Search for dissertations about: "DLS"

Showing result 1 - 5 of 35 swedish dissertations containing the word DLS.

  1. 1. Scattering Studies of Macromolecules in Solution

    Author : David Löf; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bacteriophage lambda; Dynamic Light Scattering; Time-Resolved; Mixed Micelles; Nonionic Surfactant; Triblock Copolymer; Calorimetry; SLS; Rheology; DLS; SAXS;

    Abstract : The sphere-to-rod transition of nonionic micelles of the PEO-PPO-PEO triblock copolymer P123 and the surfactant C12EO6 was studied using dynamic and static light scattering, small angel X-ray scattering, rheology and calorimetry. The transition temperature was dependent of the C12EO6/P123 molar ratio, which means that a larger content of C12EO6 yields a higher transition temperature. READ MORE

  2. 2. Hydrolytic Synthesis and Physicochemical Properties of TiO2 Nanoparticles: Fundamentals and Applications

    Author : Jenny Perez-Holmberg; Göteborgs universitet.; Gothenburg University.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Titanium dioxide TiO2 ; Nanoparticles; Synthesis; Hydrolysis; Titanium tetrachloride TiCl4 ; Anatase; Brookite; DLS; ES-SMPS; XRD; Collective diffusion; Interfacial processes;

    Abstract : Titanium dioxide (TiO2) nanoparticles were synthesized via the hydrolysis of TiCl4 in order to produce clean, surfactant-free oxide surfaces. By controlling the synthesis and aging conditions, stable particles with well-defined size distributions were obtained. READ MORE

  3. 3. Synchrotron X-ray Scattering and Monte Carlo Simulations of Structure and Forces in Silicate Nanoplatelet Dispersions

    University dissertation from Lund University, Center for Chemistry and Chemical Engineering, Theoretical Chemistry

    Author : Mo Segad; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; SAXS; MC simulations; Swelling; Tactoids; EXAFS; DLS; Cryo-TEM; Nanoplatelets; MX80; Na Ca montmorillonite.;

    Abstract : Clays are the world’s most widely used natural material, however, little is known regarding the microstructure as well as the forces involved in clay-water interactions, and their influence on the swelling properties. The utilization of clay platelets is nowadays a key in a number of biological and industrial applications e.g. READ MORE

  4. 4. Formulation and characterization of W/O nano-dispersions for bioactive delivery applications

    University dissertation from Örebro : Örebro university

    Author : Maria D. Chatzidaki; Örebro universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nano-dispersions; encapsulation; food; DLS; EPR; Cryo-TEM; SAXS; pH-stat; digestion; antioxidants; gastric lipase; pancreatic lipase; Kemi; Chemistry;

    Abstract : The main objective of this study was the formulation of food-grade water-in-oil (W/O) nano-dispersions based mainly on medium or long-chain triglycerides. Two types of dispersions were formulated and structurally compared, namely emulsions and microemulsions. READ MORE

  5. 5. Fate of riverine iron over estuarine salinity gradients

    University dissertation from Lund University

    Author : Simon Herzog; [2018-12]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; iron Fe ; Organic matter; boreal rivers; XAS; DLS; Fe isotope;

    Abstract : Rivers have traditionally not been considered important sources of bioavailable iron (Fe) to the marine waters, since most Fe is lost by salinity-induced aggregation and sedimentation during estuarine mixing. However, recent studies from boreal rivers found a remarkably high Fe stability, probably due to the interaction with organic matter. READ MORE