Search for dissertations about: "cationic amphiphiles"

Showing result 1 - 5 of 9 swedish dissertations containing the words cationic amphiphiles.

2. 1. Concentrated DNA-amphiphiles Structure, Hydration, and Dynamics

   Author : Cecilia Leal; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; amphiphiles; DNA; Physical chemistry; diffusion NMR; solid-state NMR; electrostatics; dynamics; local order; Fysikalisk kemi; hydration;

   Abstract : The structure, hydration, and dynamics of concentrated DNA-amphiphile complexes were investigated by small-angle X-ray diffraction, sorption calorimetry, and nuclear magnetic resonance. A concentrated, electroneutral, DNA-amphiphile complex can be formed by mixing charge-stoichiometric solutions. READ MORE

4. 2. DNA Compaction at Surfaces

   Author : Marité Cárdenas; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polymer technology; Fysikalisk kemi; Physical chemistry; gränsskikt; Ytkemi; Surface and boundary layery chemistry; cationic amphiphiles; DNA; Polymerteknik; surface; biopolymers;

   Abstract : The interfacial behavior of DNA and DNA-cationic surfactant has been studied. Particular attention was paid to the type of cationic surfactant and the DNA conformation (single or double stranded) as well as the DNA length. READ MORE

5. 3. Functional Cyclic Carbonate Monomers and Polycarbonates : Synthesis and Biomaterials Applications

   Author : Jonas Mindemark; Tim Bowden; Andrew Dove; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; DNA condensation; gene delivery; ionomers; polyplexes; self-assembly; amphiphiles; biodegradable; biological applications of polymers; transfection; cyclic carbonate monomers; polycarbonates; semicrystalline polymers; click chemistry; triazoles; cycloaddition; Kemi med inriktning mot polymerkemi; Chemistry with specialization in Polymer Chemistry;

   Abstract : The present work describes a selection of strategies for the synthesis of functional aliphatic polycarbonates. Using an end-group functionalization strategy, a series of DNA-binding cationic poly(trimethylene carbonate)s was synthesized for application as vectors for non-viral gene delivery. READ MORE

6. 4. Association of Amphiphiles and Polyelectrolytes with DNA

   Author : Yulia S Mel'nikova; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; cryo-TEM; SAXS; fluorescence microscopy; DNA condensation; DNA-polyelectrolyte; DNA- amphiphile interactions; Fysikalisk kemi;

   Abstract : 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. READ MORE

7. 5. Self-assembly in Melts of Block copolymer-based Systems Featuring Supramolecular Interactions

   Author : Mehran Asad Ayoubi; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; hierarchical self-assembly; melt; block copolymer; cationic surfactant; non-ionic surfactant; supramolecular interactions; microphase separation; Linear-b-AmphComb;

   Abstract : The subject of this thesis is experimental investigation of self-assembly in solvent-free (ionic) macromolecular systems that contain block copolymer chains as the basic constituent component in combination with low molecular weight amphiphiles. In particular, especial attention is paid to study thoroughly a new class of block copolymer-based ionic supramolecules, named as Linear-b-AmphComb, that feature novel hierarchical self-assembly characteristics. READ MORE