Search for dissertations about: "Polarized cells"

Showing result 6 - 10 of 63 swedish dissertations containing the words Polarized cells.

  2. 6. Studies of Charge Transport and Energy Level in Solar Cells Based on Polymer/Fullerene Bulk Heterojunction

    Author : Abay Gadisa; Olle Inganäs; Vladimir Dyakonov; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bulk heterojunction; Charge transport; Space charge limited; Bipolar transport; Origin of open circuit voltage; Polymer-fullerene blend; Soft contact lamination; Polarized infrared emission; Physics; Fysik;

    Abstract : π-Conjugated polymers have attracted considerable attention since they are potential candidates for various opto-electronic devices such as solar cells, light emitting iodes, photodiodes, and transistors. Electronic de vices based on conjugated polymers can be easily processed at low temperature using inexpensive technologies. READ MORE

  4. 7. Differential expression pattern of CEACAM1 isoforms in polarized epithelial cells : it's regulation and some functional consequences

    Author : Ulla Sundberg; Karolinska Institutet; Karolinska Institutet; []
    Keywords : CEACAM1; adhesion; lateral localization; adherens junctions; desmosomes; primary cilia;

    Abstract : The cell adhesion molecule CEACAM1 is expressed in epithelia, small vessel endothelia and leukocytes as two major, co-expressed isoforms, CEACAM1-L and CEACAM1-S, which differ in their cytoplasmic domains. CEACAM1 has been found both in cell-cell contact areas and on apical surfaces of polarized epithelial cells. READ MORE

  5. 8. Radio Frequency Systems for NMR Imaging: Coil Development and Studies of Non-Thermal Biological Effects

    Author : Lars Malmgren; Lunds universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; anechoic chamber; TEM transmission cells; FDTD; circularly polarized electromagnetic fields; reduced coupling; noise matching; matching networks; low noise amplifiers; upper thoracic spine; surface coils; Nuclear magnetic resonance; magnetic resonance imaging; non-thermal biological effects; blood-brain barrier; Electronics; Elektronik;

    Abstract : This thesis concerns both design and optimization of NMR imaging systems and studies on non-thermal biological effects of electromagnetic fields. These two research fields are linked together by the fact that humans are subject to static and pulsed magnetic fields as well as to magnetic radio frequency fields (RF) during an NMR imaging investigation. READ MORE

  6. 9. New Approaches for Chemical Analysis of Single Cells and Vesicles

    Author : Johan Dunevall; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Electrochemistry; Analytical chemistry; Chemistry; Exocytosis; Catecholamines;

    Abstract : Exocytosis is the major cell-to-cell communication process in the nervous system, involving the conversion of an electrical signal (e.g. action potential) to a chemical one. Signaling molecules like neurotransmitters, hormones and/or peptides are stored in vesicles inside the cell. READ MORE

  7. 10. Tailoring of Biomaterials using Ionic Interactions : Synthesis, Characterization and Application

    Author : Björn Atthoff; Jöns Hilborn; Tim Bowden; Mats Andersson; Uppsala universitet; []
    Keywords : Chemistry; biodegradable polymers; ionomer; water uptake; protein delivery; protein adsorption; protein membrane; cell seeding efficiency; amphiphillic; inner structure; polarized membrane; Kemi;

    Abstract : The interactions between polymers and components of biological systems are an important area of interest within the fields of tissue engineering, polymer chemistry, medicine and biomaterials. In order to create such a biomimetic material, it must show the inherent ability to reproduce or elicit a biological function. READ MORE