Fabrication and photo-induced morphology change of novel photo-responsive nanoscrolls

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K05267
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 28030:Nanomaterials-related
• Research Institution: University of Miyazaki
• Principal Investigator: Nabetani Yu 宮崎大学, 工学部, 准教授 (50457826)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: ナノスクロール / ナノシート / アゾベンゼン / フォトクロミズム / ニオブ酸 / チタンニオブ酸 / 光伸縮運動

Outline of Final Research Achievements

In this study, novel photo-responsive nanoscrolls have been fabricated by combining an inorganic nanosheet with polyfloroalkyl azobenzene derivatives with different length of terminal alkyl chains to understand the mechanism of the winding and unwinding motion of nanoscroll upon photo-irradiations. The nanostructure and morphology changes of nanoscrolls and the corresponding layered nanosheet hybrids were analyzed by atomic force microscopy, X-ray diffraction and absorption spectroscopy. It was found that the nanostructure physical properties of nanoscroll may play an important role for inducing the nanosheet sliding causing to the winding and unwinding motion of nanoscroll upon photo-irradiations. These niobate nanoscrolls can be expected to be applied for a novel photo-activated nanoactuator.

Free Research Field

光化学、機能性材料、ナノシートの化学

Academic Significance and Societal Importance of the Research Achievements

本研究によりナノスクロールの光伸縮運動の機能発現メカニズムを解明することができ、光伸縮運動の効率的な機能発現に関する重要な指針を得た。このことから、新しい光駆動するナノアクチュエーターや人工筋肉材料の開発における大きな進展が期待できるだけでなく、ナノシートを分子材料の機能発現の場とする新しい機能発現手法として、有機結晶分野や複合材料分野での機能性分子材料開発が期待されるため、新たな研究展開につながる。