Sökning: "Direct electron transfer"
Visar resultat 16 - 20 av 72 avhandlingar innehållade orden Direct electron transfer.
16. Direct electron transfer between cellobiose dehydrogenase and solidmetal or graphite electrodes
Sammanfattning : Direct electron transfer (ET) between the enzyme cellobiose dehydrogenase (CDH) and different metal and graphite electrodes has been investigated. The heme domain of the CDH has been shown to play a key-role in the direct ET. A mechanism for the ET between CDH and graphite electrodes was proposed. LÄS MER
17. Shining Light on Molecules : Electron Transfer Processes in Model Systems for Solar Energy Conversion Investigated by Transient Absorption Spectroscopy
Sammanfattning : In the recent years, solar energy conversion has attracted a huge research interest due to the potential application for limiting the greenhouse effect. In many solar cells and solar fuel cells, understanding of charge transfer (CT) and recombination is important for future improvement of the overall efficiency. LÄS MER
18. Electron transport to nitrogenase in Rhodospirillum rubrum
Sammanfattning : Biological nitrogen fixation is a key step in the global nitrogen cycle. In this process, dinitrogen in the air is converted to biologically accessible ammonia, which is further assimilated in to the biosphere. LÄS MER
19. Proton transfer across and along biological membranes
Sammanfattning : Proton-transfer reactions belong to the most prevalent reactions in the biosphere and make life on Earth possible, as they are central to energy conversion. In most known organisms, protons are translocated from one side of a membrane to the other, which generates an electrochemical gradient that drives ATP synthesis. LÄS MER
20. Ultrafast Photoionization Dynamics Studied with Coincidence Momentum Imaging Spectrometers
Sammanfattning : The time scale of the dynamics in atoms and molecules varies from attoseconds (10-18) to picoseconds (10-12) depending on the size of the particles. To study such dynamics, ultrafast light pulses are needed to trigger and capture the reaction. One of the most direct methods consists in ionizing the system and observing the following response. LÄS MER