pH and Temperature Dual-Responsive Plasmonic Switches of Gold Nanoparticle Monolayer Film for Multiple Anticounterfeiting

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	pH and Temperature Dual-Responsive Plasmonic Switches of Gold Nanoparticle Monolayer Film for Multiple Anticounterfeiting
	Chen, Tao; Liu, Baoqing; Lu, Xuefei; Qiao, Ze; Song, Liping; Cheng, Qian; Zhang, Jiawei; Zhang, Afang; Huang, Youju
刊名	LANGMUIR
	2018
卷号	34 期号:43 页码:13047-13056
关键词	Polymer Interfaces Chemistry Nanoplasmonics Nanostructures Nanomaterials Nanospheres Generation Nanosheets Resonance
英文摘要	Two-dimensional (2D) gold nanoparticle (Au NP) mono layer film possesses a lot of fascinating peculiarities, and has shown promising applications in photoelectrical devices, catalysis, spectroscopy, sensors, and anticounterfeiting. Because of the localized surface plasmon resonance (LSPR) property predetermined by the natural structure of metal nanoparticles, it is usually difficult to realize the reversible LSPR transition of 2D film. In this work, we report on the fabrication of a large-area freestanding Au NP monolayer film with dual-responsive switchable plasmonic property using a pH- or thermal-responsive dendronized copolymer as a stimuli-sensitive linker. In this system, an oligoethylene-glycol-based (OEG-based) dendronized copolymer (named PG1A) with pH or temperature sensitivity was first modified onto the surface of a Au NP. Then, polyethylene glycol dibenzyl aldehyde (PEG-DA) was introduced to interact with the amino moieties from PG1A before the process of oil water interfacial self-assembly of NPs, resulting in an elastic, robust, pH- or temperature-sensitive interpenetrating network among Au NPs in monolayer films. In addition, the film could exhibit reversibly plasmonic shifts of about 77 nm and inherent color changes through varying temperature or pH. The obtained free-standing monolayer film also shows an excellent transferable property, which can be easily transferred onto substrates such as plastic molds, PDMS, copper grids, and silicon wafers. In virtue of these peculiarities of the free-standing property, special plasmonic signal, and homologous macroscopic color, the transferred film was primely applied to an anticounterfeiting security label with clear color change at the designed spots, providing a new avenue to plasmonic nanodevices with various applications.
学科主题	Materials Science ; Physics
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17103]
专题	2018专题
推荐引用方式 GB/T 7714	Chen, Tao,Liu, Baoqing,Lu, Xuefei,et al. pH and Temperature Dual-Responsive Plasmonic Switches of Gold Nanoparticle Monolayer Film for Multiple Anticounterfeiting[J]. LANGMUIR,2018,34(43):13047-13056.
APA	Chen, Tao.,Liu, Baoqing.,Lu, Xuefei.,Qiao, Ze.,Song, Liping.,...&Huang, Youju.(2018).pH and Temperature Dual-Responsive Plasmonic Switches of Gold Nanoparticle Monolayer Film for Multiple Anticounterfeiting.LANGMUIR,34(43),13047-13056.
MLA	Chen, Tao,et al."pH and Temperature Dual-Responsive Plasmonic Switches of Gold Nanoparticle Monolayer Film for Multiple Anticounterfeiting".LANGMUIR 34.43(2018):13047-13056.