화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2014년 가을 (10/06 ~ 10/08, 제주 ICC)
권호 39권 2호
발표분야 기능성 고분자
제목 A Light-driven bending in an azobenzene-containing supramolecule nanowire
초록 Photomechanical soft actuators have attracted great attention because of their meritorious wireless and rapid actuation properties as well as their applications in robotics, artificial muscle and biomedical engineering. Even though realized in macro- or micro scale one dimensional (1D) structure, photomechanical actuators are largely unexplored as 1D nanowire (NW). In this study, we developed a single photomechanical supramolecular NW actuator that employs the azobenzene-containing tris(4-((E)-phenyldiazenyl)phenyl)-benzene-1,3,5-tricarboxamide (Azo-1). Single Azo-1 NWs undergo bending upon irradiation with UV light that is reversed upon visible light irradiation. The kinetics of the actuation response corresponds the first-order kinetics of azobenzene photoisomerization, implying that the bending of NW is linked to the molecular level transition. A wireless photomechanical NW tweezers that remotely manipulates a single micro-particle was also developed.
저자 이준호1, 오승환2, 표재연1, 김종만2, 제정호1
소속 1포항공과대, 2한양대
키워드 light-driven actuators; nanowire; azo compounds; supramolecular chemistry; soft robotics
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