Results 221 to 230 of about 109,666 (262)

Spin probe reduction in cells and tissues

Magnetic Resonance in Medicine, 1988
AbstractThe reduction rates of different nitroxides in rat lung tissue were measured by electron paramagnetic resonance. We confirmed that the reduction rate of nitroxide spin probe molecules is coupled with their structure and transport characteristics. Oxygen was found to slow down the reduction rate of nitroxides in rat lung tissues. On the basis of
Kveder, Marina, Šentjurc, Marjeta, Schara, Milan   +2 more
openaire   +3 more sources

BIOENERGETIC STUDIES OF CELLS WITH SPIN PROBES*

Annals of the New York Academy of Sciences, 1983
Nitroxide spin labels have been used successfully for a diversity of biological studies. Recently another application of spin labels has evolved - the measurement of bioenergetic parameters. These bioenergetic parameters are: cell volumes, pH and electrical gradients across membranes, electrical surface and boundary potentials, and one-electron ...
R J, Mehlhorn, L, Packer
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Chiral properties of tetrathiatriarylmethyl spin probes

Chemical Communications, 2011
We report that tetrathiatriarylmethyl (trityl) EPR probes are chiral molecules at room temperature, the two stereoisomers that differ in their helicity being configurationally stable enough to be separated and stored independently.
Benoît, Driesschaert, Raphaël, Robiette, Fabio, Lucaccioni, Bernard, Gallez, Jacqueline, Marchand-Brynaert   +4 more
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Local Probe for Spin-Orbit Interaction

Physical Review Letters, 1988
The branching ratio of core-valence transitions in x-ray absorption spectroscopy is linearly related to the expectation value of the spin-orbit operator in the valence states. This offers a direct method to determine the spin-orbit interaction in the local electronic structure of metal compounds and alloys. The method is complementary to susceptibility
Thole, B. T., Van der Laan, G.
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Spin-Label Probes

1974
Spin-labeling studies employ nitroxides with the following general structure: (see also Fig. 8.1).
Donald F. H. Wallach, Richard J. Winzler
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Spin probes in micelles

Russian Chemical Reviews, 1994
The results of studies of the molecular dynamics and structure of direct, polymeric and reverse micelles by the spin probe method using stationary ESR spectroscopy and electron spin echo spectroscopy are considered. The spin probes permit the determination of the characteristic rotation times, shapes and sizes of micelles and the local molecular ...
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ChemInform Abstract: Spin Labels and Spin Probes

ChemInform, 2012
AbstractReview: 506 refs.
David Bardelang, Micael Hardy, Olivier Ouari, Paul Tordo   +3 more
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Probing Absolute Spin Polarization at the Nanoscale

Nano Letters, 2014
Probing absolute values of spin polarization at the nanoscale offers insight into the fundamental mechanisms of spin-dependent transport. Employing the Zeeman splitting in superconducting tips (Meservey-Tedrow-Fulde effect), we introduce a novel spin-polarized scanning tunneling microscopy that combines the probing capability of the absolute values of ...
Eltschka, Matthias, Jaeck, Berthold, Assig, Maximilian, Kondrashov, Oleg V., Skvortsov, Mikhail A., Etzkorn, Markus, Ast, Christian R., Kern, Klaus   +7 more
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Spin current as a probe of quantum materials

Nature Materials, 2019
Spin current historically referred to the flow of electrons carrying spin information, in particular since the discovery of giant magnetoresistance in the 1980s. Recently, it has been found that spin current can also be mediated by spin-triplet supercurrent, superconducting quasiparticles, spinons, magnons, spin superfluidity and so on. Here, we review
Wei Han, Sadamichi Maekawa, Xin-Cheng Xie   +2 more
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A Spin-Labelled Fluorescent Probe for Membranes

Canadian Journal of Biochemistry, 1973
The compound N-(1-oxyl-2,2,6,6-tetramethyl-4-piperidinyl)-5-dimethylammonaphthalene-sulfonamide (DNS-SL(6)) was used as a probe to investigate the egg lecithin – cholesterol – water system. DNS-SL(6) is localized in the polar head group regions of the phospholipid bilayers and undergoes rapid anisotropic motion.
R A, Long, J C, Hsia
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