Gold        nanorod        assembly based approach to toxin detection by SERS

Yingyue Zhu; Hua Kuang; Liguang Xu; Wei Ma; Chifang Peng; Yufei Hua; Libing Wang; Chuanlai Xu

doi:10.1039/C2JM15238J

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Gold nanorodassembly based approach to toxin detection by SERS†

Yingyue Zhu,‡^a Hua Kuang,‡^a Liguang Xu,‡^a Wei Ma,^a Chifang Peng,^a Yufei Hua,^a Libing Wang*^ab and Chuanlai Xu*^a

Author affiliations

* Corresponding authors

^a School of Food Science & Technology, State Key Lab of Food Science & Technology, Jiangnan University, Wuxi, China
E-mail: wanglb1@163.com, xcl@jiangnan.edu.cn
Tel: +86-510-85329076

^b Hunan Entry–Exit Inspection and Quarantine Bureau, Changsha, China

Abstract

A novel, rapid and ultrasensitive surface-enhanced Raman scattering (SERS) immunoassay for the detection of microcystin LR was developed based on the assembly of gold nanorods (GNRs). GNRs were assembled into nanorod chains through the bio-recognition. The SERS signal of the probe molecule modified to the end of the NRs could be enhanced due to the hot spot between the NRs. Meanwhile, the finite integration technique simulation revealed that the electrical field of nanorods was increased obviously depending on the degree of end to end assembled structures. The research results demonstrated that the linear detection range was from 0.01 ng mL⁻¹ to 5 ng mL⁻¹, the limit of detection was 5 pg mL⁻¹, and the time necessary for the analysis was only 15 min.

Download options Please wait...

Supplementary files

Supplementary information PDF (399K)

Article information

DOI: https://doi.org/10.1039/C2JM15238J
Article type: Communication
Submitted: 15 Oct 2011
Accepted: 09 Dec 2011
First published: 22 Dec 2011

Download Citation

J. Mater. Chem., 2012,22, 2387-2391

Permissions

Request permissions

Gold nanorod assembly based approach to toxin detection by SERS

Y. Zhu, H. Kuang, L. Xu, W. Ma, C. Peng, Y. Hua, L. Wang and C. Xu, J. Mater. Chem., 2012, 22, 2387 DOI: 10.1039/C2JM15238J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Fetching data from CrossRef.
This may take some time to load.

Journal of Materials Chemistry