Top > Search Research paper > (In Japanese)電極表面上での分子集合組織変化 ‐動的機構の解明と機能発現‐

(In Japanese)電極表面上での分子集合組織変化 ‐動的機構の解明と機能発現‐

Research report code R030000287
Posted date Feb 22, 2005
  • (In Japanese)相樂 隆正
  • (In Japanese)長崎大学大学院生産科学研究科
Research organization
  • (In Japanese)長崎大学
Report name (In Japanese)電極表面上での分子集合組織変化 ‐動的機構の解明と機能発現‐
Technology summary (In Japanese)従来、電極表面上の機能性超薄膜は、機能に必要な局所部位の動き以外には静的安定であって動的な変化を示さないことが理想的だとされてきた。逆に、分子組織を積極的に電位で動かすことにより、新たな機能が生まれないのだろうか、どこまで大きな動きを与え制御できるのだろうかと言う点に着目し電極表面上の分子が示す動的挙動の本質を明らかにすることを目指した。また、「分子組織体の動的電気化学」の未踏分野開拓に向けて、分子集合組織やデンドリマー、金属ナノ粒子などの素構造体を、電極電位によって可逆的に動かすことに挑戦した。

※Click image to enlarge.

R030000287_01SUM.gif R030000287_02SUM.gif
Research field
  • Optical properties of condensed matter in general
  • Electrode potential, electromotive force
  • Electrochemical reaction
  • Electron theory of adsorption
Published papers related (In Japanese)(1) T. Sagara, S. Tanaka, Y. Fukuoka, N. Nakashima, “Study of the Voltammetric Spike Response of Heptylviologen at a HOPG Electrode Horizontally Touched to a Gas/Heptylviologen Aqueous Solution Interface”, Langmuir, 17, pp.1620-1629 (2001).
(2) T. Sagara, N. Kato, N. Nakashima, “Electroreflectance Study of Gold Nanoparticles Immobilized on an Aminoalkanethiol Monolayer Coated on a Polycrystalline Gold Electrode Surface”, J. Phys. Chem. B, 106, pp.1205-1212 (2002).
(3) T. Sagara, S. Tanaka, K. Miuchi, N. Nakashima, “Characteristics of Faradaic Phase Transition of an Adsorption Layer of Heptyl Viologen at a Basal Plane HOPG Electrode”, J. Electroanal. Chem., 524-525C, pp.68-76 (2002).
(4) T. Sagara, N. Kato, A. Toyota, N. Nakashima, “Anomalous Electroreflectance and Absorption Spectra of Viologen Radical Cation in Close Proximity of Gold Nanoparticles at Electrified Interfaces”, Langmuir, 18, pp.6995-7001 (2002).
(5) T. Sagara, K. Nagata, H. Tsuruta, N. Nakashima, “Dynamic Dendrimer at Electrified Interface: Potential Dependent Adsorption-Desorption and Reorientation of a 4-Pyridyl-Modified PAMAM Dendrimer”, ChemComm, 2002, pp.2116-2117.
(6) T. Sagara, “Structure and Dynamic Behavior of Organic Monolayers on Electrode Surfaces as Characterized by Electroreflectance Spectroscopy”, 197th Meeting of the Electrochemical Society, Toronto, Canada, May 2000.
(7) T. Sagara, H. Tsuruta, Y. Fukuoka, S. Tanaka, N. Nakashima, “Viologen Monolayers: Dynamics on Electrode Surfaces”, Studies in Surface Science and Catalysis, Vol. 132, Eds. Y. Iwasawa, N. Oyama, H. Kunieda, Elsevier Science B. V., pp.841-844 (2001).
(8) 相楽隆正,“電位変調反射分光法”,Electrochemistry (Tokyo), 69, 289-293 (2001).
(9) T. Sagara, “Dynamic Behavior of Mono-Molecular and Mono-Particle Layers at Electrified Interfaces”, International Conference on Electrified Interfaces, 9th in a Series on Non Traditional Methods, Arcadia University, Wolfville, Nova Scotia, Canada, June 2001.
(10) T. Sagara, “Voltammetric and Spectroelectrochemical Study of Viologen Monolayers on Electrode Surfaces”, 2001 Joint International Meeting, 200th Meeting of the Electrochemical Society & 52th Meeting of International Society of Electrochemistry, San Francisco, USA, September 2001.
Research project
  • Precursory Research for Embryonic Science and Technology.;Organization and Function
Information research report
  • (In Japanese)相樂 隆正. 電極表面上での分子集合組織変化 -動的機構の解明と機能発現-. 「さきがけ研究21」研究報告会 「組織化と機能」領域 講演要旨集(研究期間:1999-2002),2002. p.12 - 13.