Results 51 to 60 of about 1,474,242 (303)

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Spin and energy transfer in nanocrystals without transport of charge [PDF]

open access: yes, 2003
We describe a mechanism of spin transfer between individual quantum dots that does not require tunneling. Incident circularly-polarized photons create inter-band excitons with non-zero electron spin in the first quantum dot.
A. Javier   +28 more
core   +3 more sources

Coulomb effects in polarization transfer in elastic antiproton and proton electron scattering at low energies

open access: yes, 2007
The influence of Coulomb distortion on the polarization transfer in elastic proton and antiproton electron scattering at low energies is calculated in a distorted wave Born approximation.
Arenhoevel, H.
core   +1 more source

Linear, third- and fifth-order nonlinear spectroscopy of a charge transfer system coupled to an underdamped vibration [PDF]

open access: yes, 2015
We study hole, electron and exciton transport in a charge transfer system in the presence of underdamped vibrational motion. We analyze the signature of these processes in the linear and third-, and fifth-order nonlinear electronic spectra.
Dijkstra, Arend G., Tanimura, Yoshitaka
core   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Oxide/Electrolyte interface: Electron transfer phenomena

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2000
Electron transfer on a titanium dioxide/electrolyte solution interface has been studied. As observed by other researchers on similar interfaces (TiO2- and ZnO- electrolyte solution), slow consumption of OH- ions was found.
Fernández-Ibáñez, P.   +2 more
doaj  

Quantum breaking of ergodicity in semi-classical charge transfer dynamics

open access: yes, 2015
Does electron transfer (ET) kinetics within a single-electron trajectory description always coincide with the ensemble description? This fundamental question of ergodic behavior is scrutinized within a very basic semi-classical curve-crossing problem of ...
Goychuk, Igor
core   +1 more source

Does Koopmans\u27 Paradigm for 1-Electron Oxidation Always Hold? Breakdown of IP/Eox Relationship for p-Hydroquinone Ethers and the Role of Methoxy Group Rotation [PDF]

open access: yes, 2015
Koopmans’ paradigm states that electron loss occurs from HOMO, thus forming the basis for the observed linear relationships between HOMO/IP, HOMO/Eox, and IP/Eox.
Boddeda, Anitha   +3 more
core   +3 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Electron Transfer At Metal/Molecule Interface

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
   Theoretically description of the electron transfer of the electron transfer of met/mol has been investigated in this work according to the quantum theory.
Hadi J. M. Al-Agealy, Mohammed Z. Fadhil
doaj  

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