Search for dissertations about: "polydisperse systems"
Showing result 1 - 5 of 8 swedish dissertations containing the words polydisperse systems.
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1. NMR diffusion studies on lyotropic liquid crystalline systems
Abstract : The pulsed field gradient fourier transform nuclear magnetic resonance (PFG-FTNMR) method to measure translational diffusion coefficients in multicomponent systems has been applied to amphiphilic molecules forming liquid crystalline phases.By analyzing the concentration dependence of the diffusion coefficients of water and amphiphile in a micellar system of N,N-dimethyldodecy lamine oxide (DDAO) in water it was possible to conclude that the micelles formed were polydisperse in size and shape. READ MORE
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2. Structural Changes in Nonionic Surfactant Systems
Abstract : In this thesis we have studied structural changes of a nonionic surfactant self-assembly, as governed by changes in temperature and concentration. The techniques used in experimental investigations were dynamic and static light scattering, nuclear magnetic resonance and cryo-transmission electron microscopy (using a novel specimen preparation protocol). READ MORE
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3. Interactions between the opioid and serotonin systems in chronic pain : quantitative live cell study by fluorescence cross-correlation spectroscopy (FCCS)
Abstract : Chronic pain is a major health issue worldwide. It enacts considerable suffering on the affected individuals and significantly increases the societal burden, as it is the most common reason why individuals seek sick leave and ask for medical help. READ MORE
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4. Structure and chemical ordering in metallic nanoparticles from atomic scale modeling
Abstract : In the last decades, a wide range of attractive properties have put metallic nanoparticles in the spotlight. These properties, often related to optical response and catalytic performance, are to a large extent dependent on structure and chemical ordering, that is, the distribution of elements in the nanoparticle. READ MORE
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5. Anionic oligothiophenes : Optical tools for multimodal fluorescent assignment of protein aggregates
Abstract : Luminescent conjugated oligothiophenes (LCOs) represent a useful and interesting class of materials well known for their abilities as transducers for colorimetric and fluorometric reporting. Specifically, they have the ability to produce a conformation-dependent spectral signature reflective of changes in their local environment. READ MORE