Development of Multi-frequency Vector EPR Spectrometer by White-noise Field Modulation Method.
| Project/Area Number |
07555001
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | Hokkaido University of Education |
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Principal Investigator |
SHIMOYAMA Yuhei Hokkaido University of Education, Physics, Professor., 教育学部・函館校, 教授 (50123948)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUKI Kiyoshi Hokkaido University of Education, Physics, Associate Professor., 教育学部・函館校, 助教授 (00157281)
FUJII Kanae JEOL CO., Analytical Instrument Division, Manager, Electronics, 分析機器技術本部, 課長
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥7,200,000 (Direct Cost: ¥7,200,000)
Fiscal Year 1997: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1996: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1995: ¥5,600,000 (Direct Cost: ¥5,600,000)
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| Keywords | Vector ESR / selective detection / continuous wave / phase spectra / amplitude spectra / biomembrane / saturation transfer / field modulation |
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| Research Abstract |
Development and applications of Vector ESR spectroscopies were reviewed. Vector ESR was developed on the basis of saturation transfer ESR method. We applied the method on the various biomaterial systems, and found that Vector ESR gives a universal method for selective detection in the continuous wave regime. We will further indicate the potentiality vector ESR to the study of biomolecular dynamics.
Thus far, biological applications of vector ESR spectroscopy are just the beginning, and mainly focused on the two area, namely protein and biomembrane systems. Vistnes studied dynamics of spin-labeled hemoglobin using the phase signal of ST-ESR detection. Watari et al. Showed the feasibility of vector ESR spectroscopy as applied on the flavin enzyme system, and found the sensitivity of the phase spectrum. They also indicated that both the amplitude and phase spectra can detected the unknown high spin signal from ferrihemoglobin system.
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Report
(4 results)
Research Products
(7 results)
