Sökning: "Nuclear Magnetic Resonance"

Visar resultat 36 - 40 av 44 uppsatser innehållade orden Nuclear Magnetic Resonance.

  1. 36. NMR detection of liquid dynamics in porous matrices

    Master-uppsats, KTH/Tillämpad fysikalisk kemi

    Författare :Payam Pourmand; [2012]
    Nyckelord :Porous material; Controlled Pore Glass; NMR; Diffusion NMR;

    Sammanfattning : Porous materials or a porous media can be encountered in our everyday life, both in industrial and household systems and in the nature. Generally speaking all solid and semisolid materials are porous to some degree e.g. different dense rock types, plastics etc. LÄS MER

  3. 37. Biophysical characterization of the *5 protein variant of human thiopurine methyltransferase by NMR spectroscopy

    Master-uppsats, Molekylär Bioteknik

    Författare :Robert Gustafsson; [2012]
    Nyckelord :thiopurine methyltransferase; hydrogen exchange; nuclear magnetic resonance; relaxation; protein dynamics; local stability;

    Sammanfattning : Human thiopurine methyltransferase (TPMT) is an enzyme involved in the metabolism of thiopurine drugs, which are widely used in leukemia and inflammatory bowel diseases such as ulcerative colitis and Crohn´s disease. Due to genetic polymorphisms, approximately 30 protein variants are present in the population, some of which have significantly lowered activity. LÄS MER

  4. 38. Using 19F-NMR and 1H-NMR for Analysis of Glucocorticosteroids in Creams and Ointments : -Method Development for Screening, Quantification and Discrimination

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Angelica Lehnström; [2011]
    Nyckelord :NMR; 19F; 1H; nuclear magnetic resonance; glucocorticosteroid; corticosteroid;

    Sammanfattning : Topical treatment containing undeclared corticosteroids and illegal topical treatment with corticosteroid content have been seen on the Swedish market. In creams and ointments corticosteroids in the category of glucocorticosteroids are used to reduce inflammatory reactions and itchiness in the skin. LÄS MER

  5. 39. How ionic are ionic liquids?

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Kristoffer Bernhem; [2011]
    Nyckelord :Ionic liquid; ion charge; association; electrophoretic NMR; diffusion NMR.;

    Sammanfattning : Ionic liquids are continuously finding more and more applications, both in research and in the industry. Many attempts have been made to find parameters that could be used to describe all ionic liquid systems. Five years ago a Japanese group applied the work of Gutmann on ionic liquids to use ionic association to describe solvation effects. LÄS MER

  7. 40. Terpenes as renewable monomers for biobased materials

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE); KTH/VinnExcellens Centrum BiMaC Innovation

    Författare :Emelie Norström; [2011]
    Nyckelord :Limonene; Terpenes; Radical polymerisation; Cationic polymerisation; Thiol-ene polymerisation;

    Sammanfattning : With the ambition to decrease the utilization of fossil fuels, a development of those raw materials that today only are seen as waste products is necessary. One of those waste products is turpentine. Turpentine is the largest natural source of terpenes in the world today. The main components are the terpenes α-pinene, β-pinene and 3-carene. LÄS MER