Development of extra-sensitive selective ion sensors based on the monolayer of molecular tripod

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05474
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Functional solid state chemistry
• Research Institution: Mie University
• Principal Investigator: Kitagawa Toshikazu 三重大学, 工学研究科, 教授 (20183791)
• Co-Investigator(Kenkyū-buntansha): 平井 克幸 三重大学, 地域イノベーション推進機構, 准教授 (80208793) ; 岡崎 隆男 三重大学, 工学研究科, 准教授 (90301241)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: イオンセンサー / 自己組織化単分子膜 / 分子三脚 / アダマンタン / デアザプリン / フェロセン / 薗頭カップリング / サイクリックボルタンメトリー

Outline of Final Research Achievements

Self-assembled monolayer of molecular tripod, consisting of a tripod-shaped trithiol with the adamantane core, dezapurine as a metal ligand, and ferrocenyl group as an electroactive moiety, was prepared on a gold substrate. The redox potential of the ferrocenyl group in this monolayer was shifted to the positive side in the presence of Pb2+, Zn2+, and Hg2+, while no shift was observed with Cu2+ and Na+. The sensitivity to Pb2+ was so high that even 1.0E-9 M of Pb2+ could be detected. Thus, an extra-sensitive, selective ion sensor was developed using the self-assembled monolayer of molecular tripod.

Free Research Field

物理有機化学