Sökning: "redox sensor"

Visar resultat 16 - 20 av 23 avhandlingar innehållade orden redox sensor.

1. 16. In vivo functions of mammalian glutaredoxin 2

   Författare :Maria Lönn; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Oxygen is essential for all respirating life forms. However, the use of molecular oxygen as terminal electron acceptor of the respiratory electron chain leads to the generation of reactive oxygen species (ROS) as product of incomplete oxygen reduction. To different extends, ROS can react with and damage DNA, lipids and proteins. LÄS MER

3. 17. Isoforms of mammalian glutaredoxin 2

   Författare :Christoph Hudemann; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Iron-sulfur proteins are characterized by the presence of iron-sulfur clusters containing sulfide linked iron centers in variable oxidation states. Glutaredoxins (Grx) are, among other redoxins, increasingly recognized to be involved at the interface between redox regulation, iron metabolism and iron-cluster biosynthesis. LÄS MER

4. 18. EPR Studies of Ruthenium-Manganese Complexes as Biomimetic Models for Photosystem II - Approaching Artificial Photosynthesis

   Författare :Ping Huang; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; WOC; bridging-mode modification; water oxidation; EPR; Ru-Mn complexes; PSII; Artificial Photosynthesis; D donor -S sensitizer -A acceptor molecular module; High Mn valence states.; Biochemistry; Metabolism; Biokemi; metabolism;

   Sammanfattning : In natural photosynthesis, solar energy is converted to chemical energy by photosynthetic reaction centers. In green plants and algae, Photosystem II (PSII) and Photosystem I (PSI) absorb light and utilize the charge separation reactions to convert solar energy to chemical energy. LÄS MER

5. 19. Spectroelectrochemistry with Ultrathin lon-Selective Membranes

   Författare :Yujie Liu; Gaston A. Crespo; Maria Cuartero; Alvaro Colina Santamaria; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ion-selective electrodes; electron-transfer and ion-transfer processes; spectroelectrochemistry; ultrathin membranes; thin-layer voltammetry; coulometry; Jonselektiva elektroder; elektronöverförings- och jonöverföringsprocesser; spektroelektrokemi; ultratunna membran; tunnskiktsvoltammetri; coulometri; Kemi; Chemistry;

   Sammanfattning : Rapid and decentralized chemical sensing strategies are highly demanded in contemporary society to monitor ongoing processes relevant to the environment, food analysis, healthcare, sports performance, etc. In this context, ion-selective electrodes (ISEs) based on polymeric membranes have emerged as a promising analytical technique owing to their features of low cost, portability, versatility, and energy efficiency. LÄS MER

7. 20. Oxidative damage and the DNA glycosylase MutYH

   Författare :Kristina Jansson; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Oxidative damage; 8-oxo-7; 8-dihydro-2′-deoxyguanosine; Base excision repair; DNA glycosylase; Mismatch repair; DNA damage checkpoint; 9-1-1 complex; Glutathione-S-transferases; Colon cancer.;

   Sammanfattning : The DNA glycosylase MutYH is highly conserved throughout evolution, and homologs are found in most eukaryotes and prokaryotes examined. MutYH functions as a base excision repair DNA glycosylase that excises adenines misincorporated opposite 8-oxo-7,8-dihydro-2′-deoxyguanosine (8-oxodG), one of the most stable products of oxidative DNA damage. LÄS MER