Results 31 to 40 of about 980,274 (295)

Spin transport of excitons [PDF]

open access: yes, 2009
We report on observation of the spin transport of spatially indirect excitons in GaAs/AlGaAs coupled quantum wells (CQW). Exciton spin transport over substantial distances, up to several micrometers in the present work, is achieved due to orders of ...
Butov, L.V.   +10 more
core   +1 more source

SPIN LABELLED HEMOGLOBIN-BASED OXYGEN CARRIERS (HBOC): PREPARATION AND EVALUATION OF IN VIVO / IN VITRO STABILITY

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2020
Site-directed spin labeling and EPR characterization (continuous wave as well as DEER) of two blood substitute candidates is described for the first time: glutaraldehyde-polymerized bovine hemoglobin and the related hemoglobin-albumin copolymer.
Radu SILAGHI-DUMITRESCU   +10 more
doaj   +1 more source

Methodology for rigorous modeling of protein conformational changes by Rosetta using DEER distance restraints.

open access: yesPLoS Computational Biology, 2021
We describe an approach for integrating distance restraints from Double Electron-Electron Resonance (DEER) spectroscopy into Rosetta with the purpose of modeling alternative protein conformations from an initial experimental structure.
Diego Del Alamo   +3 more
doaj   +1 more source

Strategies for synthesis of yardsticks and abaci for nanometre distance measurements by pulsed EPR [PDF]

open access: yes, 2014
Silvia Valera is grateful for support by EPSRC and Bela E. Bode acknowledges support by EastCHEM.Pulsed electron paramagnetic resonance (EPR) techniques have been found to be an efficient tool for elucidation of structure in complex biological systems as
Bode, Bela Ernest   +4 more
core   +1 more source

Low-temperature librations and dynamical transition in proteins at differing hydration levels

open access: yesBiomolecular Concepts, 2022
Hydration of water affects the dynamics and in turn the activity of biomacromolecules. We investigated the dependence of the librational oscillations and the dynamical transition on the hydrating conditions of two globular proteins with different ...
Aloi Erika, Bartucci Rosa, Guzzi Rita
doaj   +1 more source

Electron paramagnetic resonance (EPR) spectral components of spin-labeled lipids in saturated phospholipid bilayers: effect of cholesterol

open access: yesQuímica Nova, 2013
Electron paramagnetic resonance (EPR) spectroscopy was used to study the main structural accommodations of spin labels in bilayers of saturated phosphatidylcholines with acyl chain lengths ranging from 16 to 22 carbon atoms.
Heverton Silva Camargos, Antonio Alonso
doaj   +1 more source

Spin-Labeled Neurospora Mitochondria

open access: yesBiophysical Journal, 1970
Spin-label studies were carried out on Neurospora mitochondria under in vivo and in vitro labeling conditions. A long-chained spin-labeled fatty acid was incorporated by Neurospora and was found in mitochondrial phospholipids. The molecular motion at various temperatures was different from that for the same spin label under in vitro labeling conditions.
Keith, Alec   +2 more
openaire   +3 more sources

New Developments in Spin Labels for Pulsed Dipolar EPR

open access: yesMolecules, 2014
Spin labelling is a chemical technique that enables the integration of a molecule containing an unpaired electron into another framework for study. Given the need to understand the structure, dynamics, and conformational changes of biomacromolecules ...
Alistair J. Fielding   +3 more
doaj   +1 more source

Micromagnetic Simulations of Submicron Vortex Structures for the Detection of Superparamagnetic Labels

open access: yesSensors, 2020
We present a numerical investigation on the detection of superparamagnetic labels using a giant magnetoresistance (GMR) vortex structure. For this purpose, the Landau–Lifshitz–Gilbert equation was solved numerically applying an external z-field for the ...
Lukas Wetterau   +4 more
doaj   +1 more source

Spin-labels in biochemistry

open access: yesBiochemical Society Transactions, 1985
and P-700 (Heathcote & Evans, 1981). The existence of a group of electron acceptors with a range of redox potentials which can be sequentially reduced by the appropriate lowtemperature illumination regimens suggests that these components form an electron-transport chain t o transfer electrons from the excited-state P-700 t o ferredoxin, allowing rapid ...
openaire   +3 more sources

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