Development of an imaging technique enhancing paramagnetic species by optical detection of electron spin resonance

2016 Fiscal Year Final Research Report

• Project/Area Number: 26410152
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Analytical chemistry
• Research Institution: Osaka University
• Principal Investigator: Suwa Masayori 大阪大学, 理学研究科, 助教 (90403097)
• Co-Investigator(Renkei-kenkyūsha): TSUKAHARA Satoshi 大阪大学, 大学院理学研究科, 教授 (50207338)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 電子スピン共鳴 / 常磁性化学種 / ファラデー効果 / イメージング法

Outline of Final Research Achievements

Since there is little fluorescent dye that is effective for transition metals such as iron, copper, manganese and so on, it is impossible to enhance these species by optical microscope. In this study, we focused on electron spin in these compounds and we examined the optical detection of magnetic resonance. We successfully observed the ferromagnetic resonance of iron oxide nanoparticles via the change of the Faraday effect, an optical gyration phenomenon in magnetized materials. Therefore, we were able to demonstrate the principle of this technique. The exponential improvement of the spatial resolution in magnetic resonance techniques can be expected.

Free Research Field

分析化学