Issue 9, 2014
From the journal:

Analyst

Improving the fluorescence detection limit with positively charged carbon nanostructures as a low background signal platform†

Xiulan He,ab   Li Zhang,b   Hetong Qi,b   Ping Yu,*b   Junjie Fei*a  and  Lanqun Mao*b  

* Corresponding authors

a College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
E-mail: fei_junjie@xtu.edu.cn

b Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences (CAS), Beijing 100190, China
E-mail: yuping@iccas.ac.cn, lqmao@iccas.ac.cn
Fax: +86-10-62559373

Abstract

We have demonstrated a new strategy to improve the fluorescence detection limit by enhancing the energy transfer efficiency between carbon structures and fluorescent dyes using polyimidazolium-functionalized carbon nanostructures as a low background signal platform. Based on this, a highly sensitive method for thrombin was proposed with a detection limit as low as 2.79 pM without any amplification.

Graphical abstract: Improving the fluorescence detection limit with positively charged carbon nanostructures as a low background signal platform

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Article information

DOI
https://doi.org/10.1039/C4AN00124A
Article type
Communication
Submitted
17 Jan 2014
Accepted
31 Jan 2014
First published
31 Jan 2014

Analyst, 2014,139, 2114-2117

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Improving the fluorescence detection limit with positively charged carbon nanostructures as a low background signal platform

X. He, L. Zhang, H. Qi, P. Yu, J. Fei and L. Mao, Analyst, 2014, 139, 2114 DOI: 10.1039/C4AN00124A

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