文献类型：期刊文献

英文题名：A light-driven three-dimensional plasmonic nanosystem that translates molecular motion into reversible chiroptical function

作者：Kuzyk, Anton[1];Yang, Yangyang[2,3,6];Duan, Xiaoyang[1,4];Stoll, Simon[1];Govorov, Alexander O.[5];Sugiyama, Hiroshi[2,3];Endo, Masayuki[2];Liu, Na[1,4]

机构：[1]Max Planck Inst Intelligent Syst, Heisenbergstr 3, D-70569 Stuttgart, Germany;[2]Kyoto Univ, Inst Integrated Cell Mat Sci WPI iCeMS, Sakyo Ku, Kyoto 6068501, Japan;[3]Kyoto Univ, Grad Sch Sci, Dept Chem, Sakyo Ku, Kyoto 6068502, Japan;[4]Heidelberg Univ, Kirchhoff Inst Phys, Neuenheimer Feld 227, D-69120 Heidelberg, Germany;[5]Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA;[6]E China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab Chem Biol, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2016

卷号：7

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000371019700009)】；

基金：We thank A. Jeltsch and R. Jurkowska for assistance with CD spectrometry. We thank M. Kelsch for assistance with TEM. TEM images were collected at the Stuttgart Center for Electron Microscopy (StEM). N.L. was supported by the Sofja Kovalevskaja Award from the Alexander von Humboldt Foundation. A.K. was supported by a postdoctoral fellowship from the Alexander von Humboldt Foundation. A.K. and N.L. were supported by a Marie Curie CIG Fellowship. We also thank for the financial support from the European Research Council (ERC) Starting Grant 'Dynamic Nano'. A.O.G. was supported by the U.S. Army Research Office under grant number W911NF-12-1-0407 and by Volkswagen Foundation (Germany). M.E. was supported by JSPS KAKENHI (grant numbers 15H03837, 24104002 and 26620133).

语种：英文

摘要：Nature has developed striking light-powered proteins such as bacteriorhodopsin, which can convert light energy into conformational changes for biological functions. Such natural machines are a great source of inspiration for creation of their synthetic analogues. However, synthetic molecular machines typically operate at the nanometre scale or below. Translating controlled operation of individual molecular machines to a larger dimension, for example, to 10-100 nm, which features many practical applications, is highly important but remains challenging. Here we demonstrate a light-driven plasmonic nanosystem that can amplify the molecular motion of azobenzene through the host nanostructure and consequently translate it into reversible chiroptical function with large amplitude modulation. Light is exploited as both energy source and information probe. Our plasmonic nanosystem bears unique features of optical addressability, reversibility and modulability, which are crucial for developing all-optical molecular devices with desired functionalities.