Issue 5, 2016

A novel pH sensor which could respond to multi-scale pH changes via different fluorescence emissions

Abstract

This paper describes the design and synthesis of a multi-scale pH chemosensor L6 based on the ICT-TICT (an intramolecular charge transfer and a twisted intramolecular charge transfer) state change mechanism. Sensor L6 exhibited two obvious pH jumps (pH ranged from 3.0 to 5.0 and 8.5 to 10.5) among the different pH ranges. Thus, sensor L6 could perform over a broad pH range including acidic, neutral and alkaline ranges by exhibiting different fluorescence emissions (blue at pH 1.0–3.0, green at pH 4.5–8.5 and quenching at pH 10.5–13.5). Interestingly, owing to the sensor’s relatively high water solubility, the whole sensing process could be observed successfully in a DMSO/H2O (v/v, 1/9) aqueous solution. These properties mean sensor L6 has the potential to monitor pH variations over the entire physiological pH range (4.5–8.5).

Graphical abstract: A novel pH sensor which could respond to multi-scale pH changes via different fluorescence emissions

Supplementary files

Article information

Article type
Paper
Submitted
06 Nov 2015
Accepted
08 Mar 2016
First published
09 Mar 2016

New J. Chem., 2016,40, 4562-4565

Author version available

A novel pH sensor which could respond to multi-scale pH changes via different fluorescence emissions

X. Zhu, Q. Lin, P. Chen, Y. Fu, Y. Zhang and T. Wei, New J. Chem., 2016, 40, 4562 DOI: 10.1039/C5NJ03114A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements