Sökning: "surface channels"

Visar resultat 1 - 5 av 122 avhandlingar innehållade orden surface channels.

  1. 1. Dynamic Wetting of Solid Surfaces, Influence of Surface Structures and Surface Active Polymers

    Detta är en avhandling från Institute for Surface Chemistry, Box 5607, SE-114 86 Stockholm

    Författare :Stina Gerdes; Lund University.; Lunds universitet.; [1998]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; stick-slip; Wilhelmy plate; block copolymers; surface active polymers; surface channels; spreading; contact angles; dynamic wetting; surface structures; Fysikalisk kemi;

    Sammanfattning : The effect of surface structures on the dynamics of wetting was investigated through measurements of the dynamic contact angle and spreading velocity of oil droplets spreading over surfaces with parallel and gridlike V-shaped channels. A rim of liquid was observed to spread out in the channels ahead of the dropfront after a short time of spreading (seconds). LÄS MER

  2. 2. Lipid-Based Surface Modifications: towards the Development of Membrane-Protein Arrays

    Detta är en avhandling från Institute for Surface Chemistry, Box 5607, SE-114 86 Stockholm

    Författare :Indriati Pfeiffer; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DNA-array; cholesterol-DNA; EIS; membrane proteins; lipid vesicles; QCM-D; supported lipid bilayer;

    Sammanfattning : Mimics of the natural cell membrane, such as lipid vesicles and supported lipid membranes, have gained significant attention in recent years. This is primarily due to their ability to provide scientists with a model system allowing a large arsenal of scientific tools to be used in studies of biological reactions that are naturally controlled by the cell membrane and its components. LÄS MER

  3. 3. Charge Development at Iron Oxyhydroxide Surfaces The Interplay between Surface Structure, Particle Morphology and Counterion Identity

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Philipp A. Kozin; Umeå universitet.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Iron oxyhydroxides; adsorption; mineral-water interface; electrolyte; surface roughness; pores;

    Sammanfattning : Iron (oxyhydr)oxide (FeOOH) minerals play important roles in various natural, technological and societal settings. The widespread abundance of these minerals has prompted numerous studies on their surface reactivity in aqueous media. Surface charge development, one that namely takes place through the adsorption of potential determining ions (p.d. LÄS MER

  4. 4. Targeting the voltage-gated calcium channels as treatment for type 2 diabetes

    Detta är en avhandling från Islet patophysiology, Clinical Sciences, Malmö

    Författare :Pawel Buda; Lund University.; Lunds universitet.; Lund University.; Lunds universitet.; [2015]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; autophagy; apoptosis; calcium channels; Type 2 Diabetes;

    Sammanfattning : L-type voltage-gated Ca2+ channels are expressed in the plasma membrane of muscles, neurons and endocrine cells where they serve as conductors of signals regulating cellular responses to changes in environment. Malfunctions of channels, as well as deregulations of their activity underlie numerous disorders and diseases commonly called channelopathies. LÄS MER

  5. 5. Water transport through perinatal skin Barrier function and aquaporin water channels

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Johan Ågren; Uppsala universitet.; [2003]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatrics; Preterm infant; Transepidermal water loss; Aquaporin; Skin biology; Hyperosmolarity; Pediatrik; MEDICINE Dermatology and venerology; clinical genetics; internal medicine Internal medicine Paediatric medicine; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin Invärtesmedicin Pediatrisk medicin; pediatrik; Pediatrics;

    Sammanfattning : While constituting a well functioning interface with the aqueous environment in utero, the skin offers a poor barrier after very preterm birth. As a result, transepidermal water loss (TEWL) is high, a fact which has important clinical consequences in these infants. LÄS MER