paramagnetic resonance
Anoxia/Reoxygenation of Equine Endothelial Cells Produce Reactive Oxygen Species: An Oxymetric and Electron Paramagnetic Resonance Investigation
... MATERIALS AND METHODS EC cultures were obtained from equine carotid. Detached cells (10 7 ) were submitted either to 3 cycles of 20min an- oxia followed by reoxygenation in presence of POBN (50mM)/ethanol (2%) mixture as ...
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en fr Development of Heterodyne High Field / High Frequency Electron Paramagnetic Resonance Spectrometer at 285 GHz Développement d'un Spectromètre de Résonance Paramagnétique Electronique Haute Fréquence / Haut Champ Hétérodyne fonctionnant autour de 285 GHz
... Electron Paramagnetic Resonance Spectrometer at 285 GHz The thesis is devoted to an extension of the existing continuous wave high frequency electron param- agnetic resonance (cw-HF-EPR) spectrometer ...
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Electron paramagnetic resonance image reconstruction with total variation and curvelets regularization
... Electron paramagnetic resonance imaging (EPRI) is a technology that maps the spatial distribution of a paramagnetic species [16], making it part of the molecular imaging technologies, by opposition ...
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An elastase activity reporter for Electronic Paramagnetic Resonance (EPR) and Overhauser-enhanced Magnetic Resonance Imaging (OMRI) as a line-shifting nitroxide
... Herein we present the synthesis of a MeO-Suc-(Ala) 2 -Pro-Val-nitroxide, a line-shifting elastase activity probe suitable for Electron Paramagnetic Resonance spectroscopy (EPR) and Overhauser-enhanced ...
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Electron paramagnetic resonance of radicals induced in drugs and excipients by radiation or mechanical treatments
... 81013 Albi CT cedex 09, France Abstract Radiation as well as mechanical treatments induced in drugs and excipients radicals, which can be studied by electron paramagnetic resonance. A special attention is ...
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Selective On/Off-Nitroxides as Radical Probes to Investigate Non-radical Enzymatic Activity by Electron Paramagnetic Resonance
... Eric Thiaudire, [b] and Nicolas Vanthuyne [e] Abstract: A nitroxide carrying a peptide specific to the binding pocket of the serine proteases chymotrypsin and cathepsin G is prepared. This peptide is attached as an enol ...
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Relativistic Methods for Calculating Electron Paramagnetic Resonance (EPR) Parameters
... a k in the direction of the Np–F axes and a degenerate pair of a ⊥ perpendicular to the Np–F axes, with a k = −132, a ⊥ = −42 MHz experimentally. The unpaired elec- tron is described at the SR level by a non-bonding Np ...
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In Situ Electron Paramagnetic Resonance Correlated Spectroscopy and Imaging: A Tool for Lithium-Ion Batteries to Investigate Metallic Lithium Sub-Micrometric Structures Created by Plating and Stripping
... of time. (c) EPR spectra of the cell recorded in the pristine state (bulk Li electrodes) and after the short circuit (dendritic Li). The resonance field is H res =346.82 mT for the bulk Li signal and H res =346.7 ...
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Electron paramagnetic resonance characterization of tetrahydrobiopterin radical formation in bacterial nitric oxide synthase compared to mammalian nitric oxide synthase.
... 5,6,7,8-tetrahydro-L-biopterin; HS-5c, high-spin hexacoordinated iron; NO, nitric oxide; NOHA, N u -hydroxy-L-arginine; NOS, nitric oxide syn- thase; NOSoxy, oxygenase domain of NOS; bac[r] ...
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Detection of Superoxide Radical in Adherent Living Cells by Electron Paramagnetic Resonance (EPR) Spectroscopy Using Cyclic Nitrones
... paramagnetic impurities. If contamination is detected, clean the Dewar insert and TM cavity according to the user’s manual. 12. The final concentration of DMSO in the growth medium is 0.5 % and is well tolerated ...
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Use of spin traps to detect superoxide production in living cells by electron paramagnetic resonance (EPR) spectroscopy
... It is essential that spin trap solutions are free of contamination by hydroxylamine and nitroxide impurities that can impair O 2•- detection and give artifacts. Contaminating hydroxylamines can be tested by treatment ...
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Electron-paramagnetic-resonance study of the microscopic structure of the Si(001)- SiO 2 interface
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ...
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Electron paramagnetic resonance imaging for real-time monitoring of Li-ion batteries
... have very different line widths of 1.5 G for the paramagnetic Li metal particles and between 40 and 50 G for the Ru 5 þ and the peroxo/superoxo species, respectively. This allows us to dis- criminate both ...
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An elastase activity reporter for Electronic Paramagnetic Resonance (EPR) and Overhauser-enhanced Magnetic Resonance Imaging (OMRI) as a line-shifting nitroxide
... All OMRI experiments herein validated the use of the substrate MeO-Suc-(Ala) 2 -Pro-Val-nitroxide as a specific proteolysis probe for OMRI. Future in vivo experiments of proteolysis imaging will be done to visualized ...
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Atomic Resonance and Scattering
... We are therefore justified in assuming that all of the deflection arises from the Van der Waals term in the potential, and this permits us to determine the impa[r] ...
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Determination of paramagnetic concentrations inside a diamagnetic matrix using solid-state NMR
... 2.1.5 Influence of structure: Phosphate glasses A series of metaphosphate glasses (characterized by a theoretical Q 2 proportion of 100 %) were synthesized according to Pukhaya et al. 21 X-ray Powder Diffraction confirms ...
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Probing the antiferromagnetic-paramagnetic transition in artificial spin ice by tuning interactions
... On the other hand, decreasing the rotation angle of the array from 45 ◦ to 40 ◦ does not change the Bragg peaks on magnetic structure factor or the prevalence of type 2 on vertex populat[r] ...
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3D Magnetic Resonance Spirometry
... afflictions. This technique is non-invasive, simple, widely available, robust, repeatable and reproducible. Yet, its outcomes rely on the patient’s cooperation and provide only global information over the lung. With 3D ...
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Atomic Resonance and Scattering
... In 1986 we completed construction of our neutral trap apparatus and began doing ex- periments with it. Our first successful run has advanced the state of the neu[r] ...
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Atomic Resonance and Scattering
... In order to observe this double resonance effect, RF power to the proton is modulated off-on, and the electron signal is monitored with a lock-in amplifier at th[r] ...
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