title: Naked eye plasmonic indicator with multi-responsive polymer brush as signal transducer and amplifier.
abstract: For decades, plasmonic nanostructures have been used as important optical sensing platforms, however, the necessity of sensitive optical instruments for detection greatly limits their practical application. Herein, a multi-responsive naked eye plasmonic indicator has been prepared through introduction of a responsive polymer brush (PNIPAm) into the cavity of a Ag nanovolcano array (Ag NVA). According to the phase change of the PNIPAm brush under different external conditions, the as-prepared Ag NVA shows responsive monochromatic colors, which allow the Ag NVA to serve as a plasmonic indicator detected by the naked eye. Importantly, the as-prepared Ag NVA also possesses a rapid response rate as well as excellent repeatability, and is compatible with conventional micro-fabrication methods. All of these excellent features make the as-prepared Ag NVA an attractive candidate for future optical indicating and intelligent color display applications.
authors.affiliation: College of Sciences, Northeastern University, Shenyang 110819, P. R. China. wangtieqiang@mail.neu.edu.cn fuyu@mail.neu.edu.cn.
authors.forename: Tieqiang
authors.identifier: http://orcid.org/0000-0003-3104-8421
authors.initials: T
authors.lastname: Wang
authors.affiliation: Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, D-01069 Dresden, Germany.
authors.forename: Ye
authors.initials: Y
authors.lastname: Yu
authors.affiliation: College of Sciences, Northeastern University, Shenyang 110819, P. R. China. wangtieqiang@mail.neu.edu.cn fuyu@mail.neu.edu.cn.
authors.forename: Dan
authors.initials: D
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Shuli
authors.initials: S
authors.lastname: Wang
authors.affiliation: College of Sciences, Northeastern University, Shenyang 110819, P. R. China. wangtieqiang@mail.neu.edu.cn fuyu@mail.neu.edu.cn.
authors.forename: Xuemin
authors.initials: X
authors.lastname: Zhang
authors.affiliation: College of Sciences, Northeastern University, Shenyang 110819, P. R. China. wangtieqiang@mail.neu.edu.cn fuyu@mail.neu.edu.cn.
authors.forename: Yunong
authors.initials: Y
authors.lastname: Li
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Junhu
authors.initials: J
authors.lastname: Zhang
authors.affiliation: College of Sciences, Northeastern University, Shenyang 110819, P. R. China. wangtieqiang@mail.neu.edu.cn fuyu@mail.neu.edu.cn.
authors.forename: Yu
authors.initials: Y
authors.lastname: Fu