Search for dissertations about: "NMRD"

Found 5 swedish dissertations containing the word NMRD.

  1. 1. An Analysis of NMRD profiles and ESR lineshapes of MRI Contrast Agents

    University dissertation from Umeå : Kemi

    Author : Xiangzhi Zhou; Umeå universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; MRI contrast agent; MS-325; Spin relaxation; NMRD; ESR; Fysikalisk kemi; NATURAL SCIENCES Chemistry Physical chemistry; NATURVETENSKAP Kemi Fysikalisk kemi; Physical Chemistry; fysikalisk kemi;

    Abstract : To optimize contrast agent in MRI scan region, e.g. to enhance paramagnetic relaxation in the MRI scan fields(0.1T-3T), one possible way is to slow down the tumbling of the paramagnetic complex. READ MORE

  2. 2. Analysis of NMR Spin-lattice Relaxation Dispersion on Complex Systems

    University dissertation from Umeå : Umeå university

    Author : Yang Huang; Umeå universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NMRD; relaxation theory; hydration; MD; FFC; PrxV; OEC complex; ZSM-5; BMIM [PF6; ]; fysikalisk kemi; Physical Chemistry;

    Abstract : This thesis focus on the analysis of spin-lattice NMRD relaxation profilesmeasured in various complex systems such as proteins, zeolites and ionicliquids. Proton, deuterium and fluoride T1-NMRD relaxation profiles wereobtained from a fast-field cycling (FFC) instrument. READ MORE

  3. 3. Nuclear Magnetic Relaxation Dispersion and Pulsed-Gradient Spin Echo Studies of Biomolecular Solutions and Amphiphilic Liquid Crystals

    University dissertation from Sveriges Lantbruksuniversitet

    Author : Haukur Jóhannesson; Lund University.; Lunds universitet.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; stretched dispersion; DNA hydration; solvent dynamics; NMRD; Random flight simulation; PGSE; Diffusion; Nematic phase; NMR; Amphiphilic liquid crystals; Physical chemistry; Fysikalisk kemi;

    Abstract : Biomolecular solutions and amphiphilic liquid crystals are studied by Nuclear Magnetic Resonance Dispersion (NMRD) and Pulsed-Gradient Spin Echo (PGSE) respectively. A random-flight simulation is performed to obtain the obstructing factors for self-diffusion of small molecules in macrofluids. READ MORE

  4. 4. Study of retention mechanisms in Hydrophilic Interaction Chromatography by Nuclear Magnetic Resonance Spectroscopy

    University dissertation from Umeå : Umeå University

    Author : Adel Shamshir; Umeå universitet.; [2020]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; HILIC; hydrophilic interaction chromatography; adsorption; STD-NMR; saturation transfer difference; retention mechanism; NMRD; solid state-NMR; Analytical Chemistry; analytisk kemi;

    Abstract : This thesis deals with investigations of the retention mechanisms in hydrophilic interaction liquid chromatography (HILIC) using nuclear magnetic resonance spectroscopy. The aims are to understand how the different types of stationary phases can influence the retention of various solutes and the adsorption abilities of solvent on stationary phases. READ MORE

  5. 5. ALA and m-ALA in bicontinuous lipid formulations: -Characterization and Transdermal Delivery

    University dissertation from Umeå : Umeå University

    Author : Johanna Bender; [2004]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; passive diffusion; SAXS; monoolein; methyl 5-aminolevulinate hydrochloride; NMRD; sponge phase; 5-aminolevulinic acid hydrochloride; iontophoresis;

    Abstract : δ-Aminolevulinic acid (ALA) and its methyl ester (m-ALA) are both used in photodynamic therapy (PDT) of certain non melanoma skin cancers as the basal cell carcinoma (BCC). In PDT the cancer cells are destroyed by a photochemical reaction that occurs when a photosensitive molecule is irradiated with light of a certain wavelength. READ MORE