Sökning: "polyethylene glycol PEG"

Visar resultat 6 - 10 av 54 avhandlingar innehållade orden polyethylene glycol PEG.

  1. 6. Surfactants based on natural products - enzymatic synthesis and functional characterization

    Författare :Fredrik Viklund; KTH; []
    Nyckelord :Enzymatic synthesis; Surfactants; Antioxidants; Ascorbyl oleate; Polyethylene glycol PEG esters; Hemolysis; Transepithelial electrical resistance; Ionic liquids; Candida antarctica lipase B;

    Sammanfattning : Surfactants are molecules that contain a water-soluble and afat-soluble part. They have important functions in productssuch as detergents, cosmetics, pharmaceuticals and foods aswell as in many industrial processes. Surfactants are used onvery large scale, which makes it important to decrease theirimpact on the environment. LÄS MER

  3. 7. Hydrophobically Modified Polymers. Rheology and Molecular Associations

    Författare :Leif Karlson; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polymer self diffusion; Physical chemistry; Fysikalisk kemi; rheology; hydrophobically modified polyethylene glycol; hydrophobically modified ethyl hydroxyethyl cellulose; cyclodextrin; hydrophobically modified polymer; associative thickener;

    Sammanfattning : Structure- property relationships and thickening mechanism in aqueous solution of two hydrophobically modified polymers (HM-P) with different architecture have been investigated. The two polymers, hydrophobically modified ethyl hydroxyethyl cellulose (HM-EHEC) and hydrophobically modified polyethylene glycol (HM-PEG), are commonly used as associative thickeners in the paint industry. LÄS MER

  4. 8. Nanosized Bilayer Disks as Model Membranes for Interaction Studies

    Författare :Anna Lundquist; Katarina Edwards; Marja-Liisa Riekkola; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Disk; disc; lipid bilayer; PEG-lipid; model membrane; interaction; partitioning; drug; liposome; cryo-TEM; neutron scattering; capillary electrophoresis; immobilization; biosensor; membrane protein; melittin; Chemistry; Kemi;

    Sammanfattning : PEG-lipid stabilized bilayer disks have been found in lipid mixtures containing polyethylene glycol (PEG)-lipids where the combination of a high bending rigidity and low PEG-lipid/lipid miscibility favours disk formation. The disks are planar and circular in shape and their long-term stability is excellent. LÄS MER

  5. 9. Formation of Mesoporous Materials and their use as Lipid Bilayer Supports

    Författare :Maria Wallin; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; tethered lipid bilayers; meso-ordered PEG-DA hydrogels; dendrimers; porous silica and titania; lipid bilayers; biosensing;

    Sammanfattning : Mesoporous materials have acquired great scientific interest in various applications; something that is largely due to that their properties, such as pore size, pore orientation, material composition and surface chemistry, can be controlled to a large extent. One idea, which has been investigated in this thesis, is to use mesoporous materials as supports for lipid bilayers and by doing so fabricate devices that mimic the cell wall and at the same time has sufficient mechanical robustness for practical use. LÄS MER

  7. 10. Biomarkers for colon cancer : applications in human and rat studies

    Författare :Pernilla C. Karlsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Colon cancer biomarkers; faecal water; polyethylene glycol; synbiotics; COX-2 inhibitors;

    Sammanfattning : Colon cancer is one of the major causes of cancer in industrialized countries, and it is caused by a combination of hereditary, environmental and dietary factors and lack of physical activity. Of these factors, diet is one of the most important. LÄS MER