Results 211 to 220 of about 518,104 (262)
Some of the next articles are maybe not open access.
Electron transfer mechanisms in electron transfer chains
Journal of Biological Physics, 1973Mechanisms 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
openaire +1 more source
Studies on the electron transfer system IV. The electron transfer particle
Biochimica et Biophysica Acta, 1956The preparation and properties of an electron transfer particle (ETP) obtained from beef heart mitochondria are described. ETP catalyzes the oxidation of 5.7 μmoles DPNH and 2 μmoles succinate per min per mg at 38°. This specific activity is 3 to 5 times greater than that of the original mitochondrial suspension.
F L, CRANE, J L, GLENN, D E, GREEN
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
Intramolecular dissociative electron transfer
Chemical Society Reviews, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
ANTONELLO, SABRINA, MARAN, FLAVIO
openaire +3 more sources
Photoinduced Electron Transfer and Electronic Energy Transfer in Naphthyl-Appended Cyclams
Inorganic Chemistry, 2001A series of novel macrocyclic tetraaza ligands that incorporate a naphthalene moiety as a photoactive chromophore have been prepared and structurally characterized as their Cu(II) complexes. Variable-temperature photophysical studies have concluded that the luminescence quenching evident in the Cu(II) complexes is due to intramolecular electronic ...
Bernhardt, Paul V. +2 more
openaire +5 more sources
Electron transfer in quinoproteins
Archives of Biochemistry and Biophysics, 2004Soluble quinoprotein dehydrogenases oxidize a wide range of sugar, alcohol, amine, and aldehyde substrates. The physiological electron acceptors for these enzymes are not pyridine nucleotides but are other soluble redox proteins. This makes these enzymes and their electron acceptors excellent systems with which to study mechanisms of long-range ...
openaire +2 more sources
Proton-Assisted Electron Transfer
The Journal of Physical Chemistry A, 1998The case for highly selective long range “proton assisted” electron transfer in biomolecules (PA-ET), involving the hopping of protons and hydrogen atoms along H-bond chains connecting two redox sites, is discussed and analyzed on systems closely resembling typical biochemical sequences. These systems consist of an electron acceptor, an H-bond/covalent-
PELUSO, Andrea +3 more
openaire +5 more sources
Photochemically Induced Electron Transfer
Methods, 2001Biochemical reactions involving electron transfer between substrates or enzyme cofactors are both common and physiologically important; they have been studied by means of a variety of techniques. In this paper we review the application of photochemical methods to the study of intramolecular electron transfer in hemoproteins, thus selecting a small ...
BELLELLI, Andrea +3 more
openaire +2 more sources
2023
This chapter demonstrates how electron transfer rates can be expressed in terms of Gibbs activation energies. Many biological processes depend on the transfer of electrons between electron donors and acceptors. In some instances, the electron donors and acceptors are free to diffuse in the aqueous solutions of the cell or in the fluid bilayers that ...
Peter Atkins +3 more
openaire +2 more sources
This chapter demonstrates how electron transfer rates can be expressed in terms of Gibbs activation energies. Many biological processes depend on the transfer of electrons between electron donors and acceptors. In some instances, the electron donors and acceptors are free to diffuse in the aqueous solutions of the cell or in the fluid bilayers that ...
Peter Atkins +3 more
openaire +2 more sources