION OF LIGHT CARRYING ANGULAR MOMENTUM." UKnowledge, 2018. https://uknowledge.uky.edu/ece_etds/126.

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Magneto-optical materials such as permalloy can be used to create artificial spin- ice (ASI) lattices with antiferromagnetic ordering. Magneto-optical materials used to create diffraction lattices are known to exhibit magnetic scattering at the half- order Bragg peak while in the ground state. The significant drawbacks of studying the magneto-optical generation of OAM using x-rays are cost, time, and access to proper equipment. In this work, it is shown that the possibility of studying OAM and magneto-optical materials in the spectrum of visible light at or around 2 eV is viable. Using spectro

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33

Liukaityte, Simona. "Nouvelle métrologie large bande à grande dynamique pour la mesure des flux transmis, réfléchis et diffusés par des filtres optiques à hautes performances." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4351.

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De nombreux efforts fournis sur l’avancement de la technologie de dépôt afin de répondre au besoin des utilisateurs des filtres interférentiels ont donné la naissance à la nouvelle génération des composants optiques. Les progrès techniques permettent de fabriquer les filtres avec la structure particulièrement complexe et atteindre les performances spectrales remarquables, mais aussi soulèvent de nouveaux problèmes au niveau de la diffusion. Les indicatrices de diffusion de ces filtres présentent les variations extrêmement rapides en fonction de l’angle de reprise et de la longueur d’onde, ce q

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34

Castorano, Nicholas Joseph. "The Structure and Dynamics of Diacetylene-Lipid Langmuir Monolayers." Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1279558411.

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35

Cheng, Juan. "Light scattering study on phase transition and micro-heterogeneity in relaxor ferroelectrics (1-x)Pb(Mg₁/₃Nb₂/₃)O₃-xPbTiO₃ and (1-x)Pb(Zn₁/₃Nb2₂/₃)O₃-xPbTiO₃ /." access full-text access abstract and table of contents, 2009. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?phd-ap-b23749179f.pdf.

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Thesis (Ph.D.)--City University of Hong Kong, 2009.<br>"Submitted to Department of Physics and Material Sciences in partial fulfillment of the requirements for the degree of Doctor of Philosophy." Includes bibliographical references (leaves 140-167)

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36

Kätzel, Uwe. "Dynamic Light Scattering for the Characterization of Polydisperse Fractal Systems by the Example of Pyrogenic Silica." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2007. http://nbn-resolving.de/urn:nbn:de:swb:14-1197634640783-66357.

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Dynamic light scattering (DLS) is a method to size submicron particles by measuring their thermal motion (diffusion) in suspensions and emulsions. However, the validity of the Stokes-Einstein equation that relates the diffusion coefficient and the particle size is limited to spherical particles and very low concentrations. Within this thesis, DLS is used for the characterization of suspensions of pyrogenic silica which consists of fractal-like aggregates composed of sintered spherical primary particles. These structural features clearly complicate the understanding of DLS experiments and have

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37

Hartschuh, Ryan D. "Optical Spectroscopy of Nanostructured Materials." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1195016254.

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38

Townsend, Peter Stephen Morris. "Diffusion of light adsorbates on transition metal surfaces." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/274001.

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Helium-3 surface spin echo spectroscopy (HeSE) has been used to measure the diffusive dynamics of adsorbates on close-packed metal surfaces, namely hydrogen on Cu(111), Pd(111) and Ru(0001), carbon and oxygen on Ru(0001), and oxygen on Cu(111). Chapter 2 reviews the HeSE technique and describes the relevant dynamical models and statistical methods used to interpret data in later chapters. The performance of the ionizing detector is analysed, with a focus on the signal-to-noise ratio. In Chapter 3 expressions for the classical intermediate scattering function (ISF) are introduced for open and c

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39

Pardaev, Shokir A. "LIGHT SCATTERING STUDIES OF DEFECTS IN NEMATIC/TWIST-BEND LIQUID CRYSTALS AND LAYER FLUCTUATIONS IN FREE-STANDING SMECTIC MEMBRANES." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1497022792130101.

