Issue 4, 2011
From the journal:

New Journal of Chemistry

A highly selective ratiometric fluorescent chemosensor for Ag+ based on a rhodanineacetic acid–pyrene derivative†

Bo Zhang,a   Jian Sun,a   Chun Bi,a   Gui Yin,*a   Lin Pu,*b   Yi Shi*b  and  Li Sheng*c  

* Corresponding authors

a Key Laboratory of Analytical Chemistry for Life Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China
E-mail: yingui@nju.edu.cn
Fax: +86 025-83314502

b Key Laboratory of Advanced Photonic and Electronic Materials, Nanjing National Laboratory of Microstructure, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, PR China
E-mail: pulin@nju.edu.cn
Fax: +86 025-83685476

c Nanjing National Laboratory of Microstructure, School of Physics, Nanjing University, Nanjing 210093, PR China
E-mail: shengli@nju.edu.cn

Abstract

A highly selective ratiometric fluorescent Ag+ chemosensor RAAP which featured Ag+-induced enhancement of fluorescence emission and blue-shift of the UV-vis spectrum (64 nm) was developed. Both of the changes are due to the Ag+-induced conformational changes from a pyrene monomer to a pyrene excimer and the formation of a crossing configuration. The fluorescence detection limit of Ag+ can reach 1.0 × 10−7 M, which complies with the standards of US EPA and World Health Organization (WHO) for drinking water (5.0 × 10−7 M). RAAP is organic solvent-stable and pH-stable and its spectral response toward Ag+ is found to be reversible.

Graphical abstract: A highly selective ratiometric fluorescent chemosensor for Ag+ based on a rhodanineacetic acid–pyrene derivative

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Supplementary files

Article information

DOI
https://doi.org/10.1039/C0NJ00958J
Article type
Paper
Submitted
05 Dec 2010
Accepted
07 Jan 2011
First published
03 Feb 2011

New J. Chem., 2011,35, 849-853

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A highly selective ratiometric fluorescent chemosensor for Ag+ based on a rhodanineacetic acid–pyrene derivative

B. Zhang, J. Sun, C. Bi, G. Yin, L. Pu, Y. Shi and L. Sheng, New J. Chem., 2011, 35, 849 DOI: 10.1039/C0NJ00958J

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