Results 31 to 40 of about 47,685 (161)

Tris[2,2,6,6-tetramethyl-8-(trimethylsilyl)benzo[1,2-d;4,5-d′]bis(1,3-dithiol)-4-yl]methanol diethyl ether monosolvate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2018
The title compound, a triarylmethanol, C46H64OS12Si3 1, was synthesized via lithiation of tris-2,2,6,6-tetramethylbenzo[1,2-d;4,5-d′]bis[1,3]dithiol-4-yl-methanol, 2, and electrophilic quenching with trimethylsilyl chloride. The current crystal structure
Nico Fleck   +3 more
doaj   +1 more source

Background removal from rapid-scan EPR spectra of nitroxide-based spin labels by minimizing non-quadratic cost functions

open access: yesJournal of Magnetic Resonance Open, 2023
Rapid-scan electron paramagnetic resonance spectroscopy is an emerging technique which substantially improves the signal-to-noise ratio and time resolution compared to conventional continuous-wave experiments.
Florian Johannsen, Malte Drescher
doaj   +1 more source

Clusters of Spin Valve Sensors in 3D Magnetic Field of a Label

open access: yesSensors, 2021
Magnetic field sensors based on the giant magnetoresistance (GMR) effect have a number of practical current and future applications. We report on a modeling of the magnetoresistive response of moving spin-valve (SV) GMR sensors combined in certain ...
Georgy V. Babaytsev   +5 more
doaj   +1 more source

Improvement of a Critical Intermediate Step in the Synthesis of a Nitroxide-Based Spin-Labeled Deoxythymidine Analog

open access: yesMolecules, 2000
Methods to reduce the carboxylic acid moiety in 3-carboxy-2,2,5,5-tetramethylpyrrolin-1-oxyl to an alcohol as an intermediate toward the corresponding aldehyde have been explored and an improved method has been developed.
Peter M. Gannett   +2 more
doaj   +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

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

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