Electron paramagnetic resonance spectra near the spin-glass transition in iron oxide nanoparticles

2000 ◽  
Vol 63 (1) ◽  
Author(s):  
Yu. A. Koksharov ◽  
S. P. Gubin ◽  
I. D. Kosobudsky ◽  
G. Yu. Yurkov ◽  
D. A. Pankratov ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Glass Transition ◽  
Iron Oxide ◽  
Spin Glass ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Paramagnetic Resonance ◽  
Spin Glass Transition ◽  
Electron Paramagnetic

Electron paramagnetic resonance of the “reentrant” insulating spin-glass EuxSr1-xS

1984 ◽  
Vol 52 (2) ◽  
pp. 107-109 ◽  
Author(s):  
F. Mehran ◽  
K.W.H. Stevens ◽  
F. Holtzberg ◽  
R.L. Melcher ◽  
W.J. Fitzpatrick ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Spin Glass ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

Electron paramagnetic resonance as an effective method for a characterization of functionalized iron oxide

2014 ◽  
Vol 75 (5) ◽  
pp. 594-598 ◽  
Author(s):  
Bernadeta Dobosz ◽  
Ryszard Krzyminiewski ◽  
Grzegorz Schroeder ◽  
Joanna Kurczewska
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Iron Oxide ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

scholarly journals Iron Oxide Nanoparticle Uptake in Mouse Brachiocephalic Artery Atherosclerotic Plaque Quantified by T2-Mapping MRI

Pharmaceutics ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 279
Author(s):  
Rik P. M. Moonen ◽  
Bram F. Coolen ◽  
Judith C. Sluimer ◽  
Mat J. A. P. Daemen ◽  
Gustav J. Strijkers
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Iron Oxide ◽  
Atherosclerotic Plaque ◽  
Ex Vivo ◽  
T2 Mapping ◽  
Atherosclerotic Plaques ◽  
Brachiocephalic Artery ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

The purpose of our study was to monitor the iron oxide contrast agent uptake in mouse brachiocephalic artery (BCA) atherosclerotic plaques in vivo by quantitative T2-mapping magnetic resonance imaging (MRI). Female ApoE−/− mice (n = 32) on a 15-week Western-type diet developed advanced plaques in the BCA and were injected with ultra-small superparamagnetic iron oxides (USPIOs). Quantitative in vivo MRI at 9.4 T was performed with a Malcolm-Levitt (MLEV) prepared T2-mapping sequence to monitor the nanoparticle uptake in the atherosclerotic plaque. Ex vivo histology and particle electron paramagnetic resonance (pEPR) were used for validation. Longitudinal high-resolution in vivo T2-value maps were acquired with consistent quality. Average T2 values in the plaque decreased from a baseline value of 34.5 ± 0.6 ms to 24.0 ± 0.4 ms one day after injection and partially recovered to an average T2 of 27 ± 0.5 ms after two days. T2 values were inversely related to iron levels in the plaque as determined by ex vivo particle electron paramagnetic resonance (pEPR). We concluded that MRI T2 mapping facilitates a robust quantitative readout for USPIO uptake in atherosclerotic plaques in arteries near the mouse heart.

scholarly journals A microwave molecular solution based approach towards high-κ-tantalum(v)oxide nanoparticles: synthesis, dielectric properties and electron paramagnetic resonance spectroscopic studies of their defect chemistry

2015 ◽  
Vol 17 (47) ◽  
pp. 31801-31809 ◽  
Author(s):  
R. C. Hoffmann ◽  
M. Kaloumenos ◽  
D. Spiehl ◽  
E. Erdem ◽  
S. Repp ◽  
...  
Keyword(s):  
Thin Films ◽  
Electron Paramagnetic Resonance ◽  
Dielectric Properties ◽  
Spectroscopic Studies ◽  
Defect Chemistry ◽  
Oxide Nanoparticles ◽  
Molecular Approach ◽  
Paramagnetic Resonance ◽  
Nanoparticles Synthesis ◽  
Electron Paramagnetic

Transparent and dense dielectric Ta2O5 thin films are accessible via a solution based molecular approach.

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