Proceedings of the 2nd International Symposium on Science at J-Parc — Unlocking the Mysteries of Life, Matter and the Universe 2015
DOI: 10.7566/jpscp.8.033007
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Hydration Effect on Electron Transfer in Cytochrome c Monitored by μSR

Abstract: The SR measurements of oxidized form of cytochrome c of horse heart were carried out at RIKEN-RAL and at J-PARC MUSE. Cytochrome c is one of the members of respiratory chain in mitochondria. The muon spin time relaxation spectra of the samples wetted with H 2 O and D 2 O, whose water contents were approximately 20 wt.%, were fitted using Risch-Kehr (R-K) function. The longitudinal relaxation parameter () showed an inverse dependence on B ext , in the region from 1000 to 3950 G at room temperature and the reg… Show more

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Cited by 15 publications
(14 citation statements)
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“…m + SR is a common technique for investigating magnetic properties in solids through a direct measurement of an internal magnetic field (H int ), particularly in condensed matter physics. 18,19 Recently, m + SR also becomes popular in materials science, 6,20,21 because ion diffusion in solids was detected with m + SR from a small deviation of H int caused by a dynamic behavior of ions. 6,10,12,[22][23][24][25] More correctly, H int is observed through the muon spin depolarization function of time [P(t)].…”
Section: + Srmentioning
confidence: 99%
“…m + SR is a common technique for investigating magnetic properties in solids through a direct measurement of an internal magnetic field (H int ), particularly in condensed matter physics. 18,19 Recently, m + SR also becomes popular in materials science, 6,20,21 because ion diffusion in solids was detected with m + SR from a small deviation of H int caused by a dynamic behavior of ions. 6,10,12,[22][23][24][25] More correctly, H int is observed through the muon spin depolarization function of time [P(t)].…”
Section: + Srmentioning
confidence: 99%
“…Researches in physics, chemistry and biology have been widened using conventional muons. For example, study of energy storage materials [11], semiconductor [12], semiconductor and insulators [13], life science [2,[14][15][16][17], polymer [18], particle physics [19,20], and many more.…”
Section: Applications Of Conventional Muonsmentioning
confidence: 99%
“…Recently SR method pointed out its application for cancer research [14] and diagnosis of disease [24]. Electron transfer in protein [17,25] and photosynthesis processes have been studying intensively through experimentally and theoretically [26,27]. Besides accelerator produced muon, cosmic muons are also useful for the study of non-destructive analysis of large scale architectures [28] and characterization of materials like study of trapped radioactive materials [29].…”
Section: Applications Of Conventional Muonsmentioning
confidence: 99%
“…Several µSR experiments have been conducted using biological samples (Nagamine & Torikai, 2004). µSR technique is a potential tool for obtaining microscopic information in biological systems such as protein (Nagamine & Torikai, 2004;Pant et al, 2015;Sugawara et al, 2014) and DNA (Hubbard, Oganesyan, Sulaimanov, Butt, & Jayasooriya, 2004;Nagamine, Torikai, Shimomura, Ikedo, & Schultz, 2009) because µSR technique is sensitive to dynamic and weak magnetism. Torikai, Hori, Hirose, and Nagamine (2006), Nagamine and Torikai (2004) performed µSR measurement to study electron transport in DNA at microscopic level.…”
Section: Introductionmentioning
confidence: 99%