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40

Nonoyama, Akihisa. "Using Multiwavelength UV-Visible Spectroscopy for the Characterization of Red Blood Cells: An Investigation of Hypochromism." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000508.

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41

Pilgrová, Tereza. "Vliv podmínek přípravy na solubilizační vlastnosti a stabilitu komplexů biopolymer-tenzid." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2012. http://www.nusl.cz/ntk/nusl-216814.

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Influence of the preparing of a biopolymer-surfactant system on its solubilization properties and stability was investigated by using fluorescence spectroscopy and dynamic light scattering methods. Investigation was made on complex of native hyaluronan with cationic surfactant cetyltrimethylammonium bromide (CTAB). System has been studied in aqueous and in saline solutions. The effect of temperature of stock solutions and freezing effect on subsequent properties were investigated. Further was examinated, what effect has a way of introducing fluorescent probe into the system on subsequent solub

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42

Sharifian, Gh Mohammad. "Adsorption and Transport of Drug-Like Molecules at the Membrane of Living Cells Studied by Time-Resolved Second-Harmonic Light Scattering." Diss., Temple University Libraries, 2018. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/524558.

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Chemistry<br>Ph.D.<br>Understanding molecular interactions at the surfaces of cellular membranes, including adsorption and transport, is of fundamental importance in both biological and pharmaceutical studies. At present, particularly with respect to small and medium size (drug-like) molecules, it is desirable to gain an understanding of the mechanisms that govern membrane adsorption and transport. To characterize drug-membrane interactions and mechanisms governing the process of molecular uptake at cellular membranes in living organisms, we need to develop effective experimental techniques to

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43

Dunkhorst, Kirsten. "Diffusionsmessungen an Polyethylenglykolen mittels PFG-NMR-Spektroskopie und dynamischer Lichtstreuung / Diffusion measurements of poly(etylene glycol) in solution by Pulsed Field Gradient NMR spectroscopy and Dynamic Light Scattering." Gerhard-Mercator-Universitaet Duisburg, 2005. http://www.ub.uni-duisburg.de/ETD-db/theses/available/duett-05052005-170324/.

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The Pulsed Field Gradient (PFG) NMR spectroscopy was uesd to determine, via the diffusion coefficient, the molecular weights and the molecular weight distributions for sampels of poly(etylene glycol) (PEG) in D2O. Additional it was investigated, whether the components of mixtures of poly(ethylene glycol) with different molecular weights could be quantitatively determined by the differences in diffusion coefficient. The results of this study are compared with the result of the Dynamic Light Scattering (DLS) technique, the standard methode for the determination of molecular weights. The PFG NMR

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44

Nilsson, Annica M. "Daylighting Systems : Development of Techniques for Optical Characterization and Performance Evaluation." Doctoral thesis, Uppsala universitet, Fasta tillståndets fysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-183307.

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Successful integration of daylighting systems requires the ability to predict their performance for given climates. In this dissertation, a bottom-up approach is applied to evaluate the optical performance of a selection of daylighting systems. The evaluations are based on the optical properties of the included materials, and part of the dissertation focuses on developing new optical characterization methods. The work on characterization techniques uses an integrating sphere method to characterize the transmittance of light scattering samples more accurately. The method's principle is to reduc

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45

Moro, Carlo Frederico. "Comportamento do peptídeo entomotóxico jaburetox-2Ec em solução e a sua interação com lipossomas miméticos de plaquetas humanas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/28438.

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No presente trabalho, o peptídeo inseticida recombinante Jaburetox-2Ec, derivado da urease de Canavalia ensiformis (Jack bean) foi estudado, principalmente através de técnicas de espectroscopia de espalhamento de luz e raios-X. Foi analisada a tendência do peptídeo a se agregar em diferentes condições físico-químicas quando em solução aquosa, e a sua interação com membranas de lipossomas miméticos de plaquetas humanas. A partir dos dados de raio hidrodinâmico, raio de giro, e massa molar ponderal média obtidos do peptídeo em solução, foi possível observar uma tendência para maior agregação num

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46

Lehocká, Nikola. "Agregace hyaluronanu substituovaného palmitoylem." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2018. http://www.nusl.cz/ntk/nusl-376858.

