Issue 2, 2017
From the journal:

RSC Advances

A colorimetric and fluorescent pH probe for imaging in E. coli cells†

Jianbin Chao,*a   Kailun Song,ab   Huijuan Wang,ab   Zhiqing Li,ab   Yongbin Zhang,d   Caixia Yin,c   Fangjun Huo,d   Juanjuan Wanga  and  Ting Zhanga  

* Corresponding authors

a Scientific Instrument Center, Shanxi University, Taiyuan 030006, China
E-mail: chao@sxu.edu.cn
Fax: +86-351-721-2621
Tel: +86-351-721-2621

b School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China

c Institute of Molecular Science, Shanxi University, Taiyuan 030006, China

d Research Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, China

Abstract

A colorimetric and fluorescent pH probe 1-(4-methylphenyl)-3-(4-dimethylaminophenyl) acrylketone (MDAK) was facilely prepared. The probe exhibited strong pH-dependent behavior and responded linearly and rapidly to minor pH fluctuations within the range of 1.53–3.96. In addition, MDAK displayed a notably large Stokes shift of 121 nm. MDAK possessed a highly selective response to H+ over other metal ions, amion acids and displayed good photostability and excellent reversibility. Furthermore, it can be applied to visualize extreme acidity in E. coli cells.

Graphical abstract: A colorimetric and fluorescent pH probe for imaging in E. coli cells

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Article information

DOI
https://doi.org/10.1039/C6RA24885C
Article type
Paper
Submitted
08 Oct 2016
Accepted
06 Nov 2016
First published
04 Jan 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 964-970

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A colorimetric and fluorescent pH probe for imaging in E. coli cells

J. Chao, K. Song, H. Wang, Z. Li, Y. Zhang, C. Yin, F. Huo, J. Wang and T. Zhang, RSC Adv., 2017, 7, 964 DOI: 10.1039/C6RA24885C

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