Issue 6, 2011
From the journal:

Journal of Materials Chemistry

Amplifying fluorescence sensing based on inverse opal photonic crystal toward trace TNT detection†

Heng Li,ab   Jingxia Wang,*a   Zelin Pan,a   Liying Cui,a   Liang Xu,a   Rongming Wang,*b   Yanlin Song*a  and  Lei Jianga  

* Corresponding authors

a Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory of New Materials, Key Laboratory of Organic Solids, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, P. R. China
E-mail: wangzhang@iccas.ac.cn, ylsong@iccas.ac.cn.
Fax: +86 10-82672719
Tel: +86 10-62529284

b Key Laboratory of Micro-nano Measurement-Manipulation and Physics, Department of Physics, Beijing University of Aeronautics and Astronautics, Beijing, P. R. China
E-mail: rmwang@buaa.edu.cn
Fax: +86 10-8233 9567
Tel: +86 10-8233 9567

Abstract

A fluorescence-amplifying method based on photonic crystal (PC) has been demonstrated for trace TNT detection. The fluorescence enhancement for TNT detection on the optimized PC can be up to 60.6-fold in comparison to that of the control sample, which combines the slow photon effect of PC and large surface areas of the inverse opal structure. Furthermore, the quenching efficiency of the PC-based sensor achieves 80% after exposure to TNT vapor for 300 s. The results suggest that the fluorescence-amplifying method based on PC has enormous potential for the development of highly efficient fluorescence sensors toward detection of trace TNT or other explosives.

Graphical abstract: Amplifying fluorescence sensing based on inverse opal photonic crystal toward trace TNT detection

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Article information

DOI
https://doi.org/10.1039/C0JM02554B
Article type
Paper
Submitted
05 Aug 2010
Accepted
10 Nov 2010
First published
06 Dec 2010

J. Mater. Chem., 2011,21, 1730-1735

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Amplifying fluorescence sensing based on inverse opal photonic crystal toward trace TNT detection

H. Li, J. Wang, Z. Pan, L. Cui, L. Xu, R. Wang, Y. Song and L. Jiang, J. Mater. Chem., 2011, 21, 1730 DOI: 10.1039/C0JM02554B

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