Sökning: "polyions"

Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet polyions.

  1. 1. Diffusive interactions play an important role in protein stability and mobility : Investigations of the intracellular milieu using in-cell NMR

    Författare :Therese Sörensen; Mikael Oliveberg; Per Jemth; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; in-cell NMR; protein-protein interactions; mobility; stability; thermodynamics; Nuclear Magnetic Resonance; stopped-flow spectroscopy; proteins; SOD1; HAH1; TTHA1718; cells; cytoplasm; humans; bacteria; ions; polyions; electrostatics; biokemi; Biochemistry;

    Sammanfattning : Proteins are crucial for all cellular life. Every signal received by a cell, and every response to it, is mediated by proteins. Inside cells, these proteins diffusively sample each other’s surfaces, as they travel through the cytoplasm in search of their specific interaction partners. LÄS MER

  3. 2. Oppositely Charged Polyelectrolytes in Solution

    Författare :Yoshikatsu Hayashi; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Monte Carlo simulation; analytical theory; Fysikalisk kemi;

    Sammanfattning : This thesis is about the formation of complexes in solutions of oppositely charged polyions. We consider mainly three topics: 1)Monte Carlo simulations of oppositely charged polyelectrolytes with a focus on cluster compositions. LÄS MER

  4. 3. Environmentally Responsive Surface Coatings of Polyion-Surfactant Ion Complex Salts

    Författare :Charlotte Gustavsson; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymer; polyelectrolyte; surfactant; complex salt; surface coatings; phase behaviour; responsivness; hydration; SAXS; water-insoluble; solutes; liquid crystalline structures;

    Sammanfattning : Complexes formed between oppositely charged polyions and surfactant ions are known to have very rich phase behaviour in bulk solution. The work in this thesis investigates the possibilites of using such complexes as surface coatings. LÄS MER

  5. 4. Theoretical and Experimental Studies of Polymer Adsorption and Polymer Mediated Interactions

    Författare :Fei Xie; Beräkningskemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polyelectrolyte; Adsorption; Colloid; Polymer; Dispersion; Interation; Ellipsometry; Monte Carlo Simulation; Classical Density Functional Theory;

    Sammanfattning : Polyelectrolyte adsorption and polymer mediated interactions in different colloidal polymer systems have been studied in this work. Theoretical methods and experimental techniques are combined, in order to obtain more general reliable results, as well as a deep understanding of the molecular mechanisms that are responsible for the observed behaviors. LÄS MER

  7. 5. On the phase behaviour of hydrogels : A theory of macroion-induced core/shell equilibrium

    Författare :Jonas Gernandt; Per Hansson; Göran Frenning; Renko de Vries; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; polymer; polyelectrolyte; surfactant; thermodynamics; elasticity; Pharmaceutical Science; Farmaceutisk vetenskap;

    Sammanfattning : Colloidal macroions are known to interact very strongly with oppositely charged polyionic hydrogels. Sometimes this results in a non-uniform distribution of the macroions within the gel, a phenomenon that is not fully understood. LÄS MER