Sökning: "electrostatic self-assembly"

Visar resultat 6 - 10 av 22 avhandlingar innehållade orden electrostatic self-assembly.

  1. 6. Synthesising colloidal molecules with tunable interactions from soft responsive microgel particles

    Författare :Linda Månsson; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; microgels; polymers; colloids; colloidal synthesis; self-assembly; material scaince; confocal microscopy; light scattering; microgels; polymers; colloids; colloidal synthesis; self-assembly; material science; confocal microscopy; light scattering;

    Sammanfattning : Colloidal self-assembly is an attractive bottom-up approach to new superstructures and materials with new properties. However, the typical spherical shape and isotropic interaction potential limit the repertoire of ordered structures that can be obtained from synthetic colloids. LÄS MER

  3. 7. Self-organization of nanoparticles - implications for interface biology

    Författare :Anders Lundgren; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gold nanoparticles; self-organization; self-assembly; nanostructure; nanopatterns; cell surface interactions; chemical gradients;

    Sammanfattning : Cells bind to their surroundings via proteins displayed on the cell surface. These interactions support the cells and are important for many cellular processes, e.g. cell migration during morphogenesis, wound healing and cancer metastasis. LÄS MER

  4. 8. Electrochemical Studies of Redox Properties and Diffusion in Self-Assembled Systems

    Författare :Johan Kostela; Mats Almgren; Maja Elmgren; Martin Malmsten; Renata Bilewicz; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; electrochemistry; self-assembly; bicontinuos cubic phase; redox potential; diffusion; Fysikalisk kemi; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : In this thesis electron transfer reactions and diffusion of redox molecules in three different types of self-aggregated structures are investigated. Electrochemistry was used to investigate the redox potential and diffusion coefficients for redox active molecules with different polarity. The first aggregate system studied was the micellar phase. LÄS MER

  5. 9. The Interaction between Triblock Copolymers and Surfactants in Dilute Aqueous Solution

    Författare :Jörgen Jansson; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymer technology; biopolymers; Polymerteknik; Physical chemistry; Fysikalisk kemi; Calorimetry; SAXS; DLS; SLS; Light scattering; Structure; Complex; Block copolymer-surfactant interaction; Block copolymer vesicles; Self-assembly; Triblock copolymers; NMR;

    Sammanfattning : The solution properties of dilute aqueous solutions of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymers and their interaction with surfactants have been investigated using static and dynamic light scattering, combined with small angle X-ray scattering, calorimetry and nuclear magnetic resonance techniques. In aqueous solution, the triblock copolymers P123 and F127 (EO20PO68EO20 and EO97PO68EO97, respectively) form micelles with a PPO core and a PEO corona. LÄS MER

  7. 10. Optical properties of nanometer disks, holes and rings prepared by colloidal lithography

    Författare :Per Hanarp; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; colloidal lithography; nanoparticles; nanorings; localized surface plasmon resonance; electrostatic self-assembly; nanofabrication; sub-wavelength holes;

    Sammanfattning : The optical properties of nanostructures prepared by colloidal lithography are studied. Colloidal lithography is a fabrication approach based on a self-assembling pattern definition. An electrostatically self-assembled array of nanoparticles is used as a mask and combined with etching or deposition processes. LÄS MER