Sökning: "SANS"

Visar resultat 1 - 5 av 33 avhandlingar innehållade ordet SANS.

  1. 1. Structure-Property Relationships of Surfactants at Interfaces and Polyelectrolyte-Surfactant Aggregates

    Detta är en avhandling från Stockholm : Kemi

    Författare :Mikael Kjellin; KTH.; [2002]
    Nyckelord :nonionic surfactant; sugar surfactant; poly ethylene oxide ; amide; ester; polyelectrolyte; SDS; hydrophobic surface; glass surface; mica; adsorption; aggregation; micelle size; surface forces; wetting; dynamic surface tension; NMR; TRFQ; SANS; SAXS; ;

    Sammanfattning : 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. LÄS MER

  2. 2. Association and Interactions in Protein-Surfactant Systems

    Detta är en avhandling från Håkan Wennerström, Physical Chemistry 1, Chemical Centre Lund University

    Författare :Anna Stenstam; Lund University.; Lunds universitet.; [2003]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; catanionic surfactant; SANS; NMR; gel; sodium alkylsulfate; Protein-surfactant interactions; lysozyme; LH2; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : Aggregation in protein-surfactant systems have been studied with the ambition of reaching a deeper understanding of the balance of the interaction forces involved. A pure system with maximized electrostatic interactions has been used. LÄS MER

  3. 3. Salting-out of Colloidal Latex Particles Grafted with Poly(ethylene glycol)

    Detta är en avhandling från Göteborgs universitet

    Författare :Kristin Jonsson; Göteborgs universitet.; Gothenburg University.; [2020]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PEG; fluorinated colloids; monodisperse spheres; steric stability; emulsion polymerization; SAXS; crosslinking; salting-out; interfacial tension; SANS;

    Sammanfattning : Colloidal particles dispersed in a medium are important both in nature and in industry. The stability of colloidal particles is determined by the interactions between them and can be improved by steric stabilization. There is no conclusive understanding of how these sterically stabilized particles become unstable. LÄS MER

  4. 4. Plant aquaporin regulation: Structural and functional studies using diffraction and scattering techniques

    Detta är en avhandling från Göteborgs universitet

    Författare :Michael Järvå; Göteborgs universitet.; Gothenburg University.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; X-ray Crystallography; Membrane protein; Plasma membrane intrinsic protein; Aquaporin; pH gating; mercury; proteoliposome assay; water transport; SANS; SAXS; WAXS; nanodisc; liposome;

    Sammanfattning : Water is the basis for life as we know it. It is only logical then that all organisms have evolved specialized proteins, aquaporins, which regulate water flow across their membranes. Plants, which are immobile, depend more on their environment and also use water flows to move, to breathe, and to grow. LÄS MER

  5. 5. An Investigation of Thermogelling Aqueous Systems of Ethyl(HydroxyEthyl)Cellulose and Ionic Surfactants

    Detta är en avhandling från Department of Food Technology, Lund University

    Författare :Katarina Lindell; [1996]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polymer-polymer association; HS-DSC; SANS; solubilization; dexamethasone; timolol maleate; in vitro release; thermoreversible gelation; phase diagram; cloud point; Ethyl hydroxyethyl cellulose; ionic surfactants; Livsmedelsteknik; Food and drink technology;

    Sammanfattning : Aqueous solutions of a particular type of the nonionic cellulose derivative ethyl(hydroxyethyl)cellulose (EHEC) may form thermoreversible gels in the presence of ionic surfactants. Low-viscous solutions can be transformed to clear, stiff gels as the temperature is increased. LÄS MER