electron spin resonance


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e·lec·tron spin res·o·nance (ESR),

a spectrometric method, based on measurement of electron spins and magnetic moments, for detecting and estimating free radicals in reactions and in biologic systems.

electron spin resonance

A term used in MRI for the response of electrons to electromagnetic radiation and magnetic fields at discrete frequencies.

e·lec·tron spin res·o·nance

(ESR) (ĕ-lek'tron spin rez'ŏ-năns)
A spectrometric method, based on measurement of electron spins and magnetic moments, for detecting and estimating free radicals in reactions and in biologic systems.

electron spin resonance

Abbreviation: ESR
A technique used in medical imaging that identifies atoms by their electron spin characteristics.
See also: resonance

Patient discussion about electron spin resonance

Q. high ESR levels? i had ESR test done after complaining of weakness, repeated upper respiratory infection, fever and weight loss. my ESR rate is extremely high 120 a week ago and today 114. chest x-ray negative, stomach Ultra Sound negative, other test relatively ok.... Any suggestions?

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References in periodicals archive ?
Baffa, O., (2008): Electron spin resonance dating of human teeth from Toca da Santa shelter of Sao Raimundo Nonato, Piaui, Brazil.
For electron spin resonance (ESR) studies, we obtained solvent-extractable free radicals from 1,3-butadiene soot from brief liquid-solid extractions with ultra-pure toluene, DMSO:water (4:1, v/v), n-hexane, and 3% aqueous sodium dodecyl sulfate.
Chemists and engineers describe current techniques for investigating polymers using electron spin resonance (ESR).
Electron spin resonance spectroscopy studies have shown that *OH are generated in a DNA-free solution containing Cr(III) and [H.sub.2][O.sub.2] (43).
Although some investigators maintain that the age of the Klasies River Mouth caves remains in question, Caspari and Wolpoff say several converging lines of evidence -- including electron spin resonance data and the presence of extinct animal remains -- convincingly date the site to about 100,000 years ago.
Methodological studies within INTERTRAP will develop an integrated approach using optically stimulated luminescence, thermoluminescence and electron spin resonance investigations.
Also discussed are electron spin resonance, nuclear magnetic resonance, and nuclear-resonance tomography.
However, another technique called electron spin resonance (SN: 4/29/89, p.263) yields an age estimate of only about 60,000 years at the same cave.
electron spin resonance spectrometer x-band (9.8ghz) and q (34ghz) with variable temperature control system (100 k, 600 k) and maximum field electromagnet least 17.5 kg;
Stringer's group calculated the age estimate through electron spin resonance (ESR) dating, a technique used with several archaeological samples over the last decade.
A preliminary estimate, based on a technique called electron spin resonance (ESR), is that the piece of skull is 15,400 years old.
Simic is also using electron spin resonance (ESR) to detect food-borne free radicals--highly reactive chemical compounds that appear in bone or cuticle (such as shrimp shell) after exposure to irradiation.

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