Sökning: "2D NMR"

Visar resultat 11 - 15 av 25 avhandlingar innehållade orden 2D NMR.

1. 11. Magnetic moments

   Författare :Jan Holmbäck; KTH; []
   Nyckelord :;

   Sammanfattning : This thesis presents the background, the methodology andsome applications of the utilization of NMR spectroscopy inlipid science. The basic principles of NMR spectroscopy and itspractical implementation for studies of lipids are described. Asystematic review of different lipid classes and theirstructural features is presented. LÄS MER

3. 12. Secondary Metabolites from Mozambican Plants

   Författare :Julião Monjane; Centrum för analys och syntes; []
   Nyckelord :Secondary metabolites; Mozambique; Medicinal plants; Isolation; Structural elucidation; Antileishmanial activity;

   Sammanfattning : Products derived from different natural sources have been used for thousands of years by human beings for their everyday needs. Out of these natural sources, plants were the most affordable. Plant-derived products were used for shelter, food, and as medicines. LÄS MER

4. 13. Terpenoid Plant Metabolites - Structural Characterization and Biological Importance

   Författare :Eliana Maldonado; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Terpenoid Sesquiterpene lactones Breast-cancer cell lines Cytotoxicity Antileishmanicial Structural characterization;

   Sammanfattning : In response to the challenges of their local environments, organisms produce of a large number of chemical diverse compounds with complex stereochemistry and reactive functional groups. These characteristics enable them to interact and bind specifically to biological target molecules and exert various biological activities, and have assured that Natural products continues to be an important source of bioactive compounds, which, for example, facilitate the search for new lead structures that can be developed into new pharmaceuticals. LÄS MER

5. 14. Chemical Functionalization and Characterization of Cellulosic Materials

   Författare :Hanna de la Motte; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Nuclear magnetic resonance; Crosslinking; High bulk networks; Cotton linters; Cationization; Nanocrystalline cellulose; Softwood kraft pulp; Characterization;

   Sammanfattning : Polysaccharides are the most abundant biopolymers produced in nature and belong, together with proteins and nucleic acids, to the main components of life. Polysaccharides are polyhydroxylic polymers that can be functionalized by a wide selection of chemical reactions, and modifications of these biopolymers are applicable in the development of new materials. LÄS MER

7. 15. Natural products from Bolivian plants

   Författare :José Vila; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organisk kemi; Organic chemistry; lichens; Secondary metabolites; Bolivian plants;

   Sammanfattning : Bolivia has the most varied ecology in South America - the Amazonas rainforests, the dry forests of the Chaco, the mist forests, the punas and high Andean vegetation. Some general studies have been carried out on useful plants; traditional medicine has been practiced in parts of region for thousands of years, recognized and accepted for treatment of various diseases. LÄS MER