Search for dissertations about: "redox mediator"

Showing result 1 - 5 of 37 swedish dissertations containing the words redox mediator.

2. 1. Alternative Redox Couples for Dye-Sensitized Solar Cells

   Author : Sandra Feldt; Anders Hagfeldt; Gerrit Boschloo; Petra Cameron; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; redox mediator; triphenylamine; cobalt; ferrocene; titanium dioxide; regeneration; recombination; Physical Chemistry; Fysikalisk kemi;

   Abstract : Dye-sensitized solar cells (DSCs) convert sunlight to electricity at a low cost. In the DSC, a dye anchored to a mesoporous TiO2 semiconductor is responsible for capturing the sunlight. READ MORE

4. 2. Studies of Electrocatalytic Reactions of NADH at Mediator Modified Electrodes and of H2O2 at Peroxidase Modified Electrodes

   Author : Florentina Munteanu; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Electrochemistry; Elektrokemi; kinetic studies; silica gel; titanium phoshate; zirconium phosphate; NADH; redox mediator; phenolic compounds; hydrogen peroxide; electron transfer; graphite and carbon paste electrodes; peroxidase; biosensor;

   Abstract : This thesis addresses: (1) studies of direct and mediated electron transfer and kinetics of peroxidases on electrodes and the development of amperometric peroxidase-based biosenors, (2) electrochemical and kinetic studies of NADH oxidation at mediator modified electrodes. The direct and mediated electron transfer of horseradish and tobacco peroxidase were investigated on graphite electrodes by using wall-jet electrode methodology. READ MORE

5. 3. Liquid Redox Electrolytes for Dye-Sensitized Solar Cells

   Author : Ze Yu; Lars Kloo; Md K Nazeeruddin; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; dye-sensitized solar cells; electrolytes; ionic liquids; redox couples; additives;

   Abstract : This thesis focuses on liquid redox electrolytes in dye-sensitized solar cells (DSCs). A liquid redox electrolyte, as one of the key constituents in DSCs, typically consists of a redox mediator, additives and a solvent. READ MORE

6. 4. Electrochemical monitoring of living cells

   Author : Christer Spegel; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; PC12; redox; electrochemistry; NAD P H; Single cell; Microchip; S. cerevisiae;

   Abstract : This thesis presents the utilization of electroanalytical methods for analysis of dynamic cellular processes such as exocytosis, intracellular redox reactions and cell surface interactions. Microchips have been designed and manufactured with the purpose of monitoring dopamine exocytosis from single or a small ensemble of PC12 cells. READ MORE

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

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

   Abstract : 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. READ MORE