Molecular Hysteresis Recognition Gating Membrane and Multi-Mode Expression

2014 Fiscal Year Final Research Report

• Project/Area Number: 24360326
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Reaction engineering/Process system
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: YAMAGUCHI Takeo 東京工業大学, 資源化学研究所, 教授 (30272363)
• Co-Investigator(Kenkyū-buntansha): TAMAKI Takanori 東京工業大学, 資源化学研究所, 講師 (80567438) ; OHASHI Hidenori 東京工業大学, 資源化学研究所, 助教 (00541179) ; OHSHIBA Yuhei 東京工業大学, 資源化学研究所, 助教 (10708530)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: hysteresis recognition / molecular recognition / gating membrane / multi-mode / bio-inspired

Outline of Final Research Achievements

In the present study, to reproduce the sophisticated function of hysteresis recognition in living body, a novel membrane of ion recognition polyampholyte gating membrane was developed. The membrane was fabricated by grafting ion recognition polyampholytes onto the pore surface of a porous polyethylene substrate. The ion recognition polyampholyte comprises polyampholyte having both of positive/negative charges (known to take multi-phase in response to pH hysteresis) and crown ether moiety (known as specific receptor for signal ions). The developed gating membrane was found to have response properties to environmental hysteresis. Furthermore, the membrane exhibits chemical logistic gating property in response to two signals of pH and recognizable ion.

Free Research Field

化学工学