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This thesis deals with the aggregation behaviour of palmitoylhyaluronan in two degrees of substitution, namely 10 % and 16 %. Using a fluorescence spectroscopy method with pyrene as a fluorescence probe, we found a critical micellar concentration. The results were confirmed by measuring the dynamic light scattering, which also showed an increase in the size of aggre-gates with an increasing concentration. System stability is reduced by increased ionic strength as evidenced by zeta potential measurement. Experiments found that 16 % substitution sample can form a gel. The gel is very stiff and h

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47

Lepíková, Jana. "Studium vztahu mezi strukturou a reologickými vlastnostmi hydrogelů na makroskopické i mikroskopické úrovni." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2016. http://www.nusl.cz/ntk/nusl-240575.

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Diploma thesis main goal is to obtain new pieces of knowledge about relationship between hydrogel structures and its flow and transport properties. Thesis is mainly focusing on combining pertinent biopolymers into model hydrogels based on agarose. Then perform correlation of results obtained by diffusion methods, and by rheologic measurements on macroscopic and microscopic level. Properties of hydrogels were measured by selected rheologic measurements, dynamic light scattering method, and correlative fluorescence spectroscopy. From these methods various parameters (MSD modules, values of compl

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48

Dialetachi, Eva Lemmi Giovanini. "Espalhamento dinâmico de luz em sistemas coloidais diluídos." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-20092017-160805/.

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A técnica de Espalhamento Dinâmico de Luz (do inglês Dynamic Light Scattering, ou DLS), também conhecida por técnica de Espectroscopia por Correlação de Fótons (do inglês Photon Correlation Spectroscopy, ou PCS), é amplamente utilizada na caraterização estrutural de sistemas coloidais, fornecendo informações importantes sobre tamanhos ca- ractersticos, tempos de correlação e efeitos de polarização no sistema. A facilidade de execução dos experimentos e praticidade das análises é uma das principais vantagens desta técnica. Especificamente para sistemas diludos compostos por partculas em solução

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Bouloussa-Huynh, Hedi. "Spectroscopie Brillouin dans les couches minces, multicouches et nanostructures magnétiques : étude de l’interaction Dzyaloshinskii-Moriya." Thesis, Paris 13, 2019. http://www.theses.fr/2019PA131025.

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Ce travail vise à étudier, expérimentalement et théoriquement, le comportement des ondes de spin dans des couches ultraminces, multicouches et nanostructures magnétiques en présence de l’interaction Dzyaloshinskii-Moriya d’interface (DMI). A cet effet, nous avons utilisé la spectroscopie Brillouin (BLS) de diffusion inélastique de la lumière comme sonde expérimentale. Cette technique s’est avérée un outil extrêmement efficace pour mesurer la DMI ; effet qui se traduit par une asymétrie des raies Stokes et anti-Stokes d’un spectre BLS d’un système magnétique mince en contact d’un métal lourd pr

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Pihíková, Dominika. "Biopolymerem značené koloidní částice." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2013. http://www.nusl.cz/ntk/nusl-216962.

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The effect of hydrophobically modified hyaluronan on surfactants aggregation has been studied in this master’s thesis. The value of critical micelle concentration of anionic surfactant SDBS (sodium dodecylbenzensulfonate), cationic surfactant CTAB (cetyltrimethylamonnium bromide) and nonionic surfactant Triton X-100 (octylphenol ethoxylate) was determined by fluorescence spectroscopy using pyrene probe. Aggregation behavior of surfactants was performed with addition of hydrophobically modified hyaluronan of two molecular weights (17 kDa, 206 kDa) in aqueous solution. The greatest influence of

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