Sökning: "microelectrode"

Visar resultat 1 - 5 av 44 avhandlingar innehållade ordet microelectrode.

  1. 1. New Electrochemical Tools to Study Exocytosis

    Författare :Joakim Wigström; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; amperometry; QCM-D; micro electrode array; large dense core vesicles; chromaffin cells; PC-12 cells; microelectrode; exocytosis; electrochemical cytometry; electrochemical imaging; acetylcholine; endocytosis; nanoparticles; enzyme biosensor; microfabrication;

    Sammanfattning : The work described in this thesis has the focus on the development of new analytical tools to study processes related to cellular secretion (exocytosis) in cell models. Four novel techniques were developed, allowing new ways to study processes related to exocytosis, and gain previously unattainable knowledge. LÄS MER

  3. 2. Nanoscientific investigations of electrode materials for supercapacitors

    Författare :Helena Malmberg; Pehr Björnbom; Anders Lundblad; Signe Kjelstrup; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Supercapacitor; double layer; microelectrode; ionic transport; Chemical engineering; Kemiteknik;

    Sammanfattning : This doctoral thesis gives background to the field of electrochemical energy storage in supercapacitors. It attempts to place the supercapacitor device in context of available and future technologies for alternative energy systems for transportation. LÄS MER

  4. 3. Gastrointestinal mucosal protective mechanisms : Mudolatory effects of Heliobacter pyroli on the gastric mucus gel barrier and mucosal blood flow in vivo

    Författare :Christer Atuma; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology and anatomy; mucus gel layer; mucosal blood flow; mucus thickness; chronic infection; rat; platelet activating factor; mast cell; nitric oxide; nitric oxide synthase; ketotifen; intra-vital microscopy; microelectrode; laser-Doppler flowmetry; L-NNA; Fysiologi och anatomi; Physiology and pharmacology; Fysiologi och farmakologi; Physiology; fysiologi;

    Sammanfattning : The gastrointestinal mucus gel layer and blood flow are two important mechanisms for protection at the pre-epithelial and sub-epithelial levels, respectively. Helicobacter pylori might circumvent these mechanisms and elicit a chronic inflammatory response with consequent ulcers in the stomach and duodenum. LÄS MER

  5. 4. Spotting pain in the brain. Towards a useful animal model of pain

    Författare :Tanja Jensen; Neurofysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; analgesics; freely moving rat; microelectrode; Nociception; Primary somatosensory cortex; Sedatives;

    Sammanfattning : Current models of pain in conscious animals usually scores nocifensive responses. However, it is still unclear to what extent these responses are related to, for instance, the sensory discriminative or affective aspects of pain. LÄS MER

  7. 5. PROBING NAD(P)H AVAILABILITY IN LIVING CELLS USING MINIATURIZED ELECTROCHEMICAL SYSTEMS

    Författare :Natalie Kostesha; Teknisk mikrobiologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; redox; NAD P H; living cells; S. cerevisiae; mediated amperometry; microelectrode; electrochemistry;

    Sammanfattning : The work presented in this thesis demonstrates the application of electrochemical methods for probing the dynamics of cellular metabolism in prokaryotic and eukaryotic cells. The main part of the work has been done using genetically modified strains of yeast. Employing baker’s yeast, S. LÄS MER