Issue 5, 2013
From the journal:

Journal of Materials Chemistry B

Interaction of Cy3 dye with CCG and its application for BSA detection

Haiju Li,a   Fengyu Liu,b   Jingfeng Han,c   Mingzhu Cai,a   Shiguo Sun,*a   Jiangli Fan,a   Fengling Songa  and  Xiaojun Peng*a  

* Corresponding authors

a State Key Laboratory of Fine Chemicals, Dalian University of Technology, E 224 West Campus, 2 Linggong Road, Dalian 116012, China
E-mail: shiguo@dlut.edu.cn, pengxj@dlut.edu.cn
Fax: +86 411 84986304

b School of Chemistry, Dalian University of Technology, 2 Linggong Road, Ganjingzi District, Dalian 116023, China

c Division of Solar Energy, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Dalian, China

Abstract

Chemically converted graphene (CCG) was found to effectively quench the fluorescence emission of Cy3 dye 1 (the intensity is down to 1/38 of 1 alone) in aqueous solution, due to the formation of a CCG–1 hybrid. After the addition of a certain amount of bovine serum albumin (BSA) into the above-mentioned system, about 60 times fluorescence enhancement was observed for the hybrid CCG–1. This was employed to discriminate BSA: the fluorescence intensity was found to be proportional to the BSA added in the concentration range from 0 to 8 × 10−6 M, and the BSA detection limit was down to 5 × 10−8 M.

Graphical abstract: Interaction of Cy3 dye with CCG and its application for BSA detection

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Article information

DOI
https://doi.org/10.1039/C2TB00055E
Article type
Paper
Submitted
01 Sep 2012
Accepted
13 Nov 2012
First published
14 Nov 2012

J. Mater. Chem. B, 2013,1, 693-697

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Interaction of Cy3 dye with CCG and its application for BSA detection

H. Li, F. Liu, J. Han, M. Cai, S. Sun, J. Fan, F. Song and X. Peng, J. Mater. Chem. B, 2013, 1, 693 DOI: 10.1039/C2TB00055E

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