Preparation of single crystal region of lipid cubic phase and its application to phase transition studies

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05243
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biological physics/Chemical physics/Soft matter physics
• Research Institution: Shizuoka University
• Principal Investigator: Oka Toshihiko 静岡大学, 電子工学研究所, 准教授 (60344389)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: リオトロピック液晶 / キュービック相 / 相転移 / 単結晶作成 / X線結晶構造解析

Outline of Final Research Achievements

Lyotropic liquid crystal is composed of two components such as lipid and water. Phase transition and structural analysis of lyotropic liquid crystal cubic phase were carried out. For the phase transition from cubic phase to another cubic phase, the orientational relationship before and after the phase transition was clarified. Based on this, a model of phase transition was constructed. Moreover, I did X-ray single crystal structural study of the cubic phase for the first time in the world and showed that the fluctuation of the bilayer membrane depends on the place from the obtained electron density map. I also studied how to create a single domain of lyotropic liquid crystal hexagonal phase.

Free Research Field

ソフトマター物理・生物物理