Results 1 to 10 of about 33,030 (158)

Tetrachloridocuprates(II)—Synthesis and Electron Paramagnetic Resonance (EPR) Spectroscopy [PDF]

International Journal of Molecular Sciences, 2012
Ionic liquids (ILs) on the basis of metal containing anions and/or cations are of interest for a variety of technical applications e.g., synthesis of particles, magnetic or thermochromic materials. We present the synthesis and the results of electron paramagnetic resonance (EPR) spectroscopic analyses of a series of some new potential ionic liquids ...
Peter Strauch
exaly   +5 more sources

Resonators for Clinical Electron Paramagnetic Resonance (EPR)

, 2020
In pulsed electron paramagnetic resonance (EPR), free-induction decay (FID) or spin echo (SE) signals of unpaired electrons are recorded in the time-domain. In both methods, electromagnetic waves play an important role in the detection of unpaired electrons in EPR spectroscopy.
Hirata H, Petryakov S, Schreiber W.
europepmc   +2 more sources

Detection of Reactive Oxygen and Nitrogen Species by Electron Paramagnetic Resonance (EPR) Technique. [PDF]

Molecules, 2017
During the last decade there has been growing interest in physical-chemical oxidation processes and the behavior of free radicals in living systems. Radicals are known as intermediate species in a variety of biochemical reactions. Numerous techniques, assays and biomarkers have been used to measure reactive oxygen and nitrogen species (ROS and RNS ...
Suzen S, Gurer-Orhan H, Saso L.
europepmc   +8 more sources

Electron Paramagnetic Resonance (EPR) Imaging in Skin: Biophysical and Biochemcial Microscopy

Journal of Investigative Dermatology, 1992
Electron paramagnetic resonance (EPR) is a spectroscopic technique that allows detection of paramagnetic compounds, e.g., free radicals, in skin, and is used for measuring skin membrane fluidity and polarity. EPR imaging is concerned with spatially resolved EPR spectroscopy.
Fuchs, Jürgen, Groth, Norbert, Herrling, Thomas, Milbradt, Ranier, Zimmer, Guido, Packer, Lester   +5 more
openaire   +3 more sources

Rapid-scan electron paramagnetic resonance using an EPR-on-a-Chip sensor [PDF]

Magnetic Resonance, 2021
Abstract. Electron paramagnetic resonance (EPR) spectroscopy is the method of choice to investigate and quantify paramagnetic species in many scientific fields, including materials science and the life sciences. Common EPR spectrometers use electromagnets and microwave (MW) resonators, limiting their application to dedicated lab environments.
S. Künstner, A. Chu, K.-P. Dinse, K.-P. Dinse, A. Schnegg, J. E. McPeak, B. Naydenov, J. Anders, J. Anders, K. Lips, K. Lips   +10 more
openaire   +5 more sources

Electron paramagnetic resonance (EPR) in medical dosimetry

Radiation Measurements, 2006
This paper describes the fundamentals of electron paramagnetic resonance (EPR) and its application to retrospective measurements of clinically significant doses of ionizing radiation. X-band is the most widely used in EPR dosimetry because it represents a good compromise between sensitivity, sample size and water content in the sample. Higher frequency
Schauer, David A, Iwasaki, Akinori, Romanyukha, Alexander A, Swartz, Harold M, Onori, Sandro   +4 more
openaire   +2 more sources

Probing Chirality of Crystals using Electron Paramagnetic Resonance (EPR) spectroscopy

Journal of Molecular Structure, 2022
Abstract One of the most challenging tasks in analytical chemistry is the determination of the chirality (identification of an enantio-meric composition) in solids mainly because of the strict requirements of the pharmaceutical industry for enantiomerically pure drugs.
Gil Otis, Denial Aias, Ilya Grinberg, Sharon Ruthstein, Yitzhak Mastai   +4 more
openaire   +1 more source

Clinical Electron Paramagnetic Resonance (EPR) Oximetry Using India Ink [PDF]

, 2009
Electron paramagnetic resonance (EPR) oximetry can be used to provide direct absolute measurements of pO(2) in living tissue using India ink as an O(2) reporter. In vivo measurements are made using low frequency (1.2 GHz) EPR spectroscopy and surface loop resonators, which enable measurements to be made at superficial sites through a non-invasive ...
Benjamin B, Williams, Nadeem, Khan, Bassem, Zaki, Alan, Hartford, Marc S, Ernstoff, Harold M, Swartz   +5 more
openaire   +2 more sources

Characterization of Paramagnetic Species in Seeds by Electron Paramagnetic Resonance (EPR)

RE&PQJ
Paramagnetic species were characterized in the seeds of radish wild, rice, mustard, wheat, oats, sorghum, sunflower, soybean, cotton, beans, maize and barley by Electron Paramagnetic Resonance (EPR). Some iron complexes such as goethite, hematite, magnetite, and ferrihydrite, normally present in the soil, were also investigated by EPR, since their ...
null V. M. Barbana, null C. L. B. Guedes, null E. Di Mauro   +2 more
openaire   +1 more source

Relativistic Methods for Calculating Electron Paramagnetic Resonance (EPR) Parameters [PDF]

, 2015
Basic concepts for calculating electronic paramagnetic resonance are discussed,with a focus on methods that are suitable for molecules containing heavy ele-ments. Inclusion of relativistic effects is essential in such calculations. Selectedexamples are presented to illustrate practical applications of these theoreticalmethods.
Bolvin, Hélène, Autschbach, Jochen
openaire   +1 more source