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A Computational Journey across Nitroxide Radicals: From Structure to Spectroscopic Properties and Beyond [PDF]

open access: yesMolecules, 2021
Nitroxide radicals are characterized by a long-lived open-shell electronic ground state and are strongly sensitive to the chemical environment, thus representing ideal spin probes and spin labels for paramagnetic biomolecules and materials.
Vincenzo Barone   +3 more
doaj   +2 more sources

Keep Your TEMPO Up: Nitroxide Radicals as Sensors of Intermolecular Interactions [PDF]

open access: yesMolecules
This study examines experimental data on the influence of the surrounding medium and non-covalent interactions on the isotropic hyperfine coupling constant, Aiso(14N), of the stable nitroxide radical 2,2,6,6-Tetramethylpiperidin-1-yl)oxyl (TEMPO) in ...
Ilya G. Shenderovich
doaj   +2 more sources

Strategies for the Synthesis of Yardsticks and Abaci for Nanometre Distance Measurements by Pulsed EPR [PDF]

open access: yesMolecules, 2014
Pulsed electron paramagnetic resonance (EPR) techniques have been found to be efficient tools for the elucidation of structure in complex biological systems as they give access to distances in the nanometre range.
Silvia Valera, Bela E. Bode
doaj   +8 more sources

Towards Metabolic Organic Radical Contrast Agents (mORCAs) for Magnetic Resonance Imaging [PDF]

open access: yesMolecules
We report two conjugates of gem-diethyl pyrroline nitroxide radicals with D-mannosamine as potential metabolic organic radical contrast agents, mORCAs, circumventing the need for biorthogonal reactions.
Shuyang Zhang   +8 more
doaj   +2 more sources

Study of Molecular Dimer Morphology Based on Organic Spin Centers: Nitronyl Nitroxide Radicals [PDF]

open access: yesMolecules
In this work, in order to investigate the short-range interactions between molecules, the spin-magnetic unit nitronyl nitroxide (NN) was introduced to synthesize self-assembly single radical molecules with hydrogen bond donors and acceptors.
Dongdong Wei   +6 more
doaj   +2 more sources

Magnetic Mixed Micelles Composed of a Non-Ionic Surfactant and Nitroxide Radicals Containing a D-Glucosamine Unit: Preparation, Stability, and Biomedical Application [PDF]

open access: yesPharmaceutics, 2019
Metal-free magnetic mixed micelles (mean diameter: < 20 nm) were prepared by mixing the biocompatible non-ionic surfactant Tween 80 and the non-toxic, hydrophobic pyrrolidine-N-oxyl radicals bearing a D-glucosamine unit in pH 7.4 phosphate-buffered ...
Kota Nagura   +11 more
doaj   +2 more sources

Reduction and pH-responsive performance of nitroxide radical-containing copolymers probed by EPR spectroscopy

open access: yesMagnetic Resonance Letters, 2022
Although stimuli-responsive polymers have appeared as promising materials for drug administration, the effectiveness of these materials on various bioinspired stimuli is still open for dispute.
Md Alim Uddin, Haojie Yu, Li Wang
doaj   +1 more source

Fluorinated Organic Paramagnetic Building Blocks for Cross-Coupling Reactions

open access: yesMolecules, 2020
New stable polyfluorinated nitroxide radicals for use in cross-coupling reactions, namely, N-tert-butyl-N-oxyamino-2,3,5,6-tetrafluoro-4-iodobenzene and N-tert-butyl-N-oxyamino-2,3,5,6-tetrafluoro-4-ethynylbenzene, were prepared from perfluoroiodobenzene.
Larisa V. Politanskaya   +5 more
doaj   +1 more source

2-Imidazoline Nitroxide Derivatives of Cymantrene

open access: yesMolecules, 2022
The 2-imidazoline nitroxide derivatives of cymantrene—2-(η5-cyclopentadienyl)tricarbonylmanganese(I)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (NNMn) and 2-(η5-cyclopentadienyl)tricarbonylmanganese(I)-4,4,5,5-tetramethyl-4,5-dihydro-1H ...
Kseniya Maryunina   +11 more
doaj   +1 more source

Recovery of Cognitive Dysfunction via Orally Administered Redox-Polymer Nanotherapeutics in SAMP8 Mice. [PDF]

open access: yesPLoS ONE, 2015
Excessively generated reactive oxygen species are associated with age-related neurodegenerative diseases. We investigated whether scavenging of reactive oxygen species in the brain by orally administered redox nanoparticles, prepared by self-assembly of ...
Pennapa Chonpathompikunlert   +5 more
doaj   +1 more source

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