The objective of this work is t o shed light on electron transport through sub-micron semiconductor structures, where electronic state quantization, electron-electron interactions and electron-phonon interactions are important. We concentrate here on the most developed vertical quantum device, the double barrier resonant tunneling diode. In this work we analyze particle interactions in two stru...

We have theoretically investigated the time-evolution of electron transport from a twodimensional electron system (2DES) to a quantum dot (QD). We clearly showed that the coherent electron transport is remarkably modified depending on the initial electronic state in the 2DES. The electron transport from the 2DES to the QD is strongly enhanced when the initial state of electron in the 2DES is lo...

The thylakoid membranes of cyanobacteria are the major sites of respiratory electron transport as well as photosynthetic light reactions. The photosynthetic and respiratory electron transport chains share some components, and their presence in the same membrane opens up the possibility for a variety of "unorthodox" electron transport routes. Many of the theoretically possible electron transport...

The regulation of the mitochondrial electron transport chain is central to the control of cellular homeostasis. There are significant gaps in our understanding of how the expression of the mitochondrial and nuclear genome-encoded components of the electron transport chain are co-ordinated, and how the assembly of the protein complexes that constitute the electron transport chain are regulated. ...

Aerobic and anaerobic respiratory systems allow cells to transport the electrons to terminal electron acceptors. The quinone (ubiquinone or menaquinone) pool is central to the electron transport chain. In the majority of gram-positive bacteria, vitamin K2 (menaquinone) is the sole quinone in the electron transport chain, and thus, the bacterial enzymes catalyzing the synthesis of menaquinone ar...

Although the mitochondrial electron transport chain (ETC) is best known for its role in ATP synthesis, two studies, Sullivan et al. and Birsoy et al., conclude that its only essential function in proliferating cells is making aspartate (D).

• Introduction • Electron Flow as Source of ATP Energy • Site of Oxidative Phosphorylation • ATP Synthetase (=F0F1 ATPase) • Electron-Transferring Reactions • Standard OxidationReduction Potential • Electron Carriers • Electron-Transport Complexes • Incomplete Reduction of Oxygen • Mechanisms of Oxidative Phosphorylation • Oxidation of Extramitochondrial NADH • ATP Yield and P : O Ratio • Roles...