A bumpy gold nanostructure exhibiting DNA-engineered stimuli-responsive SERS signals

Yingxu Shang; Jia Shi; Huan Liu; Xinfeng Liu; Zhen-Gang Wang; Baoquan Ding

doi:10.1039/C8NR00986D

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A bumpy gold nanostructure exhibiting DNA-engineered stimuli-responsive SERS signals†

Yingxu Shang,^ab Jia Shi,^ab Huan Liu,^a Xinfeng Liu,

^ab Zhen-Gang Wang*^a and Baoquan Ding

*^ab

Author affiliations

* Corresponding authors

^a CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P.R.China
E-mail: wangzg@nanoctr.cn, dingbq@nanoctr.cn

^b University of Chinese Academy of Sciences, Beijing 100049, P. R. China

Abstract

We present a SERS-active gold nanostructure with built-in electromagnetic hotspots formed by densely packed gold nanoparticles on a gold nanorod. Cy3 labeled stimuli-responsive DNA motifs were introduced to the SERS-active nanostructure. The SERS signals can be switched ON and OFF reversibly in response to external stimuli (pH, metal ions or organic molecules).

This article is part of the themed collection: Research selection from the NCNST

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Article information

DOI: https://doi.org/10.1039/C8NR00986D
Article type: Communication
Submitted: 03 Feb. 2018
Accepted: 25 Apr. 2018
First published: 02 Mei 2018

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Nanoscale, 2018,10, 9455-9459

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A bumpy gold nanostructure exhibiting DNA-engineered stimuli-responsive SERS signals

Y. Shang, J. Shi, H. Liu, X. Liu, Z. Wang and B. Ding, Nanoscale, 2018, 10, 9455 DOI: 10.1039/C8NR00986D

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A bumpy gold nanostructure exhibiting DNA-engineered stimuli-responsive SERS signals†

Abstract

Supplementary files

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A bumpy gold nanostructure exhibiting DNA-engineered stimuli-responsive SERS signals

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