Search for dissertations about: "solubility problems"

Showing result 1 - 5 of 16 swedish dissertations containing the words solubility problems.

  2. 1. Development and characterisation of protecting groups that enhance the solubility of synthetic peptides : Methods to improve the aqueous solubility of hydrophobic peptides

    Author : Karolina Wahlström; Anders Undén; Fernando Albericio; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Solid phase peptide synthesis; Fmoc chemistry; solubility problems; tryptophan; tyrosine; Nmec; Nmbu; Bioorganic chemistry; Bioorganisk kemi; Neurochemistry and Molecular Neurobiology; neurokemi med molekylär neurobiologi;

    Abstract : Chemical synthesis of peptides is generally performed by solid phase peptide synthesis (SPPS). Although SPPS is a rapid and convenient method to prepare peptides, the major methodological problem in SPPS is related to solvation/solubility. READ MORE

  4. 2. Extraction and chromatography of bioactive compounds in complex samples using supercritical CO2 technology

    Author : Said Alhamimi; Centrum för analys och syntes; []
    Keywords : Supercritical CO2; Chromatography; Extraction; Mass transfer; Solubility;

    Abstract : Bioactive compounds found in plants have been of interest to man since ancient times. These compounds have the ability to modulate the metabolic processes in our bodies, which suggests that they may promote better health. Bioactive compounds vary in their chemical structure, polarity, stability and biological activity. READ MORE

  5. 3. Dissolution of cellulose for textile fibre applications

    Author : Martin Kihlman; Ulf Germgård; Mats Westin; Lars Stigsson; Stefan Backa; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; alkaline aqueous solvent systems; cellulose; dissolution; dissolving pulp; kraft pulp; pretreatment; pulp characterization; sulfite pulp; textile fibres; Chemical Engineering; Kemiteknik;

    Abstract : This thesis forms part of a project with the objective of developing and implementing a novel, wood-based, process for the industrial production of cellulose textile fibres. This new process should not only be cost effective but also have far less environmental impact then current processes. READ MORE

  6. 4. Biofiltration of odorous gas emissions

    Author : Anneli Andersson-Chan; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Abstract : Biofiltration has shown its potential as an interesting treatment alternative for contaminated gas streams. Unlike conventional technologies, such as adsorption, scrubbers, and incineration, biofiltration offers effective pollution control at relatively low capital and operating costs, and without the generation of secondary pollution that may require subsequent treatment. READ MORE

  7. 5. Characterisation of materials for use in the molten carbonate fuel cell

    Author : Sara Randström; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Molten Carbonate Fuel Cell; Anode Current Collector; Cathode; Wet-seal; Chemical engineering; Kemiteknik;

    Abstract : Fuel cells are promising candidates for converting chemical energy into electrical energy. The Molten Carbonate Fuel Cell (MCFC) is a high temperature fuel cell that produces electrical energy from a variety of fuels containing hydrogen, hydrocarbons and carbon monoxide. READ MORE