Avancerad sökning

Hittade 4 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Surface force studies of association phenomena at solid-liquid interfaces

    Författare :Andra Dedinaite; KTH; []
    Nyckelord :;

    Sammanfattning : The main topics of this thesis, association phenomena inbulk and at solid-liquid interfaces in polar and non-polarmedia, were studied by a range of methods. Direct forcemeasurements employing the interferometric surface forceapparatus (SFA) was the chief technique. LÄS MER

  3. 2. Polyelectrolytes on Surfaces and their Complexes with Surfactants, Thermodynamics versus kinetics

    Författare :Yulia Samoshina; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysikalisk kemi; Polymer technology; Physical chemistry; SDS; amphiphilic polyelectrolytes; ellipsometry; reversibility; kinetics of adsorption; polyelectrolytes at solid-liquid interface; polyelectrolyte-oppositely charged surfactant complexes; biopolymers; Polymerteknik;

    Sammanfattning : The interfacial properties of polyelectrolytes, mainly cationic with various content of amphiphilic groups, and their complexes with an oppositely charged surfactant, sodium dodecyl sulfate (SDS), have been investigated using time-resolved ellipsometry. This thesis focuses on the kinetics and reversibility aspects of polymer adsorption and the control of the adsorption by regulating the electrostatic interactions. LÄS MER

  4. 3. Adsorption of biopolymers and their layer-by-layer assemblies on hydrophilic surfaces

    Författare :Maria Lundin; Eva Blomberg; Thomas Arnebrant; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Layer-by-layer; multilayer; adsorption; biopolymers; Chitosan; Heparin; Mucin; Albumin; Lysozyme; β-casein; SDS; QCM-D; Ellipsometri; DPI; TIRF; FRET; SFA; layer structure; solvent content; vertical diffusion; exponential growth; solid-liquid interface; deposition conditions; Surface and colloid chemistry; Yt- och kolloidkemi;

    Sammanfattning : It is widely known that surfaces play an important role in numerous biological processes and technological applications. Thus, being able to modify surface properties provides an opportunity to control many phenomena occurring at interfaces. LÄS MER

  5. 4. Dynamic interactions of interfacial polymers

    Författare :Mark Plunkett; KTH; []
    Nyckelord :surface chemistry dynamic polymer interactions QCM AFM MASIF surface forces adhesion friction;

    Sammanfattning : The relationship between the amount and conformation of apolymer at the solid-liquid interface, and the resultinginteraction forces between two such surfaces has beeninvestigated. With a degree of control of the polymerconformation, by varying the temperature, solvent quality,polymer charge density etc, it has been possible to measure andinterpret the resulting changes in the surface interactions. LÄS MER