Sökning: "non-ionic surfactants"

Visar resultat 1 - 5 av 24 avhandlingar innehållade orden non-ionic surfactants.

  1. 1. Allergenic oxidation products in ethoxylated non-ionic surfactants : Chemical characterization and studies on allergenic activity

    Författare :Margareta Bergh; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical chemistry; Farmaceutisk kemi; Pharmaceutical chemistry; Farmaceutisk kemi; Organic Pharmaceutical Chemistry; organisk farmaceutisk kemi;

    Sammanfattning : The susceptibility of ethoxylated non-ionic surfactants to oxidation on exposure to air was investigated. Surfactants have a complex chemical composition and are widely used in a variety of applications for to their amphiphilic properties. Ethoxylated non-ionic surfactants are regarded by the producers to be stable at normal handling. LÄS MER

  3. 2. Rigid PVC Nanocomposites - Influence of Processing and Montmorillonite Treatment

    Författare :Karin Sterky; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; non-ionic; processing; PVC; interaction; nanocomposite; montmorillonite;

    Sammanfattning : Poly(vinyl chloride) (PVC) is a material extensively used in various applications due to its lowcost, durability, and chemical resistance. There are, however, still improvements that can bemade to the material. LÄS MER

  4. 3. Vesicle - surfactant interactions : effect of non-ionic surfactants on structure and leakage of small unilamellar vesicles

    Författare :Katarina Edwards; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 4. Colloidal suspensions of mesostructured silica

    Författare :Andreas Berggren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; formation mechanism; non-ionic surfactants; silica; inorganic silica; colloidal suspension; control of particle size;

    Sammanfattning : Mesoporous silica is a porous material with walls made of silica and pores in the size range of 2-50 nm. Since the silica most often is amorphous, the material lacks short range order but the pores may be arranged in different structures generating a long-range order. LÄS MER

  7. 5. Micro-scale Platforms for Investigations of Biological Structures

    Författare :Anna Kim; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; microfabrication; non-ionic surfactants; single-cell viability; hydrodynamic flow confinement; cell-to-cell connections; SU-8; Teflon AF; cell protrusions; free-standing probes; millimeter-waves;

    Sammanfattning : This thesis describes the development of innovative micro-scale platforms as a means to address the current challenges within the field of cell biology, and to provide an interface between miniaturized analytical technology and experimental systems for the life sciences. The work includes an analytical platform for rapid assessment of the viability of adherent single cells; a surface patterning strategy for investigations of cell-to-cell communication via protrusions; a versatile microfluidic probe in SU-8 hard-polymer, and a microfabricated millimeter-wave measurement system for the identification and characterization of niosome (non-ionic surfactant vesicle) constituents, which is operated in a label-free, non-invasive manner. LÄS MER