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  1. 1. Biomimetic surfaces : Preparation, characterization and application

    Författare :Annika Borgh; Bo Liedberg; Fredrik Höök; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Self-assembled monolayers; biomimetic surfaces; phosphates; antifreeze; surface spectroscopy; Molecular physics; Molekylfysik;

    Sammanfattning : I denna avhandling beskrivs tillverkning, karaktärisering och tillämpning av ett antal biomimetiska ytor. Biomimetik är att härma naturen och grundtanken är att titta på hur naturen löst liknande problemställningar. LÄS MER

  3. 2. Acute inflammation on model biomaterial surfaces : studies on proteins, neutrophils and platelets

    Författare :Jonas Wetterö; Ulf Sjöbring; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Although most biomedical devices are non-toxic, disturbed acute and chronic inflammation and the lack of integration in tissues is a concern. At the time of biomaterial insertion, protein adsorption onto material surfaces precedes cell adhesion and is believed to alter unfavorably the acute inflammatory response and the subsequent tissue healing. LÄS MER

  4. 3. Cam Roller Contact : Surfaces and Tribology

    Författare :Frédéric Cabanettes; Bengt-Göran Rosén; Ulf Olofsson; Högskolan i Halmstad; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wear reduction; camshaft; roller; surface topography; relocation; elasto plastic rough contact; elasto hydrodynamic lubrication; Mechanical engineering; Maskinteknik;

    Sammanfattning : The automotive industry and the design of engines are strongly ruled by performance and legislation demands. In the valve train, mechanical components such as camshafts and rollers are defined by specifications including more and more constraints concerning their ability to face wear thus prolonging lifetime. LÄS MER

  5. 4. Phthalocyanines on Surfaces : Monolayers, Films and Alkali Modified Structures

    Författare :Katharina Nilson; Carla Puglia; Joachim Schiessling; Emmanuelle Göthelid; Nils Mårtensson; Guy Le Lay; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Atomic and molecular physics; Phthalocyanines; Surface Science; X-ray Photoelectron Spectroscopy XPS ; X-ray Absorption Spectroscopy XAS ; Scanning Tunneling Microscopy STM ; Density Functional Theory DFT ; Metal-free Phthalocyanine; Iron Phthalocyanine; Zinc Phthalocyanine; Gold; Graphite; Aluminium; Indium Antimony; Molecular adsorption; Monolayer; Film; Alkali; Geometrical structure; Electronic structure; Doping; Atom- och molekylfysik; Physics; Fysik;

    Sammanfattning : The Phthalocyanines (Pc’s) are a group of macro-cyclic molecules, widely investigated due to the possibility to use them in a variety of applications. Electronic and geometrical structure investigations of molecular model systems of Pc’s adsorbed on surfaces are important for a deeper understanding of the functionality of different Pc-based devices. LÄS MER

  7. 5. Interactions of cellulose and model surfaces

    Författare :Johanna Stiernstedt; Mark Rutland; William Ducker; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Surface and colloid chemistry; Yt- och kolloidkemi;

    Sammanfattning : The focus of this thesis is fundamental surface force and friction studies of silica and cellulose surfaces, performed mainly with the atomic force microscope (AFM). The normal interactions between model cellulose surfaces have been found to consist of a longer range double layer force with a short range steric interaction, the nature of which is extensively discussed. LÄS MER