Hemoglobin magnetism in aqueous solution probed by muon spin relaxation and future applications to brain research

Kanetada NAGAMINE; Koichiro SHIMOMURA; Haruo MIYADERA; Yong-Jae KIM; Ralph Hendrik SCHEICHER; Tara Prasad DAS; Jerome Samson SCHULTZ

doi:10.2183/pjab.83.120

Original Paper

Hemoglobin magnetism in aqueous solution probed by muon spin relaxation and future applications to brain research

Kanetada NAGAMINE, Koichiro SHIMOMURA, Haruo MIYADERA, Yong-Jae KIM, Ralph Hendrik SCHEICHER, Tara Prasad DAS, Jerome Samson SCHULTZ

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Keywords: Muon, muon spin relaxation, hemoglobin, blood magnetism, oxygenation

JOURNAL FREE ACCESS

2007 Volume 83 Issue 4 Pages 120-126

DOI https://doi.org/10.2183/pjab.83.120

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Abstract

A marked difference in spin relaxation behavior due to hemoglobin magnetism was found for positive muons (μ⁺) in deoxyhemoglobin in comparison with that observed in oxyhemoglobin in aqueous solution at room temperature under zero and external longitudinal magnetic fields upto 0.4 Tesla. At the same time, small but significant unique relaxation pattern was observed in nonmagnetic oxyhemoglobin. Combined with our previous measurements on hemoglobin in human blood, application of this type of measurement to the studies of the level of oxygenation in various regions of the human brain is suggested.

(Communicated by Toshimitsu YAMAZAKI, M.J.A.)

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