Issue 35, 2013
From the journal:

Journal of Materials Chemistry B

Controlling carbon encapsulation of gold nano-aggregates as highly sensitive and spectrally stable SERS tags for live cell imaging†

Guannan Zhang,a   Gan Qu,a   Yong Chen,a   Aiguo Shen,*a   Wei Xie,b   Xiaodong Zhoua  and  Jiming Hu*a  

* Corresponding authors

a Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry & Molecular Sciences, Wuhan University, Wuhan, China
E-mail: agshen@whu.edu.cn, jmhu@whu.edu.cn

b Faculty of Chemistry, University of Duisburg-Essen, Universitaetsstr. 5, D-45141 Essen, Germany

Abstract

We describe a highly sensitive and spectrally stable surface-enhanced Raman scattering (SERS) tag for live cell imaging based on carbon-encapsulated gold nano-aggregates (CEGNAs). Our findings reveal that controlling the synthesis of the gold nano-aggregate core can be achieved under the mediation of cetyltrimethylammonium bromide (CTAB) through electrostatic forces and hydrophobic interactions, and as the number of particles in the aggregates increase, the relative SERS activity also increases hugely.

Graphical abstract: Controlling carbon encapsulation of gold nano-aggregates as highly sensitive and spectrally stable SERS tags for live cell imaging

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Article information

DOI
https://doi.org/10.1039/C3TB20801J
Article type
Communication
Submitted
05 Jun 2013
Accepted
19 Jul 2013
First published
22 Jul 2013

J. Mater. Chem. B, 2013,1, 4364-4369

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Controlling carbon encapsulation of gold nano-aggregates as highly sensitive and spectrally stable SERS tags for live cell imaging

G. Zhang, G. Qu, Y. Chen, A. Shen, W. Xie, X. Zhou and J. Hu, J. Mater. Chem. B, 2013, 1, 4364 DOI: 10.1039/C3TB20801J

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