Chiral science of an individual molecule

2016 Fiscal Year Final Research Report

• Project/Area Number: 24221009
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Nanomaterials/Nanobioscience
• Research Institution: Osaka University
• Principal Investigator: KUWAHARA YUJI 大阪大学, 工学研究科, 教授 (00283721)
• Co-Investigator(Kenkyū-buntansha): 小松 直樹 京都大学, 人間・環境学研究科(研究院), 教授 (30253008) ; 赤井 恵 大阪大学, 工学(系)研究科(研究院), 助教 (50437373) ; 片山 光浩 大阪大学, 工学(系)研究科(研究院), 教授 (70185817) ; 小川 琢治 大阪大学, 理学(系)研究科(研究院), 教授 (80169185) ; 森川 良忠 大阪大学, 工学(系)研究科(研究院), 教授 (80358184)
• Co-Investigator(Renkei-kenkyūsha): SAITO AKIRA 大阪大学, 大学院工学研究科, 准教授 (90294024) ; OOTSUKA HIDEJI 和歌山大学, システム工学部, 准教授 (50304184) ; KUBO OSAMU 大阪大学, 大学院工学研究科, 准教授 (70370301)
• Project Period (FY): 2012-05-31 – 2017-03-31
• Keywords: 一分子科学 / キラル分子 / 円偏光発光

Outline of Final Research Achievements

In the field of biomolecular science, “chirality” is one of the most important properties. All of the biological molecules are alternative enantiomers which show optical activity. An evolutionary origin of such a homo-chirality of biomolecules is still one of the mysteries of nature. So far, the optical activities have been evaluated by the methods in macroscopic scale such as circular dichroism and optical rotation dispersion. For clarifying causality between the optical activities and atomic/electronic configurations, it is quite attractive to investigate the optical properties of chiral molecules at nanoscale. In this research, we construct a combined analysis system for evaluating various properties of a chiral molecular nano-systems, and then proceed mainly to observe the right and left circularly polarized light emission distinctively using scanning tunneling microscopy light emission spectroscopy, tip-enhanced Raman scattering spectroscopy, and so on.

Free Research Field

複合新領域