Models of slow rotational mobility of paramagnetic probes in glassy media

2000 ◽  
Vol 49 (6) ◽  
pp. 1059-1067 ◽  
Author(s):  
A. Kh. Vorob'ev ◽  
V. S. Gurman ◽  
T. A. Klimenko
Keyword(s):  
Rotational Mobility ◽  
Paramagnetic Probes ◽  
Glassy Media

Jump in the Rotational Mobility of Benzene Induced by the Clathrate Hydrate Formation

1995 ◽  
Vol 99 (5) ◽  
pp. 1377-1379 ◽  
Author(s):  
Masaru Nakahara ◽  
Chihiro Wakai ◽  
Nobuyuki Matubayasi
Keyword(s):  
Hydrate Formation ◽  
Clathrate Hydrate ◽  
Rotational Mobility

EPR INVESTIGATIONS OF CuO-B2O3-PbO-Ag2O GLASSES

2009 ◽  
Vol 23 (05) ◽  
pp. 747-753
Author(s):  
VIOREL TIMAR ◽  
RALUCA CICEO-LUCÃCEL ◽  
OCTAVIA HULPUŞ ◽  
IOAN ARDELEAN
Keyword(s):  
Copper Content ◽  
Structural Modification ◽  
Magnetic Interactions ◽  
Paramagnetic Resonance ◽  
Distorted Octahedral ◽  
Structural Details ◽  
Paramagnetic Probes ◽  
Parallel Band ◽  
Electron Paramagnetic ◽  
Epr Experiments

Glasses of the x CuO · (100 - x)[3 B 2 O 3· 0.9 PbO · 0.1 Ag 2 O ] system, with 0.5 ≤ x ≤ 10 mol %, were prepared and investigated by means of electron paramagnetic resonance (EPR) measurements. Structural details of different diamagnetic vitreous systems may be revealed by the Cu 2+ ions, frequently used as paramagnetic probes in EPR experiments. The shape and the intensity of the recorded EPR lines are dependent on the CuO content. The EPR spectra are asymmetric, with characteristics for Cu 2+ (3d9) ions in axially-distorted octahedral symmetric sites. Due to the interaction of the unpaired electron spin (s = 1/2) with the nuclear one (I = 3/2) of Cu 2+ ions, the characteristic hyperfine structure (hfs) is visible for small concentrations of CuO in both spectra bands (parallel and perpendicular). The increasing of copper content in the samples generates the EPR absorption spectra modification, the hfs being resolved in the parallel band of the spectra in whole compositional range, while in the perpendicular band, hfs disappear for x > 3 mol %. This fact indicates the structural modification in Cu 2+ vicinity and possible magnetic interactions.

scholarly journals Intracellular Hypoxia of Tumor Tissue Estimated by Noninvasive Electron Paramagnetic Resonance Oximetry Technique Using Paramagnetic Probes

2011 ◽  
Vol 34 (1) ◽  
pp. 142-145 ◽  
Author(s):  
Atsuko Matsumoto ◽  
Ken-ichiro Matsumoto ◽  
Shingo Matsumoto ◽  
Fuminori Hyodo ◽  
Anastasia L. Sowers ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Tumor Tissue ◽  
Paramagnetic Resonance ◽  
Paramagnetic Probes ◽  
Electron Paramagnetic

Time-averaged phosphorescence depolarization in the study of membrane protein rotational mobility

1985 ◽  
Vol 13 (5) ◽  
pp. 927-928
Author(s):  
ELAINE K. MURRAY ◽  
COLIN J. RESTALL ◽  
MARK COKE ◽  
DENNIS CHAPMAN
Keyword(s):  
Membrane Protein ◽  
Rotational Mobility

scholarly journals Nanoscale separation of molecular species based on their rotational mobility

2008 ◽  
Vol 16 (25) ◽  
pp. 21093 ◽  
Author(s):  
Ilaria Testa ◽  
Andreas Schönle ◽  
Claas v. Middendorff ◽  
Claudia Geisler ◽  
Rebecca Medda ◽  
...  
Keyword(s):  
Molecular Species ◽  
Rotational Mobility ◽  
Nanoscale Separation
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