Sökning: "Phase separation"

Visar resultat 21 - 25 av 474 avhandlingar innehållade orden Phase separation.

  1. 21. Microscale Tools for Sample Preparation, Separation and Detection of Neuropeptides

    Författare :Andreas Dahlin; Jonas Bergquist; Karin E. Markides; Robert T. Kennedy; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; Neuropeptides; Microchip; Enhanced microdialysis; Poly dimethylsiloxane PDMS ; Electrospray ionization ESI ; Multidimensional separation; Electrochemical manipulation; Mass spectrometry MS ; Capillary electrophoresis CE ; Microdevice; Microfabrication; Micro total analysis system μ-TAS ; Analytisk kemi; Analytical chemistry; Analytisk kemi;

    Sammanfattning : The analysis of low abundant biological molecules is often challenging due to their chemical properties, low concentration and limited sample volumes. Neuropeptides are one group of molecules that fits these criteria. Neuropeptides also play an important role in biological functions, which makes them extra interesting to analyze. LÄS MER

  3. 22. Alkylglucosides - physical chemical properties

    Författare :Frederik Nilsson; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; penetration experiment; DSC; SAXS; NMR self-diffusion; phase separation; size micro-structure; aggregate-aggregate interaction; liquid crystalline phases; micelles; alkylglucosides; phase diagrams; fluorescence.; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : The aim of this study is to characterise the physical-chemical properties of alkylglucosides. Alkylglucosides are non-ionic surfactants synthesized from glucose and a fatty alcohol. The glucose molecule constitutes the hydrophilic head group and the fatty alcohol constitutes the hydrophobic tail. LÄS MER

  4. 23. Partitioning of biomolecules in thermoseparating polymer-water two-phase systems

    Författare :Hans-Olof Johansson; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; aqueous two-phase system; temperature-induced phase separation; amino acid and peptide separation; polymer; partitioning; Biology; Biologi;

    Sammanfattning : The partitioning behaviour of different types of molecules in thermoseparating two-phase systems has been studied. A thermoseparating two phase system was formed by heating a water solution, which contained a thermoseparating polymer, above the cloud point temperature. LÄS MER

  5. 24. Functional roles of protein phase separated assemblies in cellular stress response and proteinopathies

    Författare :Michelle Lindström; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phase separation; LLPS; stress granules; Lsm7; FUS; Ccr4;

    Sammanfattning : For a long time, pertinent biological conundrums, such as the organization and compartmentalization of the cytoplasm and nucleoplasm, perplexed the scientific community. The organization of the complex biochemistry in an accurate space and time manner could not be explained without the enclosure of a membrane. LÄS MER

  7. 25. Hydrophilic Separation Materials for Liquid Chromatography

    Författare :Petrus Hemström; Knut Irgum; Peter Schoenmakers; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chromatography; HILIC; Hydrophilic; Stationary phase; Chemistry; Kemi;

    Sammanfattning : The main focus of this thesis is on hydrophilic interaction chromatography (HILIC) and the preparation of stationary phases for HILIC. The mechanism of HILIC is also discussed; a large part of the discussion has been adapted from a review written by me and professor Irgum for the Journal of Separation Science (ref 34). LÄS MER