Results 251 to 260 of about 1,460,967 (299)

Electron transfer mechanisms in electron transfer chains

Journal of Biological Physics, 1973
Mechanisms responsible for the transfer of electrons through mitochondrial and photosynthetic electron transport chains are considered. Mechanisms considered include diffusion, ligand-mediated transfer, tunneling and semiconduction. Perturbations which create satisfactory conditions for electron transfer are also considered. There is a brief discussion
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PROTON-COUPLED ELECTRON TRANSFER

Annual Review of Physical Chemistry, 1998
▪ Abstract  Proton-coupled electron transfer (PCET) is an important mechanism for charge transfer in a wide variety of systems including biology- and materials-oriented venues. We review several areas where the transfer of an electron and proton is tightly coupled and discuss model systems that can provide an experimental basis for a test of PCET ...
R I, Cukier, D G, Nocera
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Two-Electron Transfer Pathways

The Journal of Physical Chemistry B, 2015
The frontiers of electron-transfer chemistry demand that we develop theoretical frameworks to describe the delivery of multiple electrons, atoms, and ions in molecular systems. When electrons move over long distances through high barriers, where the probability for thermal population of oxidized or reduced bridge-localized states is very small, the ...
Lin, J., Balamurugan, D., Zhang, P., Skourtis, Spiros S., Beratan, David N., Lin, J., Balamurugan, D., Zhang, P., Skourtis, Spiros S., Beratan, David N.   +9 more
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Proton-Coupled Electron Transfer

Chemical Reviews, 2012
▪ Abstract Proton-coupled electron transfer (PCET) is an important mechanism for charge transfer in a wide variety of systems including biology- and materials-oriented venues.
David R, Weinberg, Christopher J, Gagliardi, Jonathan F, Hull, Christine Fecenko, Murphy, Caleb A, Kent, Brittany C, Westlake, Amit, Paul, Daniel H, Ess, Dewey Granville, McCafferty, Thomas J, Meyer   +9 more
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Electron transfer in peptides

Chemical Society Reviews, 2015
In this review, we discuss the factors that influence electron transfer in peptides.
Afzal, Shah, Bimalendu, Adhikari, Sanela, Martic, Azeema, Munir, Suniya, Shahzad, Khurshid, Ahmad, Heinz-Bernhard, Kraatz   +6 more
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Electron transfer in biology

Molecular Physics, 1989
Table VII presents a list of the topics I have discussed. Underlying biological electron transfer which employs metal ions overwhelmingly is the intimacy of the interaction between metal ion properties and protein properties. Attacking the problems is attacking a cornerstone of life - bioenergetics. It is appropriate that this is the Heyrovsky Memorial
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Electron transfer in DNA

Current Opinion in Chemical Biology, 2002
Electrons migrate over long distances along the DNA in a multistep hopping process where the rate of each step depends strongly upon its length. The efficiency of this process is not only determined by the electron transfer rates but also by competing reactions with water, in which the charge carriers are trapped.
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Nonadiabatic anharmonic electron transfer

The Journal of Chemical Physics, 2013
The effect of an inner sphere, local mode vibration on an electron transfer is modeled using the nonadiabatic transition probability (rate) expression together with both the anharmonic Morse and the harmonic oscillator potential. For an anharmonic inner sphere mode, a variational analysis uses harmonic oscillator basis functions to overcome the ...
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Electron transfer

1995
This chapter focuses on biological electron-transfers, which have been divided into two categories. Intramolecular electron-transfer occurs at fixed sites within a single protein, while intermolecular electron-transfer occurs between sites on different proteins.
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Biological electron-transfer reactions

Essays in Biochemistry, 1999
A wide range of biological processes makes extensive use of electron-transfer reactions. Rigorous characterization of a biological electron-transfer reaction requires a combination of kinetic, thermodynamic, structural and theoretical methods. The rate of electron transfer from an electron donor to an electron acceptor through a protein is dependent on
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