Sökning: "cryo-TEM"

Visar resultat 6 - 10 av 32 avhandlingar innehållade ordet cryo-TEM.

  1. 6. Bilayers with Surfactant-induced Pores and Demixing in Micelles Studies of Segregation in Amphiphile Systems

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Mari Kadi; Uppsala universitet.; [2003]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; fluorocarbon surfactants; amphiphile mixtures; perforated bilayers; segregation; NMR; surfactant selective electrode; cryo-TEM; SANS; AFM; Fysikalisk kemi; NATURAL SCIENCES Chemistry Physical chemistry; NATURVETENSKAP Kemi Fysikalisk kemi;

    Sammanfattning : The focus of this thesis has been on the effects of segregation in mixtures of amphiphilic molecules. Two different systems were investigated: fluorocarbon-hydrocarbon surfactant mixtures and lipid-surfactant mixtures. LÄS MER

  2. 7. Association of Amphiphiles and Polyelectrolytes with DNA

    Detta är en avhandling från Physical Chemistry 1, Lund University

    Författare :Yulia S Mel'nikova; Lunds universitet.; Lund University.; [2000]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cryo-TEM; Physical chemistry; SAXS; fluorescence microscopy; DNA condensation; DNA-polyelectrolyte; DNA- amphiphile interactions; Fysikalisk kemi;

    Sammanfattning : DNA- cationic amphiphile and DNA-cationic polymer systems were studied with respect to the intermolecular interactions, as well as structure and stability of formed complexes. The thesis is divided in two parts: one section is a summary and the other section contains five papers. LÄS MER

  3. 8. Development and application of advanced electron microscopy techniques for materials in biological systems

    Detta är en avhandling från Physical Chemistry 1, Lund University

    Författare :Pernilla Nevsten; Lunds universitet.; Lund University.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; EFTEM; multiple-unit drug; EELS; cyanine dye; SSAT; cryo-TEM; virus; TEM; apoptosis; SEM; AFm; α-TCP; apatite; XEDS; TEM grid; microscopy supports;

    Sammanfattning : Theoretically, electron microscopy and scanning probe microscopy offer information on a scale beyond the optical microscope. However, the quality of the micrograph and the obtained information is limited by the sample preparation. LÄS MER

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

    Detta är en avhandling från Lund University, Center for Chemistry and Chemical Engineering, Theoretical Chemistry

    Författare :Mo Segad; Lunds universitet.; Lund University.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MC simulations; SAXS; Swelling; Tactoids; EXAFS; DLS; Cryo-TEM; Nanoplatelets; MX80; Na Ca montmorillonite.;

    Sammanfattning : 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. LÄS MER

  5. 10. Controlling DNA compaction and the interaction with model biomembranes

    Detta är en avhandling från Lund University, Center for Chemistry and Chemical Engineering, Theoretical Chemistry

    Författare :Marie-Louise Ainalem; Lunds universitet.; Lund University.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DNA compaction; model biomembrane; cryo-TEM; null ellipsometry; dynamic light scattering; toroid; bilayer; neutron reflectivity; dendrimer; PAMAM; DNA; poly amido amine ;

    Sammanfattning : The studies described in this thesis forms part of a larger collaborative project, Neonuclei, with the objective to design a module for packaging the negatively charged DNA into a ”neonucleus” with transcription competence. There are many applications that require control of DNA compaction, i.e. packaging or condensation. LÄS MER