Search for dissertations about: "DNA structure"

Showing result 21 - 25 of 574 swedish dissertations containing the words DNA structure.

  2. 21. Condensation of DNA for Gene Delivery: Studies on Vector-Nucleic Acid Interactions and Transfection Efficiency

    Author : Kristina Fant; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; dendrimer; endocytosis; uptake; gene delivery; optical spectroscopy; structure-activity relationship; DNA; cell-penetrating peptide;

    Abstract : This thesis concerns the delivery of nucleic acids into cells and tissues with the aim to change or correct gene expression. The field of gene delivery has the ultimate goal of producing genetic drugs for clinical applications, and the activity in this area is intense although so far the use is limited to research purposes. READ MORE

  4. 22. Groove-binding Unsymmetrical Cyanine Dyes for DNA Applications

    Author : Maja Eriksson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polarized spectroscopy; bacteriophage T5; cryo-transmission electron microscopy; dynamic light scattering; DNA; intercalation; cyanine dyes; groove-binding; fluorescence spectroscopy; gel electrophoresis;

    Abstract : This work focuses on interactions between DNA and a group of newly developed unsymmetrical cyanine dyes. The aim of the work was to discover fluorescent dyes that can be used in biophysical studies of natural DNA where minimum perturbation of the DNA-helix is essential, where a slow dissociation rate of the dyes is needed and where the ionic strength is an important parameter. READ MORE

  5. 23. Replication and structure of adenovirus DNA

    Author : Aslihan Tolun; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  6. 24. Redefining the essential molecular aspects that drive interactions between small molecules and G-quadruplex DNA

    Author : Måns Andréasson; Erik Chorell; Anna Linusson Jonsson; Jan Kihlberg; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; G-Quadruplexes; DNA; Oncogenes; G4 ligands; heterocycles; macrocycles; organic synthesis; molecular interactions; rational compound design; medicinal chemistry.; medicinal chemistry; läkemedelskemi; organisk kemi; Organic Chemistry;

    Abstract : G-Quadruplex (G4) structures are secondary nucleic acid structures located in guanine-rich regions of DNA and RNA sequences, involved in gene regulation and cellular maintenance. Efforts to target G4s in a therapeutic setting are scarce, mainly due to vague details about the binding interactions between the ligands and the G4 structure combined with the lack of emphasis on drug-like properties early in the ligand development process. READ MORE

  7. 25. Biophysical studies of DNA binding – by the large filament-forming protein Rad51 and the small minor-groove binder Hoechst 33258

    Author : Louise Fornander; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Rad51; Linear Dichroism; DNA; Isothermal Titration Calorimetry.; Spectroscopy; Nanofluidics; Hoechst 33258; DNA-binding ligands;

    Abstract : Mechanistic insight into the nature of DNA-binding ligands is crucial for both drug development as well as understanding more complex biological reactions that take place in the cell. In this Thesis, two rather different DNA-binding molecules are considered: 1. READ MORE