DNA-Directed Assembly of Gold Nanohalo for Quantitative Plasmonic Imaging of Single-Particle Catalysis

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	DNA-Directed Assembly of Gold Nanohalo for Quantitative Plasmonic Imaging of Single-Particle Catalysis
	Li, K; Wang, K; Qin, WW; Deng, SH; Li, D; Shi, JY; Huang, Q; Pan, CH
刊名	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
	2015
卷号	137 期号:13 页码:4292—4295
关键词	CORE-SATELLITE NANOASSEMBLIES CHEMICAL-REACTIONS REAL-TIME NANOPARTICLES SPECTROSCOPY NANOSTRUCTURES NANOCRYSTALS NANOSENSORS NANORODS
英文摘要	Plasmonic imaging under a dark-field microscope (DFM) holds great promise for single-particle analysis in bioimaging, nanophotonics, and nanocatalysis. Here, we designed a DNA-directed programmable assembly strategy to fabricate a halo-like Au nanostructure (nanohalo) that couples plasmonic large gold nanoparticles (L-AuNPs) with catalytically active small AuNPs (S-AuNPs) in a single nanoarchitecture. Catalytic reaction occurring on S-AuNPs changes its permittivity, which results in a significant variation of the plasmonic resonance of the nanohalo. Hence, we can indirectly monitor catalytic reactions on a single nanohalo under DFM, on the basis of which we have obtained quantitative information on both nanocatalysis and catalyst poisoning. Our study thus provides a cost-effective means to quantitatively study metal NP-based catalysis at single-particle level.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24434]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Li, K,Wang, K,Qin, WW,et al. DNA-Directed Assembly of Gold Nanohalo for Quantitative Plasmonic Imaging of Single-Particle Catalysis[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2015,137(13):4292—4295.
APA	Li, K.,Wang, K.,Qin, WW.,Deng, SH.,Li, D.,...&Pan, CH.(2015).DNA-Directed Assembly of Gold Nanohalo for Quantitative Plasmonic Imaging of Single-Particle Catalysis.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,137(13),4292—4295.
MLA	Li, K,et al."DNA-Directed Assembly of Gold Nanohalo for Quantitative Plasmonic Imaging of Single-Particle Catalysis".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 137.13(2015):4292—4295.